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Ochoa‐Avilés C, Ochoa‐Avilés A, Rivas‐Párraga R, Escandón S, Santos‐Jesus TD, Silva MDJ, Leão V, Salinas M, Vicuña Y, Baldeón L, Molina‐Cando MJ, Morillo D, Machuca M, Rodas C, Figueiredo C, Neira VA. Mother's smoking habits affects IL10 methylation but not asthma in Ecuadorian children. Mol Genet Genomic Med 2024; 12:e2438. [PMID: 38666495 PMCID: PMC11046467 DOI: 10.1002/mgg3.2438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/22/2024] [Accepted: 03/28/2024] [Indexed: 04/29/2024] Open
Abstract
There is no evidence evaluating the IL10 epigenetic upregulation among mestizo children in a high-altitude Andean city in Latin America. OBJECTIVE To identify polymorphisms and methylation profiles in the IL10 gene associated with asthma in children aged 5 to 11. METHODS A case-control study was conducted with asthmatic and non-asthmatic children aged 5 to 11 years in Cuenca-Ecuador. Data on allergic diseases and risk factors were collected through a questionnaire for parents. Atopy was measured by skin prick test (SPT) to relevant aeroallergens. Three IL10 single nucleotide polymorphisms were evaluated in all participants, and methylation analysis was performed in 54 participants. Association between risk factors, allergic diseases and genetic factors were estimated using multivariate logistic regression. RESULTS The results of polymorphisms showed no differences between cases and controls when comparing the SNPs rs3024495, rs3024496, rs1800896 allelic and genotypic frequencies. In the methylation analysis, no differences in the IL10 methylation profile were found between cases and controls; however, the multivariate analysis showed an association between the mother's smoking habits and the IL10 methylation profile. CONCLUSION Smoking habit could be essential as an environmental exposure factor in regulating gene expression in children with asthma.
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Affiliation(s)
- Cristina Ochoa‐Avilés
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
- Departamento de Biorregulação, Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBahiaBrazil
| | | | - Roque Rivas‐Párraga
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
- Biomass to Resources GroupUniversidad Regional Amazónica IkiamTenaNapoEcuador
| | - Samuel Escandón
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
| | - Talita Dos Santos‐Jesus
- Departamento de Biorregulação, Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBahiaBrazil
| | - Milca de J. Silva
- Departamento de Biorregulação, Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBahiaBrazil
| | - Valderiene Leão
- Departamento de Biorregulação, Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBahiaBrazil
| | - Marco Salinas
- Biomass to Resources GroupUniversidad Regional Amazónica IkiamTenaNapoEcuador
| | - Yosselin Vicuña
- Instituto de Investigación en Biomedicina Facultad de Ciencias MédicasUniversidad Central del EcuadorQuitoPichinchaEcuador
| | - Lucy Baldeón
- Instituto de Investigación en Biomedicina Facultad de Ciencias MédicasUniversidad Central del EcuadorQuitoPichinchaEcuador
| | - María José Molina‐Cando
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
- Facultad de MedicinaUniversidad Internacional del EcuadorQuitoPichinchaEcuador
| | - Diana Morillo
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
- Facultad de MedicinaUniversidad Internacional del EcuadorQuitoPichinchaEcuador
| | - Marcos Machuca
- Facultad de MedicinaUniversidad del AzuayCuencaAzuayEcuador
| | - Claudia Rodas
- Facultad de MedicinaUniversidad del AzuayCuencaAzuayEcuador
| | - Camila Figueiredo
- Departamento de Biorregulação, Instituto de Ciências da SaúdeUniversidade Federal da BahiaSalvadorBahiaBrazil
| | - Vivian Alejandra Neira
- Departamento de BiocienciasUniversidad de CuencaCuencaAzuayEcuador
- Facultad de MedicinaUniversidad del AzuayCuencaAzuayEcuador
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2
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Esteban ME, Pino D, Romero-Lorca A, Novillo A, Gaibar M, Riancho JA, Rojas-Martínez A, Flores C, Lapunzina P, Carracedo Á, Athanasiadis G, Fernández-Santander A. Worldwide distribution of genetic factors related to severity of COVID-19 infection. Ann Hum Biol 2024; 51:2366248. [PMID: 39012049 DOI: 10.1080/03014460.2024.2366248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 05/28/2024] [Indexed: 07/17/2024]
Abstract
BACKGROUND Genome-wide association studies of COVID-19 severity have been carried out mostly on European or East Asian populations with small representation of other world regions. Here we explore the worldwide distribution and linkage disequilibrium (LD) patterns of genetic variants previously associated with COVID-19 severity. METHODS We followed up the results of a large Spanish genome-wide meta-analysis on 26 populations from the 1000 Genomes Project by calculating allele frequencies and LD scores of the nine most significant SNPs. We also used the entire set of summary statistics to compute polygenic risk scores (PRSs) and carried out comparisons at the population and continental level. RESULTS We observed the strongest differences among continental regions for the five top SNPs in chromosome 3. European, American, and South Asian populations showed similar LD patterns. Average PRSs in South Asian and American populations were consistently higher than those observed in Europeans. While PRS distributions were similar among South Asians, the American populations showed striking differences among them. CONCLUSIONS Considering the caveats of PRS transferability across ethnicities, our analysis showed that American populations present the highest genetic risk score, hence potentially higher propensity, for COVID-19 severity. Independent validation is warranted with additional summary statistics and phenotype data.
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Affiliation(s)
- María Esther Esteban
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, España
| | - Débora Pino
- Helmholtz Pioneer Campus, Helmholtz Munich, Munich, Germany
| | - Alicia Romero-Lorca
- Department of Medicine, Health and Biomedical Science School, Universidad Europea de Madrid, Madrid, Spain
- Human Genetic Variability Group, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid-Getafe University Hospital-Universidad Europea de Madrid), Madrid, Spain
| | - Apolonia Novillo
- Human Genetic Variability Group, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid-Getafe University Hospital-Universidad Europea de Madrid), Madrid, Spain
- Department of Cell Biology, Faculty of Medicine, Complutense University, Madrid, Spain
| | - María Gaibar
- Human Genetic Variability Group, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid-Getafe University Hospital-Universidad Europea de Madrid), Madrid, Spain
- Facultad HM de Ciencias de la Salud, Universidad Camilo José Cela, Instituto de Investigación Sanitaria HM Hospitales, Madrid, España
| | - José A Riancho
- IDIVAL, Santander, Spain
- Universidad de Cantabria, Santander, Spain
- Hospital U M Valdecilla, Santander, Spain
| | - Augusto Rojas-Martínez
- Tecnologico de Monterrey, The Institute for Obesity Research and Escuela de Medicina y Ciencias de la Salud and Hospital San Jose TecSalud, Monterrey, Mexico
| | - Carlos Flores
- Genomics Division, Instituto Tecnológico y de Energías Renovables, Santa Cruz de Tenerife, Spain
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Department of Clinical Sciences, University Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Spain
| | - Pablo Lapunzina
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Genética Médica y Molecular (INGEMM), Hospital Universitario La Paz-IDIPAZ, Madrid, Spain
- ERN-ITHACA-European Reference Network, Paris, France
| | - Ángel Carracedo
- Centre for Biomedical Network Research on Rare Diseases (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
- Centro Nacional de Genotipado (CEGEN), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela, Spain
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Fundación Pública Galega de Medicina Xenómica, Sistema Galego de Saúde (SERGAS), Santiago de Compostela, Spain
| | - Georgios Athanasiadis
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
| | - Ana Fernández-Santander
- Department of Medicine, Health and Biomedical Science School, Universidad Europea de Madrid, Madrid, Spain
- Human Genetic Variability Group, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital-Universidad Autónoma de Madrid-Getafe University Hospital-Universidad Europea de Madrid), Madrid, Spain
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Cerbon D, Taylor D, Barreto-Coelho P, Rodriguez E, Schlumbrecht M, Hurley J, George SHL. The Genetic Paradigm of Hereditary Breast and Ovarian Cancer (HBOC) in the Afro-Caribbean Population. Crit Rev Oncog 2024; 29:99-112. [PMID: 38683157 DOI: 10.1615/critrevoncog.2024051599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Differences in tumor biology and genetic predisposition have been suggested as factors influencing overall survival and increased mortality in Black breast and ovarian cancer patients. Therefore, it is key to evaluate genetic susceptibilities in Afro-Caribbean patients because the black population in the US is not homogeneous. Identifying a high incidence of hereditary breast and ovarian cancer (HBOC) in Afro-Caribbean countries can lead to understanding the pattern of inherited traits in US-Caribbean immigrants and their subsequent generations. The paucity of projects studying the genetic landscape in these populations makes it difficult to design studies aimed at optimizing screening and prophylaxis strategies, which in turn, improve survival and mortality rates. This scoping review identifies and categorizes current research on the genetic paradigm of HBOC in the Afro-Caribbean population. We performed an evaluation of the evidence and generated a summary of findings according to preferred reporting items for systematic review and meta-analysis (PRISMA) Extension for Scoping Reviews guidelines. We included articles that assessed the incidence and prevalence of pathologic germline mutations and experience/barriers for genetic testing in Afro-Caribbean Countries and US-Caribbean patients. Our results highlight countries where genetic landscapes remain severely understudied and support recommending multigene testing in Caribbean-born patients. They highlight a need for further research on the genetic paradigm of HBOC in the Afro-Caribbean population to improve genetic testing/counseling and the subsequent adoption of early detection and risk reduction strategies.
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Affiliation(s)
- Danielle Cerbon
- Sylvester Comprehensive Cancer Center, Department of Radiation Oncology. University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Daphanie Taylor
- Christus St. Michael W. Temple Webber Cancer Center, Texarkana, TX
| | - Priscila Barreto-Coelho
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Estelamari Rodriguez
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Matthew Schlumbrecht
- Division of Gynecology Oncology, Department of Obstetrics and Gynecology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Judith Hurley
- Division of Medical Oncology, Department of Medicine, University of Miami/Jackson Memorial Hospital, Miami, FL, USA
| | - Sophia H L George
- Sylvester Comprehensive Cancer Center, Miami, FL, USA; Division of Gynecology Oncology, Department of Obstetrics and Gynecology, Miller School of Medicine, University of Miami, Miami, FL, USA
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4
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Noreen S, Ballard D, Mehmood T, Khan A, Khalid T, Rakha A. Evaluation of loci to predict ear morphology using two SNaPshot assays. Forensic Sci Med Pathol 2023; 19:335-356. [PMID: 36401782 PMCID: PMC10518297 DOI: 10.1007/s12024-022-00545-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 11/21/2022]
Abstract
Human ear morphology prediction with SNP-based genotypes is growing in forensic DNA phenotyping and is scarcely explored in Pakistan as a part of EVCs (externally visible characteristics). The ear morphology prediction assays with 21 SNPs were assessed for their potential utility in forensic identification of population. The SNaPshot™ multiplex chemistries, capillary electrophoresis methods and GeneMapper™ software were used for obtaining genotypic data. A total of 33 ear phenotypes were categorized with digital photographs of 300 volunteers. SHEsis software was applied to make LD plot. Ordinal and multinomial logistic regression was implemented for association testing. Multinomial logistic regression was executed to construct the prediction model in 90% training and 10% testing subjects. Several influential SNPs for ear phenotypic variation were found in association testing. The model based on genetic markers predicted ear phenotypes with moderate to good predictive accuracies demonstrated with the area under curve (AUC), sensitivity and specificity of predicted phenotypes. As an additional EVC, the estimated ear phenotypic profiles have the possibility of determining the human ear morphology differences in unknown biological samples found in crimes that do not result in a criminal database hit. Furthermore, this can help in facial reconstruction and act as an investigational lead.
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Affiliation(s)
- Saadia Noreen
- Department of Forensic Sciences, University of Health Sciences, Lahore, 54600 Pakistan
- King’s Forensics, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, London, UK
| | - David Ballard
- King’s Forensics, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, London, UK
| | - Tahir Mehmood
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, H-12 Pakistan
| | - Arif Khan
- Genomics Group, Faculty of Biosciences and Aquaculture, Nord University, 8049 Bodø, Norway
| | - Tanveer Khalid
- Department of Human Genetics and Molecular Biology, University of Health Sciences, Lahore, 54600 Pakistan
| | - Allah Rakha
- Department of Forensic Sciences, University of Health Sciences, Lahore, 54600 Pakistan
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5
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Lake J, Warly Solsberg C, Kim JJ, Acosta-Uribe J, Makarious MB, Li Z, Levine K, Heutink P, Alvarado CX, Vitale D, Kang S, Gim J, Lee KH, Pina-Escudero SD, Ferrucci L, Singleton AB, Blauwendraat C, Nalls MA, Yokoyama JS, Leonard HL. Multi-ancestry meta-analysis and fine-mapping in Alzheimer's disease. Mol Psychiatry 2023; 28:3121-3132. [PMID: 37198259 PMCID: PMC10615750 DOI: 10.1038/s41380-023-02089-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 05/19/2023]
Abstract
Genome-wide association studies (GWAS) of Alzheimer's disease are predominantly carried out in European ancestry individuals despite the known variation in genetic architecture and disease prevalence across global populations. We leveraged published GWAS summary statistics from European, East Asian, and African American populations, and an additional GWAS from a Caribbean Hispanic population using previously reported genotype data to perform the largest multi-ancestry GWAS meta-analysis of Alzheimer's disease and related dementias to date. This method allowed us to identify two independent novel disease-associated loci on chromosome 3. We also leveraged diverse haplotype structures to fine-map nine loci with a posterior probability >0.8 and globally assessed the heterogeneity of known risk factors across populations. Additionally, we compared the generalizability of multi-ancestry- and single-ancestry-derived polygenic risk scores in a three-way admixed Colombian population. Our findings highlight the importance of multi-ancestry representation in uncovering and understanding putative factors that contribute to risk of Alzheimer's disease and related dementias.
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Affiliation(s)
- Julie Lake
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Caroline Warly Solsberg
- Pharmaceutical Sciences and Pharmacogenomics, University of California, San Francisco, San Francisco, CA, USA
- Department of Neurology and Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Jonggeol Jeffrey Kim
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Preventive Neurology Unit, Centre for Prevention Diagnosis and Detection, Wolfson Institute of Population Health, Queen Mary University of London, London, UK
| | - Juliana Acosta-Uribe
- Neuroscience Research Institute and the department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, USA
- Neuroscience Group of Antioquia, University of Antioquia, Medellín, Colombia
| | - Mary B Makarious
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
- UCL Movement Disorders Centre, University College London, London, UK
| | - Zizheng Li
- Pharmaceutical Sciences and Pharmacogenomics, University of California, San Francisco, San Francisco, CA, USA
- Department of Neurology and Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
| | - Kristin Levine
- Data Tecnica International LLC, Washington, DC, USA
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
| | - Peter Heutink
- Alector, Inc. 131 Oyster Point Blvd, Suite 600, South San Francisco, CA, 94080, USA
| | - Chelsea X Alvarado
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International LLC, Washington, DC, USA
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
| | - Dan Vitale
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International LLC, Washington, DC, USA
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
| | - Sarang Kang
- Gwangju Alzheimer's disease and Related Dementia Cohort Research Center, Chosun University, Gwangju, 61452, Korea
- BK FOUR Department of Integrative Biological Sciences, Chosun University, Gwangju, 61452, Korea
| | - Jungsoo Gim
- Gwangju Alzheimer's disease and Related Dementia Cohort Research Center, Chosun University, Gwangju, 61452, Korea
- BK FOUR Department of Integrative Biological Sciences, Chosun University, Gwangju, 61452, Korea
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Korea
| | - Kun Ho Lee
- Gwangju Alzheimer's disease and Related Dementia Cohort Research Center, Chosun University, Gwangju, 61452, Korea
- BK FOUR Department of Integrative Biological Sciences, Chosun University, Gwangju, 61452, Korea
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Korea
- Korea Brain Research Institute, Daegu, 41062, Korea
| | - Stefanie D Pina-Escudero
- Pharmaceutical Sciences and Pharmacogenomics, University of California, San Francisco, San Francisco, CA, USA
- Department of Neurology and Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
| | - Luigi Ferrucci
- Longitudinal Studies Section, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Andrew B Singleton
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
| | - Cornelis Blauwendraat
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
- Integrative Neurogenomics Unit, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Mike A Nalls
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
- Data Tecnica International LLC, Washington, DC, USA
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA
| | - Jennifer S Yokoyama
- Pharmaceutical Sciences and Pharmacogenomics, University of California, San Francisco, San Francisco, CA, USA
- Department of Neurology and Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA
- Memory and Aging Center, University of California, San Francisco, San Francisco, CA, USA
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Hampton L Leonard
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA.
- Data Tecnica International LLC, Washington, DC, USA.
- Center for Alzheimer's and Related Dementias, National Institutes of Health, Bethesda, MD, USA.
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany.
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Tal MG, Keidar R, Magnazi G, Henn O, Kim JH, Chudnoff SG, Stepp KJ. Pressure-Induced Fibroid Ischemia: First-In-Human Experience with a Novel Device for Laparoscopic Treatment of Symptomatic Uterine Fibroids. Reprod Sci 2023; 30:1366-1375. [PMID: 35941511 PMCID: PMC9360636 DOI: 10.1007/s43032-022-01033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 07/04/2022] [Indexed: 11/29/2022]
Abstract
The purpose of this study was to assess the feasibility of use of a novel uterine fibroid treatment device hypothesized to cause fibroid infarction by increasing intra-tumoral pressure. Between August 2019 and January 2020, 21 uterine fibroids were treated in 16 symptomatic pre-menopausal black women. Pelvic magnetic resonance imaging was performed before the procedure, a day after the procedure and at 1, 3, 6, and 12 months. The subjects were also followed for clinical outcomes and quality of life up to 12 months at a single investigational site. At 3 months, the mean reduction in the fibroid volume was 36.3% (P = .002). Incremental reduction in volume peaked at the end of the follow-up, at the 12-month mark (60.4%; P = .008). There were no procedures in which the users failed to perform laparoscopic pressure suturing of fibroids with the pressure-induced fibroid ischemia device. Improvement in the quality of life was evident in the Health-Related Quality of Life total, Energy/Mood, Control, and Sexual Function domains of the Uterine Fibroid Symptom and Quality of Life questionnaire at 3 months post-procedure. Unanticipated risks were not identified. Serious adverse events were not identified. The initial clinical assessment of the pressure-induced fibroid ischemia device supports feasibility of the approach and does not reveal serious safety concerns. Trial is currently being registered retrospectively (This was a feasibility study and therefore registration was not mandatory).
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Affiliation(s)
- Michael G Tal
- Division of Interventional Radiology, Hadassah Medical Center, Jerusalem, Israel.
| | - Ran Keidar
- Department of Obstetrics and Gynecology, E. Wolfson Medical Center, Holon, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | | | - Ohad Henn
- Empress Medical Ltd., Tel Aviv, Israel
| | - Jin Hee Kim
- Department of Obstetrics & Gynecology, Columbia University, New York, NY, USA
| | - Scott G Chudnoff
- Obstetrics and Gynecology, Maimonides Medical Center, New York, NY, USA
| | - Kevin J Stepp
- Atrium Health Women's Care Urogynecology and Pelvic Surgery, Atrium Health, Charlotte, NC, USA
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Effects of Maternal Gut Microbiota-Targeted Therapy on the Programming of Nonalcoholic Fatty Liver Disease in Dams and Fetuses, Related to a Prenatal High-Fat Diet. Nutrients 2022; 14:nu14194004. [PMID: 36235659 PMCID: PMC9573493 DOI: 10.3390/nu14194004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
Metabolic disorders can start in utero. Maternal transmission of metabolic phenotypes may increase the risks of adverse metabolic outcomes, such as nonalcoholic fatty liver disease (NAFLD); effective intervention is essential to prevent this. The gut microbiome plays a crucial role in fat storage, energy metabolism, and NAFLD. We investigated the therapeutic use of probiotic Lactobacillus reuteri and postbiotic butyrate gestation in the prevention of perinatal high-fat diet-induced programmed hepatic steatosis in the offspring of pregnant Sprague–Dawley rats who received regular chow or a high-fat (HF) diet 8 weeks before mating. L. reuteri or sodium butyrate was administered via oral gavage to the gestated rats until their sacrifice on day 21 of gestation. Both treatments improved liver steatosis in pregnant dams; L. reuteri had a superior effect. L. reuteri ameliorated obesity and altered the metabolic profiles of obese gravid dams. Maternal L. reuteri therapy prevented maternal HF diet-induced fetal liver steatosis, and reformed placental remodeling and oxidative injury. Probiotic therapy can restore lipid dysmetabolism in the fetal liver, modulate nutrient-sensing molecules in the placenta, and mediate the short-chain fatty acid signaling cascade. The therapeutic effects of maternal L. reuteri on maternal NAFLD and NAFLD reprogramming in offspring should be validated for further clinical translation.
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Silva MACE, Ferraz T, Hünemeier T. A genomic perspective on South American human history. Genet Mol Biol 2022; 45:e20220078. [PMID: 35925590 PMCID: PMC9351327 DOI: 10.1590/1678-4685-gmb-2022-0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 03/31/2022] [Indexed: 11/22/2022] Open
Abstract
It has generally been accepted that the current indigenous peoples of the Americas are derived from ancestors from northeastern Asia. The latter were believed to have spread into the American continent by the end of the Last Glacial Maximum. In this sense, a joint and in-depth study of the earliest settlement of East Asia and the Americas is required to elucidate these events accurately. The first Americans underwent an adaptation process to the Americas' vast environmental diversity, mediated by biological and cultural evolution and niche construction, resulting in enormous cultural diversity, a wealth of domesticated species, and extensive landscape modifications. Afterward, in the Late Holocene, the advent of intensive agricultural food production systems, sedentism, and climate change significantly reshaped genetic and cultural diversity across the continent, particularly in the Andes and Amazonia. Furthermore, starting around the end of the 15th century, European colonization resulted in massive extermination of indigenous peoples and extensive admixture. Thus, the present review aims to create a comprehensive picture of the main events involved in the formation of contemporary South American indigenous populations and the dynamics responsible for shaping their genetic diversity by integrating current genetic data with evidence from archeology, linguistics and other disciplines.
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Affiliation(s)
- Marcos Araújo Castro E Silva
- Universidade de São Paulo, Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Tiago Ferraz
- Universidade de São Paulo, Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
| | - Tábita Hünemeier
- Universidade de São Paulo, Instituto de Biociências, Departamento de Genética e Biologia Evolutiva, São Paulo, SP, Brazil
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Collen EJ, Johar AS, Teixeira JC, Llamas B. The immunogenetic impact of European colonization in the Americas. Front Genet 2022; 13:918227. [PMID: 35991555 PMCID: PMC9388791 DOI: 10.3389/fgene.2022.918227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
The introduction of pathogens originating from Eurasia into the Americas during early European contact has been associated with high mortality rates among Indigenous peoples, likely contributing to their historical and precipitous population decline. However, the biological impacts of imported infectious diseases and resulting epidemics, especially in terms of pathogenic effects on the Indigenous immunity, remain poorly understood and highly contentious to this day. Here, we examine multidisciplinary evidence underpinning colonization-related immune genetic change, providing contextualization from anthropological studies, paleomicrobiological evidence of contrasting host-pathogen coevolutionary histories, and the timings of disease emergence. We further summarize current studies examining genetic signals reflecting post-contact Indigenous population bottlenecks, admixture with European and other populations, and the putative effects of natural selection, with a focus on ancient DNA studies and immunity-related findings. Considering current genetic evidence, together with a population genetics theoretical approach, we show that post-contact Indigenous immune adaptation, possibly influenced by selection exerted by introduced pathogens, is highly complex and likely to be affected by multifactorial causes. Disentangling putative adaptive signals from those of genetic drift thus remains a significant challenge, highlighting the need for the implementation of population genetic approaches that model the short time spans and complex demographic histories under consideration. This review adds to current understandings of post-contact immunity evolution in Indigenous peoples of America, with important implications for bettering our understanding of human adaptation in the face of emerging infectious diseases.
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Affiliation(s)
- Evelyn Jane Collen
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- *Correspondence: Evelyn Jane Collen, ; Bastien Llamas,
| | - Angad Singh Johar
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- School of Mathematics and Statistics, The University of Melbourne, Parkville, VIC, Australia
| | - João C. Teixeira
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- School of Culture History and Language, The Australian National University, Canberra, ACT, Australia
- Centre of Excellence for Australian Biodiversity and Heritage (CABAH), School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Bastien Llamas
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- Centre of Excellence for Australian Biodiversity and Heritage (CABAH), School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- National Centre for Indigenous Genomics, Australian National University, Canberra, ACT, Australia
- Telethon Kids Institute, Indigenous Genomics Research Group, Adelaide, SA, Australia
- *Correspondence: Evelyn Jane Collen, ; Bastien Llamas,
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10
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da Cruz PRS, Ananina G, Secolin R, Gil-da-Silva-Lopes VL, Lima CSP, de França PHC, Donatti A, Lourenço GJ, de Araujo TK, Simioni M, Lopes-Cendes I, Costa FF, de Melo MB. Demographic history differences between Hispanics and Brazilians imprint haplotype features. G3 GENES|GENOMES|GENETICS 2022; 12:6576632. [PMID: 35511163 PMCID: PMC9258545 DOI: 10.1093/g3journal/jkac111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/27/2022] [Indexed: 11/24/2022]
Abstract
Admixture is known to greatly impact the genetic landscape of a population and, while genetic variation underlying human phenotypes has been shown to differ among populations, studies on admixed subjects are still scarce. Latin American populations are the result of complex demographic history, such as 2 or 3-way admixing events, bottlenecks and/or expansions, and adaptive events unique to the American continent. To explore the impact of these events on the genetic structure of Latino populations, we evaluated the following haplotype features: linkage disequilibrium, shared identity by descent segments, runs of homozygosity, and extended haplotype homozygosity (integrated haplotype score) in Latinos represented in the 1000 Genome Project along with array data from 171 Brazilians sampled in the South and Southeast regions of Brazil. We found that linkage disequilibrium decay relates to the amount of American and African ancestry. The extent of identity by descent sharing positively correlates with historical effective population sizes, which we found to be steady or growing, except for Puerto Ricans and Colombians. Long runs of homozygosity, a particular instance of autozygosity, was only enriched in Peruvians and Native Americans. We used simulations to account for random sampling and linkage disequilibrium to filter positive selection indexes and found 244 unique markers under selection, 26 of which are common to 2 or more populations. Some markers exhibiting positive selection signals had estimated time to the most recent common ancestor consistent with human adaptation to the American continent. In conclusion, Latino populations present highly divergent haplotype characteristics that impact genetic architecture and underlie complex phenotypes.
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Affiliation(s)
- Pedro Rodrigues Sousa da Cruz
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas—UNICAMP , Campinas, SP 13083-875, Brazil
| | - Galina Ananina
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas—UNICAMP , Campinas, SP 13083-875, Brazil
| | - Rodrigo Secolin
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
- The Brazilian Institute of Neuroscience and Neurotechnology (BRAINN) , Campinas, SP 13083-887, Brazil
| | - Vera Lúcia Gil-da-Silva-Lopes
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
| | - Carmen Silvia Passos Lima
- Clinical Oncology Service, Department of Internal Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
| | | | - Amanda Donatti
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
- The Brazilian Institute of Neuroscience and Neurotechnology (BRAINN) , Campinas, SP 13083-887, Brazil
| | - Gustavo Jacob Lourenço
- Laboratory of Cancer Genetics, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
| | - Tânia Kawasaki de Araujo
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
| | - Milena Simioni
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
| | - Iscia Lopes-Cendes
- Department of Medical Genetics and Genomic Medicine, School of Medical Sciences, University of Campinas—UNICAMP , Campinas, SP 13083-887, Brazil
- The Brazilian Institute of Neuroscience and Neurotechnology (BRAINN) , Campinas, SP 13083-887, Brazil
| | - Fernando Ferreira Costa
- Hematology and Hemotherapy Center, University of Campinas—UNICAMP, Campinas, SP, 13083-878 , Brazil
| | - Mônica Barbosa de Melo
- Laboratory of Human Genetics, Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas—UNICAMP , Campinas, SP 13083-875, Brazil
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11
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Nores R, Tavella MP, Fabra M, Demarchi DA. Ancient DNA analysis reveals temporal and geographical patterns of mitochondrial diversity in pre-Hispanic populations from Central Argentina. Am J Hum Biol 2022; 34:e23733. [PMID: 35238427 DOI: 10.1002/ajhb.23733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/03/2022] [Accepted: 02/08/2022] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES The study of the ancient populations of Central Argentina has a crucial importance for our understanding of the evolutionary processes in the Southern Cone of South America, given its geographic position as a crossroads. Therefore, the aim of this study is to evaluate the temporal and geographical patterns of genetic variation among the groups that inhabited the current territory of Córdoba Province during the Middle and Late Holocene. METHODS We analyzed the mitochondrial haplogroups of 74 individuals and 46 Hypervariable Region I (HVR-I) sequences, both novel and previously reported, from archeological populations of the eastern Plains and western Sierras regions of the province of Córdoba. The HVR-I sequences were also compared with other ancient groups from Argentina and with present-day populations from Central Argentina by pairwise distance analysis and identification of shared haplotypes. RESULTS Significant differences in haplogroup and haplotype distributions between the two geographical regions were found. Sierras showed genetic affinities with certain ancient populations of Northwestern Argentina, while Plains resembled its neighbors from Santiago del Estero Province and the Pampas region. We did not observe genetic differences among the pre 1200 and post 1200 yBP temporal subsets of individuals defined by the emergence of horticulture, considering both geographical samples jointly. CONCLUSIONS The observed patterns of geographical heterogeneity could indicate the existence of biologically distinct populations inhabiting the mountainous region and the eastern plains of Córdoba Province in pre-Hispanic times. Maternal lineages analyses support a scenario of local evolution with great temporal depth in Central Argentina, with continuity until the present.
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Affiliation(s)
- Rodrigo Nores
- Universidad Nacional de Córdoba, Facultad de Filosofía y Humanidades, Departamento de Antropología, Córdoba, Argentina.,CONICET, Instituto de Antropología de Córdoba (IDACOR), Córdoba, Argentina
| | - María Pía Tavella
- Universidad Nacional de Córdoba, Facultad de Filosofía y Humanidades, Departamento de Antropología, Córdoba, Argentina.,CONICET, Instituto de Antropología de Córdoba (IDACOR), Córdoba, Argentina
| | - Mariana Fabra
- Universidad Nacional de Córdoba, Facultad de Filosofía y Humanidades, Departamento de Antropología, Córdoba, Argentina.,CONICET, Instituto de Antropología de Córdoba (IDACOR), Córdoba, Argentina
| | - Darío A Demarchi
- Universidad Nacional de Córdoba, Facultad de Filosofía y Humanidades, Departamento de Antropología, Córdoba, Argentina.,CONICET, Instituto de Antropología de Córdoba (IDACOR), Córdoba, Argentina
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12
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Granot-Hershkovitz E, Sun Q, Argos M, Zhou H, Lin X, Browning SR, Sofer T. AFA: Ancestry-specific allele frequency estimation in admixed populations: The Hispanic Community Health Study/Study of Latinos. HGG ADVANCES 2022; 3:100096. [PMID: 35300209 PMCID: PMC8920934 DOI: 10.1016/j.xhgg.2022.100096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 02/18/2022] [Indexed: 11/22/2022] Open
Abstract
Allele frequency estimates in admixed populations, such as Hispanics and Latinos, rely on the sample's specific admixture composition and thus may differ between two seemingly similar populations. However, ancestry-specific allele frequencies, i.e., pertaining to the ancestral populations of an admixed group, may be particularly useful for prioritizing genetic variants for genetic discovery and personalized genomic health. We developed a method, ancestry-specific allele frequency estimation in admixed populations (AFA), to estimate the frequencies of biallelic variants in admixed populations with an unlimited number of ancestries. AFA uses maximum-likelihood estimation by modeling the conditional probability of having an allele given proportions of genetic ancestries. It can be applied using either local ancestry interval proportions encompassing the variant (local-ancestry-specific allele frequency estimations in admixed populations [LAFAs]) or global proportions of genetic ancestries (global-ancestry-specific allele frequency estimations in admixed populations [GAFAs]), which are easier to compute and are more widely available. Simulations and comparisons to existing software demonstrated the high accuracy of the method. We implemented AFA on high-quality imputed data of ∼9,000 Hispanics and Latinos from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), an understudied, admixed population with three predominant continental ancestries: Amerindian, European, and African. Comparison of the European and African estimated frequencies to the respective gnomAD frequencies demonstrated high correlations (Pearson R2 = 0.97-0.99). We provide a genome-wide dataset of the estimated ancestry-specific allele frequencies for available variants with allele frequency between 5% and 95% in at least one of the three ancestral populations. Association analysis of Amerindian-enriched variants with cardiometabolic traits identified five loci associated with lipid traits in Hispanics and Latinos, demonstrating the utility of ancestry-specific allele frequencies in admixed populations.
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Affiliation(s)
- Einat Granot-Hershkovitz
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA 02115, USA,Department of Medicine, Harvard Medical School, Boston, MA 02115, USA,Corresponding author
| | - Quan Sun
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Maria Argos
- School of Public Health, The University of Illinois, Chicago, Chicago, IL 60612, USA
| | - Hufeng Zhou
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Xihong Lin
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Sharon R. Browning
- Department of Biostatistics, University of Washington, Seattle, WA 98105, USA
| | - Tamar Sofer
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA 02115, USA,Department of Medicine, Harvard Medical School, Boston, MA 02115, USA,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA,Corresponding author
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13
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Constantinescu AE, Mitchell RE, Zheng J, Bull CJ, Timpson NJ, Amulic B, Vincent EE, Hughes DA. A framework for research into continental ancestry groups of the UK Biobank. Hum Genomics 2022; 16:3. [PMID: 35093177 PMCID: PMC8800339 DOI: 10.1186/s40246-022-00380-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/18/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The UK Biobank is a large prospective cohort, based in the UK, that has deep phenotypic and genomic data on roughly a half a million individuals. Included in this resource are data on approximately 78,000 individuals with "non-white British ancestry." While most epidemiology studies have focused predominantly on populations of European ancestry, there is an opportunity to contribute to the study of health and disease for a broader segment of the population by making use of the UK Biobank's "non-white British ancestry" samples. Here, we present an empirical description of the continental ancestry and population structure among the individuals in this UK Biobank subset. RESULTS Reference populations from the 1000 Genomes Project for Africa, Europe, East Asia, and South Asia were used to estimate ancestry for each individual. Those with at least 80% ancestry in one of these four continental ancestry groups were taken forward (N = 62,484). Principal component and K-means clustering analyses were used to identify and characterize population structure within each ancestry group. Of the approximately 78,000 individuals in the UK Biobank that are of "non-white British" ancestry, 50,685, 6653, 2782, and 2364 individuals were associated to the European, African, South Asian, and East Asian continental ancestry groups, respectively. Each continental ancestry group exhibits prominent population structure that is consistent with self-reported country of birth data and geography. CONCLUSIONS Methods outlined here provide an avenue to leverage UK Biobank's deeply phenotyped data allowing researchers to maximize its potential in the study of health and disease in individuals of non-white British ancestry.
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Affiliation(s)
- Andrei-Emil Constantinescu
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
- School of Translational Health Sciences, University of Bristol, Bristol, UK
| | - Ruth E Mitchell
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
| | - Jie Zheng
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
| | - Caroline J Bull
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
- School of Translational Health Sciences, University of Bristol, Bristol, UK
| | - Nicholas J Timpson
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
| | - Borko Amulic
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Emma E Vincent
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK
- School of Translational Health Sciences, University of Bristol, Bristol, UK
| | - David A Hughes
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK.
- Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, UK.
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14
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Overview of the Americas’ First Peopling from a Patrilineal Perspective: New Evidence from the Southern Continent. Genes (Basel) 2022; 13:genes13020220. [PMID: 35205264 PMCID: PMC8871784 DOI: 10.3390/genes13020220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 12/24/2022] Open
Abstract
Uniparental genetic systems are unique sex indicators and complement the study of autosomal diversity by providing landmarks of human migrations that repeatedly shaped the structure of extant populations. Our knowledge of the variation of the male-specific region of the Y chromosome in Native Americans is still rather scarce and scattered, but by merging sequence information from modern and ancient individuals, we here provide a comprehensive and updated phylogeny of the distinctive Native American branches of haplogroups C and Q. Our analyses confirm C-MPB373, C-P39, Q-Z780, Q-M848, and Q-Y4276 as the main founding haplogroups and identify traces of unsuccessful (pre-Q-F1096) or extinct (C-L1373*, Q-YP4010*) Y-chromosome lineages, indicating that haplogroup diversity of the founder populations that first entered the Americas was greater than that observed in the Indigenous component of modern populations. In addition, through a diachronic and phylogeographic dissection of newly identified Q-M848 branches, we provide the first Y-chromosome insights into the early peopling of the South American hinterland (Q-BY104773 and Q-BY15730) and on overlying inland migrations (Q-BY139813).
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15
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Shirsekar G, Devos J, Latorre SM, Blaha A, Queiroz Dias M, González Hernando A, Lundberg DS, Burbano HA, Fenster CB, Weigel D. Multiple Sources of Introduction of North American Arabidopsis thaliana from across Eurasia. Mol Biol Evol 2021; 38:5328-5344. [PMID: 34499163 PMCID: PMC8662644 DOI: 10.1093/molbev/msab268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Large-scale movement of organisms across their habitable range, or migration, is an important evolutionary process that can shape genetic diversity and influence the adaptive spread of alleles. Although human migrations have been studied in great detail with modern and ancient genomes, recent anthropogenic influence on reducing the biogeographical constraints on the migration of nonnative species has presented opportunities in several study systems to ask the questions about how repeated introductions shape genetic diversity in the introduced range. We present an extensive overview of population structure of North American Arabidopsis thaliana by studying a set of 500 whole-genome sequenced and over 2,800 RAD-seq genotyped individuals in the context of global diversity represented by Afro-Eurasian genomes. We use methods based on haplotype and rare-allele sharing as well as phylogenetic modeling to identify likely sources of introductions of extant N. American A. thaliana from the native range in Africa and Eurasia. We find evidence of admixture among the introduced lineages having increased haplotype diversity and reduced mutational load. We also detect signals of selection in immune-system-related genes that may impart qualitative disease resistance to pathogens of bacterial and oomycete origin. We conclude that multiple introductions to a nonnative range can rapidly enhance the adaptive potential of a colonizing species by increasing haplotypic diversity through admixture. Our results lay the foundation for further investigations into the functional significance of admixture.
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Affiliation(s)
- Gautam Shirsekar
- Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - Jane Devos
- Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - Sergio M Latorre
- Max Planck Institute for Developmental Biology, Tübingen, Germany
- Centre for Life’s Origin and Evolution, University College London, London, United Kingdom
| | - Andreas Blaha
- Max Planck Institute for Developmental Biology, Tübingen, Germany
| | | | | | - Derek S Lundberg
- Max Planck Institute for Developmental Biology, Tübingen, Germany
| | - Hernán A Burbano
- Max Planck Institute for Developmental Biology, Tübingen, Germany
- Centre for Life’s Origin and Evolution, University College London, London, United Kingdom
| | - Charles B Fenster
- Oak Lake Field Station, Department of Natural Resource Management, South Dakota State University, Brookings, SD, USA
| | - Detlef Weigel
- Max Planck Institute for Developmental Biology, Tübingen, Germany
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16
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George SHL, Omotoso A, Pinto A, Mustapha A, Sanchez-Covarrubias AP, Umar UA, Umar AB, Oluwasola TA, Okolo CA, Anthony UU, Ukekwe FI, Bakari MA, Dahiru AMC, Abdullahi HI, Abimiku BA, Abdurrahman A, Usman A, Ahmed SA, Usman HA, Kabir A, Eleje GU, Chiemeka ME, Nzeribe E, Nweke I, Kadas S, Suleiman DE, Ekanem E, Uche UM, Paul J, Agwu UM, Edegbe FO, Anorlu RI, Banjo A, Ajenifuja KO, Fawole AA, Kazeem IOO, Magaji F, Silas O, Athanasius BP, Tamunomie NK, Bassey E, Abudu K, Ango IG, Abdullahi K, Lawal I, Kabir SA, Ekanem V, Ezeanochie M, Yahaya UR, Castillo MN, Bahall V, Chatrani V, Brambury I, Bowe S, Halliday D, Bruney G, Butler R, Ragin C, Odedina F, Chamala S, Schlumbrecht M, Audu B. An Assessment of Ovarian Cancer Histotypes Across the African Diaspora. Front Oncol 2021; 11:732443. [PMID: 34900682 PMCID: PMC8662547 DOI: 10.3389/fonc.2021.732443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/28/2021] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE Ovarian cancer in Black women is common in many West African countries but is relatively rare in North America. Black women have worse survival outcomes when compared to White women. Ovarian cancer histotype, diagnosis, and age at presentation are known prognostic factors for outcome. We sought to conduct a preliminary comparative assessment of these factors across the African diaspora. METHODS Patients diagnosed with ovarian cancer (all histologies) between June 2016-December 2019 in Departments of Pathology at 25 participating sites in Nigeria were identified. Comparative population-based data, inclusive of Caribbean-born Blacks (CBB) and US-born Blacks (USB), were additionally captured from the International Agency for Research on Cancer and Florida Cancer Data Systems. Histology, country of birth, and age at diagnosis data were collected and evaluated across the three subgroups: USB, CBB and Nigerians. Statistical analyses were done using chi-square and student's t-test with significance set at p<0.05. RESULTS Nigerians had the highest proportion of germ cell tumor (GCT, 11.5%) and sex-cord stromal (SCST, 16.2%) ovarian cancers relative to CBB and USB (p=0.001). CBB (79.4%) and USB (77.3%) women were diagnosed with a larger proportion of serous ovarian cancer than Nigerians (60.4%) (p<0.0001). Nigerians were diagnosed with epithelial ovarian cancers at the youngest age (51.7± 12.8 years) relative to USB (58.9 ± 15.0) and CBB (59.0± 13.0,p<0.001). Black women [CBB (25.2 ± 15.0), Nigerians (29.5 ± 15.1), and USB (33.9 ± 17.9)] were diagnosed with GCT younger than White women (35.4 ± 20.5, p=0.011). Black women [Nigerians (47.5 ± 15.9), USB (50.9 ± 18.3) and CBB (50.9 ± 18.3)] were also diagnosed with SCST younger than White women (55.6 ± 16.5, p<0.01). CONCLUSION There is significant variation in age of diagnosis and distribution of ovarian cancer histotype/diagnosis across the African diaspora. The etiology of these findings requires further investigation.
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Affiliation(s)
- Sophia H. L. George
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, United States
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
| | - Ayodele Omotoso
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Andre Pinto
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Aisha Mustapha
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, Gynecologic Oncology Unit, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
| | - Alex P. Sanchez-Covarrubias
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Usman Aliyu Umar
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Ali Bala Umar
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Timothy Abiola Oluwasola
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, Gynecological Oncology Unit, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Clement Abu Okolo
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Umeh Uchenna Anthony
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Nigeria Teaching Hospital Enugu, Enugu, Nigeria
| | - Francis Ikechukwu Ukekwe
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Nigeria Teaching Hospital Enugu, Enugu, Nigeria
| | - Maisaratu A. Bakari
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center Yola, Yola, Nigeria
| | - Aminu M. C. Dahiru
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center Yola, Yola, Nigeria
| | - Habiba Ibrahim Abdullahi
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Abuja Teaching Hospital, Gwagwalada, Nigeria
| | - Bawa Ahmed Abimiku
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Abuja Teaching Hospital, Gwagwalada, Nigeria
| | - Aisha Abdurrahman
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Federal Medical Centre Katsina, Katsina, Nigeria
| | - Asmau Usman
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Federal Medical Centre Katsina, Katsina, Nigeria
| | - Saad Aliyu Ahmed
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
| | - Hadiza Abdullahi Usman
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, University of Maiduguri Teaching Hospital, Maiduguri, Nigeria
| | - Abba Kabir
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, University of Maiduguri Teaching Hospital, Maiduguri, Nigeria
| | - George Uchenna Eleje
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
| | - Michael Emeka Chiemeka
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Anatomic Pathology and Forensic Medicine, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
| | - Emily Nzeribe
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center, Owerri, Nigeria
| | - Ikechukwu Nweke
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center, Owerri, Nigeria
| | - SaiduAbubakar Kadas
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | - Dauda E. Suleiman
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | - Etim Ekanem
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Pathology, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Umemmuo Maureen Uche
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, National Hospital, Abuja, Nigeria
| | - Jibrin Paul
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, National Hospital, Abuja, Nigeria
| | - Uzoma Maryrose Agwu
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Abakaliki, Nigeria
| | - Felix O. Edegbe
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Alex Ekwueme Federal University Teaching Hospital Abakaliki, Abakaliki, Nigeria
| | - Rose I. Anorlu
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Adekunbiola Banjo
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Lagos University Teaching Hospital, Lagos, Nigeria
| | - Kayode Olusegun Ajenifuja
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Obafemi Awolowo University Teaching Hospital, Ile-Ife, Nigeria
| | - Adegboyega Adisa Fawole
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, niversity of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Ibrahim O. O. Kazeem
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, niversity of Ilorin Teaching Hospital, Ilorin, Nigeria
| | - Francis Magaji
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Jos University Teaching Hospital, Jos, Nigeria
| | - Olugbenga Silas
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Jos University Teaching Hospital, Jos, Nigeria
| | - Boma Precious Athanasius
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Anatomical Pathology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Nyengidiki Kennedy Tamunomie
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynaecology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Emem Bassey
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Uyo Teaching Hospital, Uyo, Nigeria
| | - Kunle Abudu
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, University of Uyo Teaching Hospital, Uyo, Nigeria
| | - Ibrahim G. Ango
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, smanu Danfodiyo University Teaching Hospital Sokoto, Sokoto, Nigeria
| | - Kabiru Abdullahi
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, smanu Danfodiyo University Teaching Hospital Sokoto, Sokoto, Nigeria
| | - Ishak Lawal
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center - Birnin Kebbi, Birnin Kebbi, Nigeria
| | - Suleiman Aliyu Kabir
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology and Department of Pathology, Federal Medical Center - Birnin Kebbi, Birnin Kebbi, Nigeria
| | - Victor Ekanem
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Anatomic Pathology, University of Benin Teaching Hospital, Benin City, Nigeria
| | - Michael Ezeanochie
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, University of Benin Teaching Hospital, Benin City, Nigeria
| | - Usman Rahman Yahaya
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, Federal Teaching Hospital Gombe, Gombe, Nigeria
| | - Melissa Nicole Castillo
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Vishal Bahall
- Department of Gynecologic Oncology, University of West Indies, Port-of-Spain, Trinidad and Tobago
| | - Vikash Chatrani
- Faculty of Medical Sciences, Department of Gynecologic Oncology, University of West Indies-Cave Hill, Bridgetown, Barbados
| | - Ian Brambury
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Department of Obstetrics and Gynecology, University of West Indies-Mona, Kingston, Jamaica
| | - Saida Bowe
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Darron Halliday
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - George Bruney
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Raleigh Butler
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Princess Margaret Hospital, University of the West Indies, School of Clinical Medicine and Research, Nassau, Bahamas
| | - Camille Ragin
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA, United States
| | - Folakemi Odedina
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Department of Pharmacotherapy and Translational Research, University of Florida, Orlando, FL, United States
| | - Srikar Chamala
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Matthew Schlumbrecht
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, United States
- African Caribbean Cancer Consortium, Philadelphia, PA, United States
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
| | - Bala Audu
- Transatlantic Gynecologic Cancer Research Consortium, Bauchi, Nigeria
- Department of Obstetrics and Gynecology, University of Maiduguri Teaching Hospital, Maiduguri, Nigeria
- Department of Obstetrics and Gynecology, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
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17
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Keith MH, Flinn MV, Durbin HJ, Rowan TN, Blomquist GE, Taylor KH, Taylor JF, Decker JE. Genetic ancestry, admixture, and population structure in rural Dominica. PLoS One 2021; 16:e0258735. [PMID: 34731205 PMCID: PMC8565749 DOI: 10.1371/journal.pone.0258735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 10/04/2021] [Indexed: 12/23/2022] Open
Abstract
The Caribbean is a genetically diverse region with heterogeneous admixture compositions influenced by local island ecologies, migrations, colonial conflicts, and demographic histories. The Commonwealth of Dominica is a mountainous island in the Lesser Antilles historically known to harbor communities with unique patterns of migration, mixture, and isolation. This community-based population genetic study adds biological evidence to inform post-colonial narrative histories in a Dominican horticultural village. High density single nucleotide polymorphism data paired with a previously compiled genealogy provide the first genome-wide insights on genetic ancestry and population structure in Dominica. We assessed family-based clustering, inferred global ancestry, and dated recent admixture by implementing the fastSTRUCTURE clustering algorithm, modeling graph-based migration with TreeMix, assessing patterns of linkage disequilibrium decay with ALDER, and visualizing data from Dominica with Human Genome Diversity Panel references. These analyses distinguish family-based genetic structure from variation in African, European, and indigenous Amerindian admixture proportions, and analyses of linkage disequilibrium decay estimate admixture dates 5–6 generations (~160 years) ago. African ancestry accounts for the largest mixture components, followed by European and then indigenous components; however, our global ancestry inferences are consistent with previous mitochondrial, Y chromosome, and ancestry marker data from Dominica that show uniquely higher proportions of indigenous ancestry and lower proportions of African ancestry relative to known admixture in other French- and English-speaking Caribbean islands. Our genetic results support local narratives about the community’s history and founding, which indicate that newly emancipated people settled in the steep, dense vegetation along Dominica’s eastern coast in the mid-19th century. Strong genetic signals of post-colonial admixture and family-based structure highlight the localized impacts of colonial forces and island ecologies in this region, and more data from other groups are needed to more broadly inform on Dominica’s complex history and present diversity.
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Affiliation(s)
- Monica H. Keith
- Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America
- * E-mail: (MHK); (JED)
| | - Mark V. Flinn
- Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America
| | - Harly J. Durbin
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Troy N. Rowan
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
- Genomics Center for the Advancement of Agriculture, University of Tennessee Institute for Agriculture, Knoxville, Tennessee, United States of America
| | - Gregory E. Blomquist
- Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America
| | - Kristen H. Taylor
- Department of Anatomy and Pathological Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Jeremy F. Taylor
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
| | - Jared E. Decker
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, United States of America
- * E-mail: (MHK); (JED)
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18
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Johnson CC, Havstad SL, Ownby DR, Joseph CLM, Sitarik AR, Biagini Myers J, Gebretsadik T, Hartert TV, Khurana Hershey GK, Jackson DJ, Lemanske RF, Martin LJ, Zoratti EM, Visness CM, Ryan PH, Gold DR, Martinez FD, Miller RL, Seroogy CM, Wright AL, Gern JE. Pediatric asthma incidence rates in the United States from 1980 to 2017. J Allergy Clin Immunol 2021; 148:1270-1280. [PMID: 33964299 PMCID: PMC8631308 DOI: 10.1016/j.jaci.2021.04.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Few studies have examined longitudinal asthma incidence rates (IRs) from a public health surveillance perspective. OBJECTIVE Our aim was to calculate descriptive asthma IRs in children over time with consideration for demographics and parental asthma history. METHODS Data from 9 US birth cohorts were pooled into 1 population covering the period from 1980 to 2017. The outcome was earliest parental report of a doctor diagnosis of asthma. IRs per 1,000 person-years were calculated. RESULTS The racial/ethnic backgrounds of the 6,283 children studied were as follows: 55% European American (EA), 25.5% African American (AA), 9.5% Mexican-Hispanic American (MA) and 8.5% Caribbean-Hispanic American (CA). The average follow-up was 10.4 years (SD = 8.5 years; median = 8.4 years), totaling 65,291 person-years, with 1789 asthma diagnoses yielding a crude IR of 27.5 per 1,000 person-years (95% CI = 26.3-28.8). Age-specific rates were highest among children aged 0 to 4 years, notably from 1995 to 1999, with a decline in EA and MA children in 2000 to 2004 followed by a decline in AA and CA children in 2010 to 2014. Parental asthma history was associated with statistically significantly increased rates. IRs were similar and higher in AA and CA children versus lower but similar in EA and MA children. The differential rates by sex from birth through adolescence principally resulted from a decline in rates among males but relatively stable rates among females. CONCLUSIONS US childhood asthma IRs varied dramatically by age, sex, parental asthma history, race/ethnicity, and calendar year. Higher rates in the 0- to 4-year-olds group, particularly among AA/CA males with a parental history of asthma, as well as changes in rates over time and by demographic factors, suggest that asthma is driven by complex interactions between genetic susceptibility and variation in time-dependent environmental and social factors.
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Affiliation(s)
| | | | - Dennis R Ownby
- Division of Allergy and Immunology, Augusta University, Augusta, Ga
| | | | | | | | | | - Tina V Hartert
- Vanderbilt University School of Medicine, Nashville, Tenn
| | | | - Daniel J Jackson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Robert F Lemanske
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Lisa J Martin
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | | | - Patrick H Ryan
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Diane R Gold
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Mass; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass
| | - Fernando D Martinez
- Asthma and Airways Research Center, University of Arizona, Tucson, Ariz; Division of Pulmonary and Sleep Medicine, Department of Pediatrics, College of Medicine, University of Arizona, Tucson, Ariz
| | | | - Christine M Seroogy
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - Anne L Wright
- Asthma and Airways Research Center, University of Arizona, Tucson, Ariz; Division of Pulmonary and Sleep Medicine, Department of Pediatrics, College of Medicine, University of Arizona, Tucson, Ariz
| | - James E Gern
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wis
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19
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Ongaro L, Molinaro L, Flores R, Marnetto D, Capodiferro MR, Alarcón-Riquelme ME, Moreno-Estrada A, Mabunda N, Ventura M, Tambets K, Achilli A, Capelli C, Metspalu M, Pagani L, Montinaro F. Evaluating the Impact of Sex-Biased Genetic Admixture in the Americas through the Analysis of Haplotype Data. Genes (Basel) 2021; 12:genes12101580. [PMID: 34680976 PMCID: PMC8535939 DOI: 10.3390/genes12101580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 01/30/2023] Open
Abstract
A general imbalance in the proportion of disembarked males and females in the Americas has been documented during the Trans-Atlantic Slave Trade and the Colonial Era and, although less prominent, more recently. This imbalance may have left a signature on the genomes of modern-day populations characterised by high levels of admixture. The analysis of the uniparental systems and the evaluation of continental proportion ratio of autosomal and X chromosomes revealed a general sex imbalance towards males for European and females for African and Indigenous American ancestries. However, the consistency and degree of this imbalance are variable, suggesting that other factors, such as cultural and social practices, may have played a role in shaping it. Moreover, very few investigations have evaluated the sex imbalance using haplotype data, containing more critical information than genotypes. Here, we analysed genome-wide data for more than 5000 admixed American individuals to assess the presence, direction and magnitude of sex-biased admixture in the Americas. For this purpose, we applied two haplotype-based approaches, ELAI and NNLS, and we compared them with a genotype-based method, ADMIXTURE. In doing so, besides a general agreement between methods, we unravelled that the post-colonial admixture dynamics show higher complexity than previously described.
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Affiliation(s)
- Linda Ongaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
- Correspondence:
| | - Ludovica Molinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
| | - Rodrigo Flores
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
| | - Davide Marnetto
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
| | - Marco R. Capodiferro
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (M.R.C.); (A.A.)
| | - Marta E. Alarcón-Riquelme
- Department of Medical Genomics, GENYO, Centro Pfizer—Universidad de Granada—Junta de Andalucía de Genómica e Investigación Oncológica, Av de la Ilustración 114, Parque Tecnológico de la Salud (PTS), 18016 Granada, Spain;
| | - Andrés Moreno-Estrada
- National Laboratory of Genomics for Biodiversity (LANGEBIO), CINVESTAV, Irapuato, Guanajuato 36821, Mexico;
| | - Nedio Mabunda
- Instituto Nacional de Saúde, Distrito de Marracuene, Estrada Nacional N°1, Província de Maputo, Maputo 1120, Mozambique;
| | - Mario Ventura
- Department of Biology-Genetics, University of Bari, 70126 Bari, Italy;
| | - Kristiina Tambets
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
| | - Alessandro Achilli
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (M.R.C.); (A.A.)
| | - Cristian Capelli
- Department of Zoology, University of Oxford, Oxford OX1 3SZ, UK;
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
- Department of Biology, University of Padua, 35131 Padua, Italy
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010 Tartu, Estonia; (L.M.); (R.F.); (D.M.); (K.T.); (M.M.); (L.P.); (F.M.)
- Department of Biology-Genetics, University of Bari, 70126 Bari, Italy;
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20
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Ferreira JC, Alshamali F, Montinaro F, Cavadas B, Torroni A, Pereira L, Raveane A, Fernandes V. Projecting Ancient Ancestry in Modern-Day Arabians and Iranians: A Key Role of the Past Exposed Arabo-Persian Gulf on Human Migrations. Genome Biol Evol 2021; 13:6364187. [PMID: 34480555 PMCID: PMC8435661 DOI: 10.1093/gbe/evab194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
The Arabian Peninsula is strategic for investigations centered on the early structuring of modern humans in the wake of the out-of-Africa migration. Despite its poor climatic conditions for the recovery of ancient human DNA evidence, the availability of both genomic data from neighboring ancient specimens and informative statistical tools allow modeling the ancestry of local modern populations. We applied this approach to a data set of 741,000 variants screened in 291 Arabians and 78 Iranians, and obtained insightful evidence. The west-east axis was a strong forcer of population structure in the Peninsula, and, more importantly, there were clear continuums throughout time linking western Arabia with the Levant, and eastern Arabia with Iran and the Caucasus. Eastern Arabians also displayed the highest levels of the basal Eurasian lineage of all tested modern-day populations, a signal that was maintained even after correcting for a possible bias due to a recent sub-Saharan African input in their genomes. Not surprisingly, eastern Arabians were also the ones with highest similarity with Iberomaurusians, who were, so far, the best proxy for the basal Eurasians amongst the known ancient specimens. The basal Eurasian lineage is the signature of ancient non-Africans who diverged from the common European-eastern Asian pool before 50,000 years ago, prior to the later interbred with Neanderthals. Our results appear to indicate that the exposed basin of the Arabo-Persian Gulf was the possible home of basal Eurasians, a scenario to be further investigated by searching ancient Arabian human specimens.
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Affiliation(s)
- Joana C Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal.,ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Farida Alshamali
- Department of Forensic Sciences and Criminology, Dubai Police General Headquarters, Dubai, United Arab Emirates
| | - Francesco Montinaro
- Department of Biology-Genetics, University of Bari, Italy.,Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia
| | - Bruno Cavadas
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
| | - Antonio Torroni
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Italy
| | - Luisa Pereira
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
| | - Alessandro Raveane
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Italy.,Laboratory of Haematology-Oncology, European Institute of Oncology IRCCS, Milan, Italy
| | - Veronica Fernandes
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal.,IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Portugal
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21
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Warshauer EM, Brown A, Fuentes I, Shortt J, Gignoux C, Montinaro F, Metspalu M, Youssefian L, Vahidnezhad H, Jacków J, Christiano AM, Uitto J, Fajardo-Ramírez ÓR, Salas-Alanis JC, McGrath JA, Consuegra L, Rivera C, Maier PA, Runfeldt G, Behar DM, Skorecki K, Sprecher E, Palisson F, Norris DA, Bruckner AL, Kogut I, Bilousova G, Roop DR. Ancestral patterns of recessive dystrophic epidermolysis bullosa mutations in Hispanic populations suggest sephardic ancestry. Am J Med Genet A 2021; 185:3390-3400. [PMID: 34435747 DOI: 10.1002/ajmg.a.62456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/11/2021] [Accepted: 07/14/2021] [Indexed: 11/11/2022]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a rare genodermatosis caused by mutations in the gene coding for type VII collagen (COL7A1). More than 800 different pathogenic mutations in COL7A1 have been described to date; however, the ancestral origins of many of these mutations have not been precisely identified. In this study, 32 RDEB patient samples from the Southwestern United States, Mexico, Chile, and Colombia carrying common mutations in the COL7A1 gene were investigated to determine the origins of these mutations and the extent to which shared ancestry contributes to disease prevalence. The results demonstrate both shared European and American origins of RDEB mutations in distinct populations in the Americas and suggest the influence of Sephardic ancestry in at least some RDEB mutations of European origins. Knowledge of ancestry and relatedness among RDEB patient populations will be crucial for the development of future clinical trials and the advancement of novel therapeutics.
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Affiliation(s)
- Emily Mira Warshauer
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA.,Charles C. Gates Center for Regenerative Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Adam Brown
- Avotaynu Research Partnership LLC, Englewood, New Jersey, USA
| | - Ignacia Fuentes
- Centro de Genética y Genómica, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile.,Fundación DEBRA Chile, Santiago, Chile
| | - Jonathan Shortt
- Colorado Center for Personalized Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Chris Gignoux
- Colorado Center for Personalized Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia.,Department of Biology and Genetics, University of Bari, Bari, Italy
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Joanna Jacków
- Department of Dermatology, Columbia University, New York, New York, USA.,St. John's Institute of Dermatology, King's College London (Guy's Campus), London, UK
| | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, New York, USA.,Department of Genetics and Development, Columbia University, New York, New York, USA
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Óscar R Fajardo-Ramírez
- DEBRA Mexico, Azteca Guadalupe, Mexico.,Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Mexico
| | - Julio C Salas-Alanis
- DEBRA Mexico, Azteca Guadalupe, Mexico.,Instituto Dermatologico de Jalisco, Zapopan, Mexico
| | - John A McGrath
- St. John's Institute of Dermatology, King's College London (Guy's Campus), London, UK
| | | | - Carolina Rivera
- Fundación DEBRA Colombia, Bogotá, Colombia.,Department of Medical Genetics, Pediatric Hospital, Fundacion Cardioinfantil-Universidad del Rosario, Bogotá, Colombia
| | - Paul A Maier
- Gene by Gene, Genomic Research Center, Houston, Texas, USA
| | - Goran Runfeldt
- Gene by Gene, Genomic Research Center, Houston, Texas, USA
| | - Doron M Behar
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia.,Gene by Gene, Genomic Research Center, Houston, Texas, USA
| | - Karl Skorecki
- Azrieli Faculty of Medicine of the Galilee, Bar-Ilan University, Safed, Israel
| | - Eli Sprecher
- Department of Dermatology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Francis Palisson
- Fundación DEBRA Chile, Santiago, Chile.,Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - David A Norris
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA.,Charles C. Gates Center for Regenerative Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Anna L Bruckner
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Igor Kogut
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA.,Charles C. Gates Center for Regenerative Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ganna Bilousova
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA.,Charles C. Gates Center for Regenerative Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Dennis R Roop
- Department of Dermatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA.,Charles C. Gates Center for Regenerative Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado, USA
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22
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Ongaro L, Mondal M, Flores R, Marnetto D, Molinaro L, Alarcón-Riquelme ME, Moreno-Estrada A, Mabunda N, Ventura M, Tambets K, Hellenthal G, Capelli C, Kivisild T, Metspalu M, Pagani L, Montinaro F. Continental-scale genomic analysis suggests shared post-admixture adaptation in the Americas. Hum Mol Genet 2021; 30:2123-2134. [PMID: 34196708 PMCID: PMC8561420 DOI: 10.1093/hmg/ddab177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 01/05/2023] Open
Abstract
American populations are one of the most interesting examples of recently admixed groups, where ancestral components from three major continental human groups (Africans, Eurasians and Native Americans) have admixed within the last 15 generations. Recently, several genetic surveys focusing on thousands of individuals shed light on the geography, chronology and relevance of these events. However, even though gene flow could drive adaptive evolution, it is unclear whether and how natural selection acted on the resulting genetic variation in the Americas. In this study, we analysed the patterns of local ancestry of genomic fragments in genome-wide data for ~ 6000 admixed individuals from 10 American countries. In doing so, we identified regions characterized by a divergent ancestry profile (DAP), in which a significant over or under ancestral representation is evident. Our results highlighted a series of genomic regions with DAPs associated with immune system response and relevant medical traits, with the longest DAP region encompassing the human leukocyte antigen locus. Furthermore, we found that DAP regions are enriched in genes linked to cancer-related traits and autoimmune diseases. Then, analysing the biological impact of these regions, we showed that natural selection could have acted preferentially towards variants located in coding and non-coding transcripts and characterized by a high deleteriousness score. Taken together, our analyses suggest that shared patterns of post admixture adaptation occurred at a continental scale in the Americas, affecting more often functional and impactful genomic variants.
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Affiliation(s)
- Linda Ongaro
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Mayukh Mondal
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Rodrigo Flores
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Davide Marnetto
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Ludovica Molinaro
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Marta E Alarcón-Riquelme
- Department of Medical Genomics, GENYO. Centro Pfizer - Universidad de Granada - Junta de Andalucía de Genómica e Investigación Oncológica, Av de la Ilustración 114, Parque Tecnológico de la Salud (PTS), 18016, Granada, Spain
| | - Andrés Moreno-Estrada
- National Laboratory of Genomics for biodiversity (LANGEBIO), CINVESTAV, Irapuato, Guanajuato 36821, Mexico
| | - Nedio Mabunda
- Instituto Nacional de Saúde, Distrito de Marracuene, Estrada Nacional N°1, Província de Maputo, Maputo, 1120, Mozambique
| | - Mario Ventura
- Department of Biology-Genetics, University of Bari, Bari, 70126, Italy
| | - Kristiina Tambets
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Garrett Hellenthal
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Cristian Capelli
- Department of Zoology, University of Oxford, Oxford, UK.,Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy
| | - Toomas Kivisild
- Department of Human Genetics, KU Leuven, Herestraat 49 - box 602, B-3000, Leuven, Belgium
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia.,Department of Biology, University of Padua, Padua, Italy
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, Tartu, Riia 23b, 51010, Estonia.,Department of Biology-Genetics, University of Bari, Bari, 70126, Italy
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23
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Capodiferro MR, Aram B, Raveane A, Rambaldi Migliore N, Colombo G, Ongaro L, Rivera J, Mendizábal T, Hernández-Mora I, Tribaldos M, Perego UA, Li H, Scheib CL, Modi A, Gòmez-Carballa A, Grugni V, Lombardo G, Hellenthal G, Pascale JM, Bertolini F, Grieco GS, Cereda C, Lari M, Caramelli D, Pagani L, Metspalu M, Friedrich R, Knipper C, Olivieri A, Salas A, Cooke R, Montinaro F, Motta J, Torroni A, Martín JG, Semino O, Malhi RS, Achilli A. Archaeogenomic distinctiveness of the Isthmo-Colombian area. Cell 2021; 184:1706-1723.e24. [PMID: 33761327 PMCID: PMC8024902 DOI: 10.1016/j.cell.2021.02.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/20/2020] [Accepted: 02/18/2021] [Indexed: 01/09/2023]
Abstract
The recently enriched genomic history of Indigenous groups in the Americas is still meager concerning continental Central America. Here, we report ten pre-Hispanic (plus two early colonial) genomes and 84 genome-wide profiles from seven groups presently living in Panama. Our analyses reveal that pre-Hispanic demographic events contributed to the extensive genetic structure currently seen in the area, which is also characterized by a distinctive Isthmo-Colombian Indigenous component. This component drives these populations on a specific variability axis and derives from the local admixture of different ancestries of northern North American origin(s). Two of these ancestries were differentially associated to Pleistocene Indigenous groups that also moved into South America, leaving heterogenous genetic footprints. An additional Pleistocene ancestry was brought by a still unsampled population of the Isthmus (UPopI) that remained restricted to the Isthmian area, expanded locally during the early Holocene, and left genomic traces up to the present day.
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Affiliation(s)
| | - Bethany Aram
- Department of Geography, History and Philosophy, the Pablo de Olavide University of Seville, Seville 41013, Spain
| | - Alessandro Raveane
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy; Laboratory of Hematology-Oncology, European Institute of Oncology IRCCS, Milan 20141, Italy
| | - Nicola Rambaldi Migliore
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Giulia Colombo
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Linda Ongaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Javier Rivera
- Department of History and Social Sciences, Universidad del Norte, Barranquilla 080001, Colombia
| | - Tomás Mendizábal
- Patronato Panamá Viejo, Panama City 0823-05096, Panama; Coiba Scientific Station (COIBA AIP), City of Knowledge, Clayton 0843-03081, Panama
| | - Iosvany Hernández-Mora
- Department of History and Social Sciences, Universidad del Norte, Barranquilla 080001, Colombia
| | - Maribel Tribaldos
- Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, Panama
| | - Ugo Alessandro Perego
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Hongjie Li
- Department of Anthropology, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Christiana Lyn Scheib
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Alessandra Modi
- Department of Biology, University of Florence, Florence 50122, Italy
| | - Alberto Gòmez-Carballa
- Unidade de Xenética, Instituto de Ciencias Forenses (INCIFOR), Facultade de Medicina, Universidade de Santiago de Compostela, 15782 Galicia, Spain; GenPoB Research Group, Instituto de Investigación Sanitarias (IDIS), Hospital Clínico Universitario de Santiago de Compostela (SERGAS), 15706 Galicia, Spain
| | - Viola Grugni
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Gianluca Lombardo
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Garrett Hellenthal
- UCL Genetics Institute (UGI), Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Juan Miguel Pascale
- Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, Panama
| | - Francesco Bertolini
- Laboratory of Hematology-Oncology, European Institute of Oncology IRCCS, Milan 20141, Italy
| | | | - Cristina Cereda
- Genomic and Post-Genomic Center, National Neurological Institute C. Mondino, Pavia 27100, Italy
| | - Martina Lari
- Department of Biology, University of Florence, Florence 50122, Italy
| | - David Caramelli
- Department of Biology, University of Florence, Florence 50122, Italy
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Biology, University of Padua, Padua 35121, Italy
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Ronny Friedrich
- Curt Engelhorn Center Archaeometry (CEZA), Mannheim 68159, Germany
| | - Corina Knipper
- Curt Engelhorn Center Archaeometry (CEZA), Mannheim 68159, Germany
| | - Anna Olivieri
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Antonio Salas
- Unidade de Xenética, Instituto de Ciencias Forenses (INCIFOR), Facultade de Medicina, Universidade de Santiago de Compostela, 15782 Galicia, Spain; GenPoB Research Group, Instituto de Investigación Sanitarias (IDIS), Hospital Clínico Universitario de Santiago de Compostela (SERGAS), 15706 Galicia, Spain
| | - Richard Cooke
- Smithsonian Tropical Research Institute, Panama City 0843-03092, Panama; Sistema Nacional de Investigadores, Secretaría Nacional de Ciencia y Tecnología, Ciudad del Saber, Clayton 0816-02852, Panama
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Biology-Genetics, University of Bari, Bari 70125, Italy
| | - Jorge Motta
- Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, Panama
| | - Antonio Torroni
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Juan Guillermo Martín
- Department of History and Social Sciences, Universidad del Norte, Barranquilla 080001, Colombia; Coiba Scientific Station (COIBA AIP), City of Knowledge, Clayton 0843-03081, Panama
| | - Ornella Semino
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy
| | - Ripan Singh Malhi
- Department of Anthropology, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Alessandro Achilli
- Department of Biology and Biotechnology "L. Spallanzani," University of Pavia, Pavia 27100, Italy.
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24
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Eaaswarkhanth M, Pathak AK, Ongaro L, Montinaro F, Hebbar P, Alsmadi O, Metspalu M, Al-Mulla F, Thanaraj TA. Unraveling a fine-scale high genetic heterogeneity and recent continental connections of an Arabian Peninsula population. Eur J Hum Genet 2021; 30:307-319. [PMID: 33753911 PMCID: PMC8904638 DOI: 10.1038/s41431-021-00861-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/09/2021] [Accepted: 03/03/2021] [Indexed: 11/19/2022] Open
Abstract
Recent studies have showed the diverse genetic architecture of the highly consanguineous populations inhabiting the Arabian Peninsula. Consanguinity coupled with heterogeneity is complex and makes it difficult to understand the bases of population-specific genetic diseases in the region. Therefore, comprehensive genetic characterization of the populations at the finest scale is warranted. Here, we revisit the genetic structure of the Kuwait population by analyzing genome-wide single nucleotide polymorphisms data from 583 Kuwaiti individuals sorted into three subgroups. We envisage a diverse demographic genetic history among the three subgroups based on drift and allelic sharing with modern and ancient individuals. Furthermore, our comprehensive haplotype-based analyses disclose a high genetic heterogeneity among the Kuwaiti populations. We infer the major sources of ancestry within the newly defined groups; one with an obvious predominance of sub-Saharan/Western Africa mostly comprising Kuwait-B individuals, and other with West Eurasia including Kuwait-P and Kuwait-S individuals. Overall, our results recapitulate the historical population movements and reaffirm the genetic imprints of the legacy of continental trading in the region. Such deciphering of fine-scale population structure and their regional genetic heterogeneity would provide clues to the uncharted areas of disease-gene discovery and related associations in populations inhabiting the Arabian Peninsula.
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Affiliation(s)
| | - Ajai K Pathak
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia.,Department of Evolutionary Biology, Institute of Molecular and Cell Biology, Tartu, Estonia
| | - Linda Ongaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia.,Department of Evolutionary Biology, Institute of Molecular and Cell Biology, Tartu, Estonia
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia.,Department of Biology-Genetics, University of Bari, Bari, Italy
| | - Prashantha Hebbar
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait
| | - Osama Alsmadi
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait.,Department of Cell Therapy and Applied Genomics, King Hussein Cancer Center, Amman, Jordan
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait.
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25
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Molinaro L, Marnetto D, Mondal M, Ongaro L, Yelmen B, Lawson DJ, Montinaro F, Pagani L. A Chromosome-Painting-Based Pipeline to Infer Local Ancestry under Limited Source Availability. Genome Biol Evol 2021; 13:6135079. [PMID: 33585906 PMCID: PMC8085126 DOI: 10.1093/gbe/evab025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2021] [Indexed: 01/09/2023] Open
Abstract
Contemporary individuals are the combination of genetic fragments inherited from ancestors belonging to multiple populations, as the result of migration and admixture. Isolating and characterizing these layers are crucial to the understanding of the genetic history of a given population. Ancestry deconvolution approaches make use of a large amount of source individuals, therefore constraining the performance of Local Ancestry Inferences when only few genomes are available from a given population. Here we present WINC, a local ancestry framework derived from the combination of ChromoPainter and NNLS approaches, as a method to retrieve local genetic assignments when only a few reference individuals are available. The framework is aided by a score assignment based on source differentiation to maximize the amount of sequences retrieved and is capable of retrieving accurate ancestry assignments when only two individuals for source populations are used.
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Affiliation(s)
- Ludovica Molinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia.,Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - Davide Marnetto
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia
| | - Mayukh Mondal
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia
| | - Linda Ongaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia.,Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - Burak Yelmen
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia.,Institute of Molecular and Cell Biology, University of Tartu, Estonia
| | - Daniel John Lawson
- Medical Research Council Integrative Epidemiology Unit, Department of Population Health Sciences, Bristol Medical School, University of Bristol, United Kingdom
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia.,Department of Biology-Genetics, University of Bari, Italy
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, Estonia.,Department of Biology, University of Padova, Italy
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26
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Wheeler SE, Hasskamp JH, Peck Palmer OM. Recognizing Laboratory Medicine's Collaborative Role in Identifying and Eliminating Health Disparities. J Appl Lab Med 2020; 6:274-284. [PMID: 33221844 DOI: 10.1093/jalm/jfaa143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/03/2020] [Indexed: 01/24/2023]
Abstract
BACKGROUND A health disparity is a health outcome that presents in a lesser or greater extent between populations. Health disparities in diseases are products of complex interactions between social, economic, and to a lesser extent, biological factors and can be mediated by structural racism and discriminatory policies. The objective of this review is to understand how both laboratorians and nonlaboratorians think about the relationship between laboratory medicine and health disparities and to highlight ways in which laboratory medicine can play a role in eliminating health disparities. CONTENT We developed an electronic survey from which we selected the top responses reported by the 215 participants to frame a discussion around why laboratorians perceive health disparities exists, and how they can reduce health disparities. SUMMARY We found that both laboratorians and nonlaboratorians feel that laboratory medicine can and should play a role in reducing health disparities using many tools already in use in the clinical laboratory. The skills of laboratory workers in data generation, the establishment of reference ranges, control over the presentation of laboratory results, generation of test menus, and the development of novel diagnostics may impact health disparities. Laboratorians' responses in our survey indicated that they felt that they could reduce health disparities by using laboratory data to proactively track in cooperation with healthcare providers individuals with chronic conditions to prevent acute events, ensuring gender and ethnic diversity in new clinical trials, including appropriate curriculum in laboratory medicine training, using equations and reference intervals based on physiological differences and participating in unconscious bias training.
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Affiliation(s)
- Sarah E Wheeler
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Joanne H Hasskamp
- Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Octavia M Peck Palmer
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA.,Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
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27
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Pereira V, Santangelo R, Børsting C, Tvedebrink T, Almeida APF, Carvalho EF, Morling N, Gusmão L. Evaluation of the Precision of Ancestry Inferences in South American Admixed Populations. Front Genet 2020; 11:966. [PMID: 32973885 PMCID: PMC7472784 DOI: 10.3389/fgene.2020.00966] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/31/2020] [Indexed: 11/13/2022] Open
Abstract
Ancestry informative markers (AIMs) are used in forensic genetics to infer biogeographical ancestry (BGA) of individuals and may also have a prominent role in future police and identification investigations. In the last few years, many studies have been published reporting new AIM sets. These sets include markers (usually around 100 or less) selected with different purposes and different population resolutions. Regardless of the ability of these sets to separate populations from different continents or regions, the uncertainty associated with the estimates provided by these panels and their capacity to accurately report the different ancestral contributions in individuals of admixed populations has rarely been investigated. This issue is addressed in this study by evaluating different AIM sets. Ancestry inference was carried out in admixed South American populations, both at population and individual levels. The results of ancestry inferences using AIM sets with different numbers of markers among admixed reference populations were compared. To evaluate the performance of the different ancestry panels at the individual level, expected and observed estimates among families and their offspring were compared, considering that (1) the apportionment of ancestry in the offspring should be closer to the average ancestry of the parents, and (2) full siblings should present similar ancestry values. The results obtained illustrate the importance of having a good balance/compromise between not only the number of markers and their ability to differentiate ancestral populations, but also a balanced differentiation among reference groups, to obtain more precise values of genetic ancestry. This work also highlights the importance of estimating errors associated with the use of a limited number of markers. We demonstrate that although these errors have a moderate effect at the population level, they may have an important impact at the individual level. Considering that many AIM-sets are being described for inferences at the individual level and not at the population level, e.g., in association studies or the determination of a suspect's BGA, the results of this work point to the need of a more careful evaluation of the uncertainty associated with the ancestry estimates in admixed populations, when small AIM-sets are used.
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Affiliation(s)
- Vania Pereira
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Roberta Santangelo
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Claus Børsting
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Torben Tvedebrink
- Department of Mathematical Sciences, Aalborg University, Aalborg, Denmark
| | - Ana Paula F Almeida
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Elizeu F Carvalho
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Niels Morling
- Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Leonor Gusmão
- DNA Diagnostic Laboratory, State University of Rio de Janeiro, Rio de Janeiro, Brazil.,Instituto de Investigação e Inovação em Saúde, i3S, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal
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28
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Mas-Sandoval A, Arauna LR, Gouveia MH, Barreto ML, Horta BL, Lima-Costa MF, Pereira AC, Salzano FM, Hünemeier T, Tarazona-Santos E, Bortolini MC, Comas D. Reconstructed Lost Native American Populations from Eastern Brazil Are Shaped by Differential Jê/Tupi Ancestry. Genome Biol Evol 2020; 11:2593-2604. [PMID: 31328768 PMCID: PMC6756188 DOI: 10.1093/gbe/evz161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2019] [Indexed: 01/19/2023] Open
Abstract
After the colonization of the Americas by Europeans and the consequent Trans-Atlantic Slave Trade, most Native American populations in eastern Brazil disappeared or went through an admixture process that configured a population composed of three main genetic components: the European, the sub-Saharan African, and the Native American. The study of the Native American genetic history is challenged by the lack of availability of genome-wide samples from Native American populations, the technical difficulties to develop ancient DNA studies, and the low proportions of the Native American component in the admixed Brazilian populations (on average 7%). We analyzed genome-wide data of 5,825 individuals from three locations of eastern Brazil: Salvador (North-East), Bambui (South-East), and Pelotas (South) and we reconstructed populations that emulate the Native American groups that were living in the 16th century around the sampling locations. This genetic reconstruction was performed after local ancestry analysis of the admixed Brazilian populations, through the rearrangement of the Native American haplotypes into reconstructed individuals with full Native American ancestry (51 reconstructed individuals in Salvador, 45 in Bambui, and 197 in Pelotas). We compared the reconstructed populations with nonadmixed Native American populations from other regions of Brazil through haplotype-based methods. Our results reveal a population structure shaped by the dichotomy of Tupi-/Jê-speaking ancestry related groups. We also show evidence of a decrease of the diversity of nonadmixed Native American groups after the European contact, in contrast with the reconstructed populations, suggesting a reservoir of the Native American genetic diversity within the admixed Brazilian population.
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Affiliation(s)
- Alex Mas-Sandoval
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Lara R Arauna
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Mateus H Gouveia
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Center for Research on Genomics and Global Health, National Institutes of Health, Bethesda, Maryland
| | - Mauricio L Barreto
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Bahia, Brazil.,Center for Data and Knowledge Integration for Health, Institute Gonçalo Muniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil
| | - Bernardo L Horta
- Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, Rio Grande do Sul, Brazil
| | | | | | - Francisco M Salzano
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Tábita Hünemeier
- Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo, São Paulo, Brazil
| | - Eduardo Tarazona-Santos
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Maria Cátira Bortolini
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - David Comas
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
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29
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Dai CL, Vazifeh MM, Yeang CH, Tachet R, Wells RS, Vilar MG, Daly MJ, Ratti C, Martin AR. Population Histories of the United States Revealed through Fine-Scale Migration and Haplotype Analysis. Am J Hum Genet 2020; 106:371-388. [PMID: 32142644 PMCID: PMC7058830 DOI: 10.1016/j.ajhg.2020.02.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 02/05/2020] [Indexed: 12/11/2022] Open
Abstract
The population of the United States is shaped by centuries of migration, isolation, growth, and admixture between ancestors of global origins. Here, we assemble a comprehensive view of recent population history by studying the ancestry and population structure of more than 32,000 individuals in the US using genetic, ancestral birth origin, and geographic data from the National Geographic Genographic Project. We identify migration routes and barriers that reflect historical demographic events. We also uncover the spatial patterns of relatedness in subpopulations through the combination of haplotype clustering, ancestral birth origin analysis, and local ancestry inference. Examples of these patterns include substantial substructure and heterogeneity in Hispanics/Latinos, isolation-by-distance in African Americans, elevated levels of relatedness and homozygosity in Asian immigrants, and fine-scale structure in European descents. Taken together, our results provide detailed insights into the genetic structure and demographic history of the diverse US population.
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Affiliation(s)
- Chengzhen L Dai
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Mohammad M Vazifeh
- Senseable City Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Chen-Hsiang Yeang
- Institute of Statistical Science, Academia Sinica, Nankang, Taipei, Taiwan
| | - Remi Tachet
- Senseable City Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Miguel G Vilar
- Genographic Project, National Geographic Society, Washington, DC 20036, USA
| | - Mark J Daly
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland; Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Carlo Ratti
- Senseable City Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Alicia R Martin
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA.
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30
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Leong JY, Capella C, Teplitsky S, Gomella LG, Trabulsi EJ, Lallas CD, Chandrasekar T. Impact of Tumor Regional Involvement on Active Surveillance Outcomes: Validation of the Cumulative Cancer Location Metric in a US Population. Eur Urol Focus 2020; 6:235-241. [DOI: 10.1016/j.euf.2019.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/10/2019] [Accepted: 05/03/2019] [Indexed: 12/11/2022]
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31
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Ahsan T, Urmi NJ, Sajib AA. Heterogeneity in the distribution of 159 drug-response related SNPs in world populations and their genetic relatedness. PLoS One 2020; 15:e0228000. [PMID: 31971968 PMCID: PMC6977754 DOI: 10.1371/journal.pone.0228000] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/03/2020] [Indexed: 12/25/2022] Open
Abstract
Interethnic variability in drug response arises from genetic differences associated with drug metabolism, action and transport. These genetic variations can affect drug efficacy as well as cause adverse drug reactions (ADRs). We retrieved drug-response related single nucleotide polymorphism (SNP) associated data from databases and analyzed to elucidate population specific distribution of 159 drug-response related SNPs in twenty six populations belonging to five super-populations (African, Admixed Americans, East Asian, European and South Asian). Significant interpopulation differences exist in the minor (variant) allele frequencies (MAFs), linkage disequilibrium (LD) and haplotype distributions among these populations. 65 of the drug-response related alleles, which are considered as minor (variant) in global population, are present as the major alleles (frequency ≥0.5) in at least one or more populations. Populations that belong to the same super-population have similar distribution pattern for majority of the variant alleles. These drug response related variant allele frequencies and their pairwise LD measure (r2) can clearly distinguish the populations in a way that correspond to the known evolutionary history of human and current geographic distributions, while D' cannot. The data presented here may aid in identifying drugs that are more appropriate and/or require pharmacogenetic testing in these populations. Our findings emphasize on the importance of distinct, ethnicity-specific clinical guidelines, especially for the African populations, to avoid ADRs and ensure effective drug treatment.
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Affiliation(s)
- Tamim Ahsan
- Department of Genetic Engineering & Biotechnology, Bangabandhu Sheikh Mujibur Rahman Maritime University, Dhaka, Bangladesh
| | | | - Abu Ashfaqur Sajib
- Department of Genetic Engineering & Biotechnology, University of Dhaka, Dhaka, Bangladesh
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32
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West FL, Algee-Hewitt BF. Cadaveric blood cards: Assessing DNA quality and quantity and the utility of STRs for the individual estimation of trihybrid ancestry and admixture proportions. Forensic Sci Int Synerg 2020; 2:114-122. [PMID: 32412010 PMCID: PMC7219121 DOI: 10.1016/j.fsisyn.2020.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 02/04/2023]
Abstract
As part a body donation program, blood samples were collected and stored on untreated (non-FTA) blood cards. The blood cards were evaluated in terms of DNA preservation and STR typing success with resulting profiles assessed with special consideration given to profile matching for positive identification and biogeographic ancestry estimation. While STR profiles were successfully generated for all samples, results indicate that the time interval between date of death and sample collection have an impact on DNA quantity and quality. There is a statistically significant decrease in relative fluorescent unit (RFU) values with increasing time interval between date of death and sample collection, indicating degradation in the blood card samples related to the post-mortem interval prior to sample collection. The STR profiles were used to estimate ancestry and admixture using the program STRUCTURE, demonstrating utility of these markers beyond individual identification purposes, with caveats for application based on population history.
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Affiliation(s)
- Frankie L. West
- Forensic Science Program, Western Carolina University, USA
- Corresponding author.
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33
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Wang LJ, Zhang CW, Su SC, Chen HIH, Chiu YC, Lai Z, Bouamar H, Ramirez AG, Cigarroa FG, Sun LZ, Chen Y. An ancestry informative marker panel design for individual ancestry estimation of Hispanic population using whole exome sequencing data. BMC Genomics 2019; 20:1007. [PMID: 31888480 PMCID: PMC6936141 DOI: 10.1186/s12864-019-6333-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Europeans and American Indians were major genetic ancestry of Hispanics in the U.S. These ancestral groups have markedly different incidence rates and outcomes in many types of cancers. Therefore, the genetic admixture may cause biased genetic association study with cancer susceptibility variants specifically in Hispanics. For example, the incidence rate of liver cancer has been shown with substantial disparity between Hispanic, Asian and non-Hispanic white populations. Currently, ancestry informative marker (AIM) panels have been widely utilized with up to a few hundred ancestry-informative single nucleotide polymorphisms (SNPs) to infer ancestry admixture. Notably, current available AIMs are predominantly located in intron and intergenic regions, while the whole exome sequencing (WES) protocols commonly used in translational research and clinical practice do not cover these markers. Thus, it remains challenging to accurately determine a patient’s admixture proportion without additional DNA testing. Results In this study we designed an unique AIM panel that infers 3-way genetic admixture from three distinct and selective continental populations (African (AFR), European (EUR), and East Asian (EAS)) within evolutionarily conserved exonic regions. Initially, about 1 million exonic SNPs from selective three populations in the 1000 Genomes Project were trimmed by their linkage disequilibrium (LD), restricted to biallelic variants, and finally we optimized to an AIM panel with 250 SNP markers, or the UT-AIM250 panel, using their ancestral informativeness statistics. Comparing to published AIM panels, UT-AIM250 performed better accuracy when we tested with three ancestral populations (accuracy: 0.995 ± 0.012 for AFR, 0.997 ± 0.007 for EUR, and 0.994 ± 0.012 for EAS). We further demonstrated the performance of the UT-AIM250 panel to admixed American (AMR) samples of the 1000 Genomes Project and obtained similar results (AFR, 0.085 ± 0.098; EUR, 0.665 ± 0.182; and EAS, 0.250 ± 0.205) to previously published AIM panels (Phillips-AIM34: AFR, 0.096 ± 0.127, EUR, 0.575 ± 0.290, and EAS, 0.330 ± 0.315; Wei-AIM278: AFR, 0.070 ± 0.096, EUR, 0.537 ± 0.267, and EAS, 0.393 ± 0.300). Subsequently, we applied the UT-AIM250 panel to a clinical dataset of 26 self-reported Hispanic patients in South Texas with hepatocellular carcinoma (HCC). We estimated the admixture proportions using WES data of adjacent non-cancer liver tissues (AFR, 0.065 ± 0.043; EUR, 0.594 ± 0.150; and EAS, 0.341 ± 0.160). Similar admixture proportions were identified from corresponding tumor tissues. In addition, we estimated admixture proportions of The Cancer Genome Atlas (TCGA) collection of hepatocellular carcinoma (TCGA-LIHC) samples (376 patients) using the UT-AIM250 panel. The panel obtained consistent admixture proportions from tumor and matched normal tissues, identified 3 possible incorrectly reported race/ethnicity, and/or provided race/ethnicity determination if necessary. Conclusions Here we demonstrated the feasibility of using evolutionarily conserved exonic regions to infer admixture proportions and provided a robust and reliable control for sample collection or patient stratification for genetic analysis. R implementation of UT-AIM250 is available at https://github.com/chenlabgccri/UT-AIM250.
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Affiliation(s)
- Li-Ju Wang
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Catherine W Zhang
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Sophia C Su
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Hung-I H Chen
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Yu-Chiao Chiu
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Zhao Lai
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA.,Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Hakim Bouamar
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Amelie G Ramirez
- Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, TX, 78229, USA.,Institute for Health Promotion Research, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Francisco G Cigarroa
- Department of Surgery, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Lu-Zhe Sun
- Department of Cell Systems and Anatomy, University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Yidong Chen
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX, 78229, USA. .,Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, TX, 78229, USA.
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34
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Ongaro L, Scliar MO, Flores R, Raveane A, Marnetto D, Sarno S, Gnecchi-Ruscone GA, Alarcón-Riquelme ME, Patin E, Wangkumhang P, Hellenthal G, Gonzalez-Santos M, King RJ, Kouvatsi A, Balanovsky O, Balanovska E, Atramentova L, Turdikulova S, Mastana S, Marjanovic D, Mulahasanovic L, Leskovac A, Lima-Costa MF, Pereira AC, Barreto ML, Horta BL, Mabunda N, May CA, Moreno-Estrada A, Achilli A, Olivieri A, Semino O, Tambets K, Kivisild T, Luiselli D, Torroni A, Capelli C, Tarazona-Santos E, Metspalu M, Pagani L, Montinaro F. The Genomic Impact of European Colonization of the Americas. Curr Biol 2019; 29:3974-3986.e4. [PMID: 31735679 DOI: 10.1016/j.cub.2019.09.076] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/06/2019] [Accepted: 09/30/2019] [Indexed: 12/30/2022]
Abstract
The human genetic diversity of the Americas has been affected by several events of gene flow that have continued since the colonial era and the Atlantic slave trade. Moreover, multiple waves of migration followed by local admixture occurred in the last two centuries, the impact of which has been largely unexplored. Here, we compiled a genome-wide dataset of ∼12,000 individuals from twelve American countries and ∼6,000 individuals from worldwide populations and applied haplotype-based methods to investigate how historical movements from outside the New World affected (1) the genetic structure, (2) the admixture profile, (3) the demographic history, and (4) sex-biased gene-flow dynamics of the Americas. We revealed a high degree of complexity underlying the genetic contribution of European and African populations in North and South America, from both geographic and temporal perspectives, identifying previously unreported sources related to Italy, the Middle East, and to specific regions of Africa.
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Affiliation(s)
- Linda Ongaro
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Molecular and Cell Biology, Riia 23, Tartu 51010, Estonia.
| | - Marilia O Scliar
- Human Genome and Stem Cell Research Center, Biosciences Institute, University of São Paulo, São Paulo, SP 05508-090, Brazil; Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Rodrigo Flores
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia
| | - Alessandro Raveane
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia 27100, Italy
| | - Davide Marnetto
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia
| | - Stefania Sarno
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna 40100, Italy
| | - Guido A Gnecchi-Ruscone
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna 40100, Italy; Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena 07745, Germany
| | - Marta E Alarcón-Riquelme
- GENYO, Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, Granada 18016, Spain
| | - Etienne Patin
- Human Evolutionary Genetics Unit, Pasteur Institute, UMR2000, CNRS, Paris 75015, France
| | - Pongsakorn Wangkumhang
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Garrett Hellenthal
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | | | - Roy J King
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA 94305-5101, USA
| | - Anastasia Kouvatsi
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Oleg Balanovsky
- Vavilov Institute of General Genetics, Ulitsa Gubkina, 3, Moscow 117971, Russia; Research Centre for Medical Genetics, Moskvorech'ye Ulitsa, 1, Moscow 115478, Russia; Biobank of North Eurasia, Kotlyakovskaya Ulitsa, 3 строение 12, Moscow 115201, Russia
| | - Elena Balanovska
- Vavilov Institute of General Genetics, Ulitsa Gubkina, 3, Moscow 117971, Russia; Research Centre for Medical Genetics, Moskvorech'ye Ulitsa, 1, Moscow 115478, Russia; Biobank of North Eurasia, Kotlyakovskaya Ulitsa, 3 строение 12, Moscow 115201, Russia
| | - Lubov Atramentova
- Department of Genetics and Cytology, V.N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
| | - Shahlo Turdikulova
- Laboratory of Genomics, Institute of Bioorganic Chemistry, Academy of Sciences Republic of Uzbekistan, Tashkent 100047, Uzbekistan
| | - Sarabjit Mastana
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK
| | - Damir Marjanovic
- Department of Genetics and Bioengineering, Faculty of Engineering and Information Technologies, International Burch University, Sarajevo 71000, Bosnia and Herzegovina; Institute for Anthropological Researches, Zagreb, Croatia
| | | | - Andreja Leskovac
- Vinca Institute of Nuclear Sciences, University of Belgrade, M. Petrovica Alasa 12-14, Belgrade 11001, Serbia
| | - Maria F Lima-Costa
- Instituto de Pesquisa Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG 30190-002, Brazil
| | - Alexandre C Pereira
- Instituto do Coração, Universidade de São Paulo, São Paulo, SP 05403-900, Brazil
| | - Mauricio L Barreto
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, BA 0110-040, Brazil; Center of Data and Knowledge Integration for Health (CIDACS), Fundação Oswaldo Cruz (FIOCRUZ), Salvador, BA 41745-715, Brazil
| | - Bernardo L Horta
- Programa de Pós-Graduação em Epidemiologia, Universidade Federal de Pelotas, 464, Pelotas, RS 96001-970, Brazil
| | - Nédio Mabunda
- Instituto Nacional de Saúde, Distrito de Marracuene, Estrada Nacional N 1, Província de Maputo, Maputo 1120, Mozambique
| | - Celia A May
- Department of Genetics & Genome Biology, University of Leicester, Leicester LE1 7RH, UK
| | - Andrés Moreno-Estrada
- National Laboratory of Genomics for Biodiversity (LANGEBIO), CINVESTAV, Irapuato, Guanajuato 36821, Mexico
| | - Alessandro Achilli
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia 27100, Italy
| | - Anna Olivieri
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia 27100, Italy
| | - Ornella Semino
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia 27100, Italy
| | - Kristiina Tambets
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia
| | - Toomas Kivisild
- Department of Human Genetics, KU Leuven, Herestraat 49 - box 602, Leuven 3000, Belgium
| | - Donata Luiselli
- Department of Cultural Heritage, University of Bologna, Ravenna Campus, Ravenna 48100, Italy
| | - Antonio Torroni
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia 27100, Italy
| | | | - Eduardo Tarazona-Santos
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia; Department of Biology, University of Padua, Via Ugo Bassi 58B, Padua 35100, Italy
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, Riia 23, Tartu 51010, Estonia; Department of Zoology, University of Oxford, Oxford OX1 3SZ, UK.
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Secolin R, Mas-Sandoval A, Arauna LR, Torres FR, de Araujo TK, Santos ML, Rocha CS, Carvalho BS, Cendes F, Lopes-Cendes I, Comas D. Distribution of local ancestry and evidence of adaptation in admixed populations. Sci Rep 2019; 9:13900. [PMID: 31554886 PMCID: PMC6761108 DOI: 10.1038/s41598-019-50362-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 09/11/2019] [Indexed: 12/14/2022] Open
Abstract
Admixed American populations have different global proportions of European, Sub-Saharan African, and Native-American ancestry. However, individuals who display the same global ancestry could exhibit remarkable differences in the distribution of local ancestry blocks. We studied for the first time the distribution of local ancestry across the genome of 264 Brazilian admixed individuals, ascertained within the scope of the Brazilian Initiative on Precision Medicine. We found a decreased proportion of European ancestry together with an excess of Native-American ancestry on chromosome 8p23.1 and showed that this is due to haplotypes created by chromosomal inversion events. Furthermore, Brazilian non-inverted haplotypes were more similar to Native-American haplotypes than to European haplotypes, in contrast to what was found in other American admixed populations. We also identified signals of recent positive selection on chromosome 8p23.1, and one gene within this locus, PPP1R3B, is related to glycogenesis and has been associated with an increased risk of type 2 diabetes and obesity. These findings point to a selection event after admixture, which is still not entirely understood in recent admixture events.
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Affiliation(s)
- Rodrigo Secolin
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Alex Mas-Sandoval
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
- Department of Genetics, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lara R Arauna
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Fábio R Torres
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Tânia K de Araujo
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Marilza L Santos
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Cristiane S Rocha
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Benilton S Carvalho
- Department of Statistics, Institute of Mathematics, Statistics and Scientific Computing, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Fernando Cendes
- Department of Neurology, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil
| | - Iscia Lopes-Cendes
- Department of Medical Genetics and Genomic Medicine, University of Campinas-UNICAMP, and the Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), Campinas, SP, Brazil.
| | - David Comas
- Departament de Ciències Experimentals i de la Salut, Institute of Evolutionary Biology (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
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36
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Tamm E, Di Cristofaro J, Mazières S, Pennarun E, Kushniarevich A, Raveane A, Semino O, Chiaroni J, Pereira L, Metspalu M, Montinaro F. Genome-wide analysis of Corsican population reveals a close affinity with Northern and Central Italy. Sci Rep 2019; 9:13581. [PMID: 31537848 PMCID: PMC6753063 DOI: 10.1038/s41598-019-49901-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/31/2019] [Indexed: 01/13/2023] Open
Abstract
Despite being the fourth largest island in the Mediterranean basin, the genetic variation of Corsica has not been explored as exhaustively as Sardinia, which is situated only 11 km South. However, it is likely that the populations of the two islands shared, at least in part, similar demographic histories. Moreover, the relative small size of the Corsica may have caused genetic isolation, which, in turn, might be relevant under medical and translational perspectives. Here we analysed genome wide data of 16 Corsicans, and integrated with newly (33 individuals) and previously generated samples from West Eurasia and North Africa. Allele frequency, haplotype-based, and ancient genome analyses suggest that although Sardinia and Corsica may have witnessed similar isolation and migration events, the latter is genetically closer to populations from continental Europe, such as Northern and Central Italians.
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Affiliation(s)
- Erika Tamm
- Institute of Genomics, University of Tartu, Tartu, Estonia.
| | - Julie Di Cristofaro
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France.,Etablissement Français du Sang PACA Corse, Biologie des Groupes Sanguins, Marseille, France
| | | | - Erwan Pennarun
- Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Alena Kushniarevich
- Institute of Genomics, University of Tartu, Tartu, Estonia.,Institute of Genetics and Cytology, National Academy of Sciences of Belarus, Minsk, 220072, Belarus
| | - Alessandro Raveane
- Dipartimento di Biologia e Biotecnologie "L. Spallanzani" Università di Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Ornella Semino
- Dipartimento di Biologia e Biotecnologie "L. Spallanzani" Università di Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Jacques Chiaroni
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France.,Etablissement Français du Sang PACA Corse, Biologie des Groupes Sanguins, Marseille, France
| | - Luisa Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-135, Porto, Portugal
| | - Mait Metspalu
- Institute of Genomics, University of Tartu, Tartu, Estonia
| | - Francesco Montinaro
- Institute of Genomics, University of Tartu, Tartu, Estonia. .,Department of Zoology, University of Oxford, Oxford, UK.
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Raveane A, Aneli S, Montinaro F, Athanasiadis G, Barlera S, Birolo G, Boncoraglio G, Di Blasio AM, Di Gaetano C, Pagani L, Parolo S, Paschou P, Piazza A, Stamatoyannopoulos G, Angius A, Brucato N, Cucca F, Hellenthal G, Mulas A, Peyret-Guzzon M, Zoledziewska M, Baali A, Bycroft C, Cherkaoui M, Chiaroni J, Di Cristofaro J, Dina C, Dugoujon JM, Galan P, Giemza J, Kivisild T, Mazieres S, Melhaoui M, Metspalu M, Myers S, Pereira L, Ricaut FX, Brisighelli F, Cardinali I, Grugni V, Lancioni H, Pascali VL, Torroni A, Semino O, Matullo G, Achilli A, Olivieri A, Capelli C. Population structure of modern-day Italians reveals patterns of ancient and archaic ancestries in Southern Europe. SCIENCE ADVANCES 2019; 5:eaaw3492. [PMID: 31517044 PMCID: PMC6726452 DOI: 10.1126/sciadv.aaw3492] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/10/2019] [Accepted: 08/06/2019] [Indexed: 05/10/2023]
Abstract
European populations display low genetic differentiation as the result of long-term blending of their ancient founding ancestries. However, it is unclear how the combination of ancient ancestries related to early foragers, Neolithic farmers, and Bronze Age nomadic pastoralists can explain the distribution of genetic variation across Europe. Populations in natural crossroads like the Italian peninsula are expected to recapitulate the continental diversity, but have been systematically understudied. Here, we characterize the ancestry profiles of Italian populations using a genome-wide dataset representative of modern and ancient samples from across Italy, Europe, and the rest of the world. Italian genomes capture several ancient signatures, including a non-steppe contribution derived ultimately from the Caucasus. Differences in ancestry composition, as the result of migration and admixture, have generated in Italy the largest degree of population structure detected so far in the continent, as well as shaping the amount of Neanderthal DNA in modern-day populations.
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Affiliation(s)
- A. Raveane
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
- Department of Zoology, University of Oxford, Oxford, UK
| | - S. Aneli
- Department of Zoology, University of Oxford, Oxford, UK
- Department of Medical Sciences, University of Turin, Turin, Italy
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
| | - F. Montinaro
- Department of Zoology, University of Oxford, Oxford, UK
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - G. Athanasiadis
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - S. Barlera
- Department of Cardiovascular Research, Istituto di Ricovero e Cura a Carattere Scientifico–Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
| | - G. Birolo
- Department of Medical Sciences, University of Turin, Turin, Italy
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
| | - G. Boncoraglio
- Department of Cerebrovascular Diseases, IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- PhD Program in Neuroscience, University Milano-Bicocca, Monza, Italy
| | - A. M. Di Blasio
- Istituto Auxologico Italiano, IRCCS, Centro di Ricerche e Tecnologie Biomediche, Milano, Italy
| | - C. Di Gaetano
- Department of Medical Sciences, University of Turin, Turin, Italy
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
| | - L. Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
- APE lab, Department of Biology, University of Padua, Padua, Italy
| | - S. Parolo
- Computational Biology Unit, Institute of Molecular Genetics, National Research Council, Pavia, Italy
| | - P. Paschou
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - A. Piazza
- Department of Medical Sciences, University of Turin, Turin, Italy
- Academy of Sciences, Turin, Italy
| | - G. Stamatoyannopoulos
- Department of Medicine and Genome Sciences, University of Washington, Seattle, WA, USA
| | - A. Angius
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, Cagliari, Italy
| | - N. Brucato
- Evolutionary Medicine Group, Laboratoire d’Anthropologie Moléculaire et Imagerie de Synthèse, Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, Toulouse, France
| | - F. Cucca
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, Cagliari, Italy
| | - G. Hellenthal
- University College London Genetics Institute (UGI), University College London, London, UK
| | - A. Mulas
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Lanusei, Italy
| | - M. Peyret-Guzzon
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - M. Zoledziewska
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato, Cagliari, Italy
| | - A. Baali
- Faculté des Sciences Semlalia de Marrakech (FSSM), Université Cadi Ayyad, Marrakech, Morocco
| | - C. Bycroft
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - M. Cherkaoui
- Faculté des Sciences Semlalia de Marrakech (FSSM), Université Cadi Ayyad, Marrakech, Morocco
| | - J. Chiaroni
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France
- Etablissement Français du Sang PACA Corse, Biologie des Groupes Sanguins, Marseille, France
| | - J. Di Cristofaro
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France
- Etablissement Français du Sang PACA Corse, Biologie des Groupes Sanguins, Marseille, France
| | - C. Dina
- l’institut du thorax, INSERM, CNRS, University of Nantes, Nantes, France
| | - J. M. Dugoujon
- Evolutionary Medicine Group, Laboratoire d’Anthropologie Moléculaire et Imagerie de Synthèse, Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, Toulouse, France
| | - P. Galan
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologie et Statistiques, Université Paris 13/Inserm U1153/Inra U1125/ Cnam, COMUE Sorbonne Paris Cité, F-93017 Bobigny, France
| | - J. Giemza
- l’institut du thorax, INSERM, CNRS, University of Nantes, Nantes, France
| | - T. Kivisild
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
- Department of Human Genetics, KU Leuven, Herestraat 49, box 604, Leuven 3000, Belgium
| | - S. Mazieres
- Aix Marseille Univ, CNRS, EFS, ADES, Marseille, France
| | - M. Melhaoui
- Faculté des Sciences, Université Mohammed Premier, Oujda, Morocco
| | - M. Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
| | - S. Myers
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - L. Pereira
- i3S–Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IPATIMUP–Instituto de Patologia e Imunologia Molecular, Universidade do Porto, Porto, Portugal
| | - F. X. Ricaut
- Evolutionary Medicine Group, Laboratoire d’Anthropologie Moléculaire et Imagerie de Synthèse, Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, Toulouse, France
| | - F. Brisighelli
- Section of Legal Medicine, Institute of Public Health, Catholic University of the Sacred Heart, Rome, Italy
| | - I. Cardinali
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - V. Grugni
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - H. Lancioni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - V. L. Pascali
- Section of Legal Medicine, Institute of Public Health, Catholic University of the Sacred Heart, Rome, Italy
| | - A. Torroni
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - O. Semino
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - G. Matullo
- Department of Medical Sciences, University of Turin, Turin, Italy
- IIGM (Italian Institute for Genomic Medicine), Turin, Italy
| | - A. Achilli
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - A. Olivieri
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - C. Capelli
- Department of Zoology, University of Oxford, Oxford, UK
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Cruz PRS, Ananina G, Gil-da-Silva-Lopes VL, Simioni M, Menaa F, Bezerra MAC, Domingos IF, Araújo AS, Pellegrino R, Hakonarson H, Costa FF, de Melo MB. Genetic comparison of sickle cell anaemia cohorts from Brazil and the United States reveals high levels of divergence. Sci Rep 2019; 9:10896. [PMID: 31350437 PMCID: PMC6659681 DOI: 10.1038/s41598-019-47313-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022] Open
Abstract
Genetic analysis of admixed populations raises special concerns with regard to study design and data processing, particularly to avoid population stratification biases. The point mutation responsible for sickle cell anaemia codes for a variant hemoglobin, sickle hemoglobin or HbS, whose presence drives the pathophysiology of disease. Here we propose to explore ancestry and population structure in a genome-wide study with particular emphasis on chromosome 11 in two SCA admixed cohorts obtained from urban populations of Brazil (Pernambuco and São Paulo) and the United States (Pennsylvania). Ancestry inference showed different proportions of European, African and American backgrounds in the composition of our samples. Brazilians were more admixed, had a lower African background (43% vs. 78% on the genomic level and 44% vs. 76% on chromosome 11) and presented a signature of positive selection and Iberian introgression in the HbS region, driving a high differentiation of this locus between the two cohorts. The genetic structures of the SCA cohorts from Brazil and US differ considerably on the genome-wide, chromosome 11 and HbS mutation locus levels.
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Affiliation(s)
- Pedro R S Cruz
- Laboratory of Human Genetics, Centre for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Galina Ananina
- Laboratory of Human Genetics, Centre for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Vera Lucia Gil-da-Silva-Lopes
- Department of Medical Genetics and Genomic Medicine, Faculty of Medical Sciences, University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Milena Simioni
- Department of Medical Genetics and Genomic Medicine, Faculty of Medical Sciences, University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Farid Menaa
- Laboratory of Human Genetics, Centre for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Marcos A C Bezerra
- Genetics Postgraduate Program, Federal University of Pernambuco, Recife, PE, Brazil
| | - Igor F Domingos
- Genetics Postgraduate Program, Federal University of Pernambuco, Recife, PE, Brazil
| | - Aderson S Araújo
- Haematology and Haemotherapy Foundation of Pernambuco - HEMOPE, Recife, PE, Brazil
| | - Renata Pellegrino
- Center for Applied Genomics, Abramson Research Center, The Children's Hospital of Philadelphia, Philadelphia, USA
| | - Hakon Hakonarson
- Center for Applied Genomics, Abramson Research Center, The Children's Hospital of Philadelphia, Philadelphia, USA
| | - Fernando F Costa
- Haematology and Haemotherapy Centre, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Mônica Barbosa de Melo
- Laboratory of Human Genetics, Centre for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP, Brazil.
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Gnecchi-Ruscone GA, Sarno S, De Fanti S, Gianvincenzo L, Giuliani C, Boattini A, Bortolini E, Di Corcia T, Sanchez Mellado C, Dàvila Francia TJ, Gentilini D, Di Blasio AM, Di Cosimo P, Cilli E, Gonzalez-Martin A, Franceschi C, Franceschi ZA, Rickards O, Sazzini M, Luiselli D, Pettener D. Dissecting the Pre-Columbian Genomic Ancestry of Native Americans along the Andes-Amazonia Divide. Mol Biol Evol 2019; 36:1254-1269. [PMID: 30895292 PMCID: PMC6526910 DOI: 10.1093/molbev/msz066] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Extensive European and African admixture coupled with loss of Amerindian lineages makes the reconstruction of pre-Columbian history of Native Americans based on present-day genomes extremely challenging. Still open questions remain about the dispersals that occurred throughout the continent after the initial peopling from the Beringia, especially concerning the number and dynamics of diffusions into South America. Indeed, if environmental and historical factors contributed to shape distinct gene pools in the Andes and Amazonia, the origins of this East-West genetic structure and the extension of further interactions between populations residing along this divide are still not well understood. To this end, we generated new high-resolution genome-wide data for 229 individuals representative of one Central and ten South Amerindian ethnic groups from Mexico, Peru, Bolivia, and Argentina. Low levels of European and African admixture in the sampled individuals allowed the application of fine-scale haplotype-based methods and demographic modeling approaches. These analyses revealed highly specific Native American genetic ancestries and great intragroup homogeneity, along with limited traces of gene flow mainly from the Andes into Peruvian Amazonians. Substantial amount of genetic drift differentially experienced by the considered populations underlined distinct patterns of recent inbreeding or prolonged isolation. Overall, our results support the hypothesis that all non-Andean South Americans are compatible with descending from a common lineage, while we found low support for common Mesoamerican ancestors of both Andeans and other South American groups. These findings suggest extensive back-migrations into Central America from non-Andean sources or conceal distinct peopling events into the Southern Continent.
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Affiliation(s)
- Guido Alberto Gnecchi-Ruscone
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy.,Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Stefania Sarno
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Sara De Fanti
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Laura Gianvincenzo
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Cristina Giuliani
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Alessio Boattini
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Eugenio Bortolini
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Tullia Di Corcia
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Cesar Sanchez Mellado
- Faculty of Intercultural Education and Humanity, National Intercultural University of Amazon, Ucayali, Peru
| | | | - Davide Gentilini
- Center for Biomedical Research and Technologies, Italian Auxologic Institute IRCCS, Milan, Italy
| | - Anna Maria Di Blasio
- Center for Biomedical Research and Technologies, Italian Auxologic Institute IRCCS, Milan, Italy
| | | | - Elisabetta Cilli
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Antonio Gonzalez-Martin
- Department of Zoology and Physical Anthropology, Complutense University of Madrid, Madrid, Spain
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | - Olga Rickards
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Marco Sazzini
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Donata Luiselli
- Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Davide Pettener
- Laboratory of Molecular Anthropology and Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
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40
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Runs of homozygosity in sub-Saharan African populations provide insights into complex demographic histories. Hum Genet 2019; 138:1123-1142. [DOI: 10.1007/s00439-019-02045-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/03/2019] [Indexed: 12/20/2022]
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41
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Järve M, Saag L, Scheib CL, Pathak AK, Montinaro F, Pagani L, Flores R, Guellil M, Saag L, Tambets K, Kushniarevich A, Solnik A, Varul L, Zadnikov S, Petrauskas O, Avramenko M, Magomedov B, Didenko S, Toshev G, Bruyako I, Grechko D, Okatenko V, Gorbenko K, Smyrnov O, Heiko A, Reida R, Sapiehin S, Sirotin S, Tairov A, Beisenov A, Starodubtsev M, Vasilev V, Nechvaloda A, Atabiev B, Litvinov S, Ekomasova N, Dzhaubermezov M, Voroniatov S, Utevska O, Shramko I, Khusnutdinova E, Metspalu M, Savelev N, Kriiska A, Kivisild T, Villems R. Shifts in the Genetic Landscape of the Western Eurasian Steppe Associated with the Beginning and End of the Scythian Dominance. Curr Biol 2019; 29:2430-2441.e10. [PMID: 31303491 DOI: 10.1016/j.cub.2019.06.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/03/2019] [Accepted: 06/07/2019] [Indexed: 01/08/2023]
Abstract
The Early Iron Age nomadic Scythians have been described as a confederation of tribes of different origins, based on ancient DNA evidence [1-3]. It is still unclear how much of the Scythian dominance in the Eurasian Steppe was due to movements of people and how much reflected cultural diffusion and elite dominance. We present new whole-genome sequences of 31 ancient Western and Eastern Steppe individuals, including Scythians as well as samples pre- and postdating them, allowing us to set the Scythians in a temporal context (in the Western, i.e., Ponto-Caspian Steppe). We detect an increase of eastern (Altaian) affinity along with a decrease in eastern hunter-gatherer (EHG) ancestry in the Early Iron Age Ponto-Caspian gene pool at the start of the Scythian dominance. On the other hand, samples of the Chernyakhiv culture postdating the Scythians in Ukraine have a significantly higher proportion of Near Eastern ancestry than other samples of this study. Our results agree with the Gothic source of the Chernyakhiv culture and support the hypothesis that the Scythian dominance did involve a demic component.
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Affiliation(s)
- Mari Järve
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia.
| | - Lehti Saag
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Christiana Lyn Scheib
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Ajai K Pathak
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia; Department of Biology, University of Padova, Via U. Bassi 58/B, Padova 35121, Italy
| | - Rodrigo Flores
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Meriam Guellil
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Lauri Saag
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Kristiina Tambets
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Alena Kushniarevich
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Anu Solnik
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Liivi Varul
- School of Humanities, Tallinn University, 29 Narva Street, Tallinn 10120, Estonia
| | - Stanislav Zadnikov
- Museum of Archaeology, V.N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv 61022, Ukraine
| | - Oleg Petrauskas
- Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Maryana Avramenko
- Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Boris Magomedov
- Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Serghii Didenko
- National Museum of History of Ukraine, 2 Volodymyrs'ka Street, Kyiv 02000, Ukraine
| | - Gennadi Toshev
- Zaporizhzhya National University, 33A Dniprovska Street, Zaporizhzhya 69061, Ukraine
| | - Igor Bruyako
- Odessa Archaeological Museum, 4 Lanzheronivs'ka Street, Odessa 65000, Ukraine
| | - Denys Grechko
- Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Vitalii Okatenko
- SC SRC "Protective Archeological Service of Ukraine," Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Kyrylo Gorbenko
- Mykolaiv V.O. Sukhomlynskyi National University, 24 Nikolska Street, Mykolaiv 54030, Ukraine
| | - Oleksandr Smyrnov
- Mykolaiv V.O. Sukhomlynskyi National University, 24 Nikolska Street, Mykolaiv 54030, Ukraine
| | - Anatolii Heiko
- National Museum of Ukrainian Pottery in Opishne, 102 Partyzanska Street, Opishne 38164, Ukraine
| | - Roman Reida
- Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroyiv Stalinhradu Avenue, Kyiv 04210, Ukraine
| | - Serheii Sapiehin
- Anton Makarenko Museum, Poltava Regional Makarenko Scientific Lyceum, 1-2 Makarenko Lane, Kovalivka 38701, Ukraine
| | - Sergey Sirotin
- Institute of Archaeology, Russian Academy of Sciences, 19 Dmitri Ulyanov Street, Moscow 117292, Russia
| | - Aleksandr Tairov
- South Ural State University, 76 Lenin Avenue, Chelyabinsk 454080, Russia
| | - Arman Beisenov
- A. Kh. Margulan Institute of Archaeology, 44 Dostyk Avenue, Almaty 480100, Kazakhstan
| | - Maksim Starodubtsev
- Sterlitamak Museum of Local History, 100 Karl Marx Street, Sterlitamak 453124, Russia
| | - Vitali Vasilev
- LoCom Medien Akademie Europäisches Bildungsinstitut, Bachstraße 4, Bonn 53115, Germany
| | - Alexei Nechvaloda
- Institute of History, Language and Literature, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia
| | - Biyaslan Atabiev
- Institute for Caucasus Archaeology, 30 Katkhanova Street, Nalchik 361401, Russia
| | - Sergey Litvinov
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia
| | - Natalia Ekomasova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia; Department of Genetics and Fundamental Medicine, Bashkir State University, 32 Zaki Validi Street, Ufa 450076, Russia
| | - Murat Dzhaubermezov
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia; Department of Genetics and Fundamental Medicine, Bashkir State University, 32 Zaki Validi Street, Ufa 450076, Russia
| | - Sergey Voroniatov
- Department of Archaeology of Eastern Europe and Siberia, State Hermitage Museum, 34 Dvortsovaya Embankment, St. Petersburg 190000, Russia
| | - Olga Utevska
- Department of Genetics and Cytology, V.N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv 61022, Ukraine
| | - Irina Shramko
- Museum of Archaeology, V.N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv 61022, Ukraine
| | - Elza Khusnutdinova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia; Department of Genetics and Fundamental Medicine, Bashkir State University, 32 Zaki Validi Street, Ufa 450076, Russia
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
| | - Nikita Savelev
- Institute of History, Language and Literature, Ufa Federal Research Centre of the Russian Academy of Sciences, 71 October Avenue, Ufa 450054, Russia
| | - Aivar Kriiska
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, 2 Jakobi Street, Tartu 51014, Estonia
| | - Toomas Kivisild
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia; Department of Human Genetics, KU Leuven, O&N IV Herestraat 49, Leuven 3000, Belgium
| | - Richard Villems
- Estonian Biocentre, Institute of Genomics, University of Tartu, 23b Riia Street, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu, 23b Riia Street, Tartu 51010, Estonia
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Zhang F, Finkelstein J. Inconsistency in race and ethnic classification in pharmacogenetics studies and its potential clinical implications. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2019; 12:107-123. [PMID: 31308725 PMCID: PMC6612983 DOI: 10.2147/pgpm.s207449] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022]
Abstract
Introduction Racial and ethnic categories are frequently used in pharmacogenetics literature to stratify patients; however, these categories can be inconsistent across different studies. To address the ongoing debate on the applicability of traditional concepts of race and ethnicity in the context of precision medicine, we aimed to review the application of current racial and ethnic categories in pharmacogenetics and its potential impact on clinical care. Methods One hundred and three total pharmacogenetics papers involving the CYP2C9, CYP2C19, and CYP2D6 genes were analyzed for their country of origin, racial, and ethnic categories used, and allele frequency data. Correspondence between the major continental racial categories promulgated by National Institutes of Health (NIH) and those reported by the pharmacogenetics papers was evaluated. Results The racial and ethnic categories used in the papers we analyzed were highly heterogeneous. In total, we found 66 different racial and ethnic categories used which fall under the NIH race category “White”, 47 different racial and ethnic categories for “Asian”, and 62 different categories for “Black”. The number of categories used varied widely based on country of origin: Japan used the highest number of different categories for “White” with 17, Malaysia used the highest number for “Asian” with 24, and the US used the highest number for “Black” with 28. Significant variation in allele frequency between different ethnic subgroups was identified within 3 major continental racial categories. Conclusion Our analysis showed that racial and ethnic classification is highly inconsistent across different papers as well as between different countries. Evidence-based consensus is necessary for optimal use of self-identified race as well as geographical ancestry in pharmacogenetics. Common taxonomy of geographical ancestry which reflects specifics of particular countries and is accepted by the entire scientific community can facilitate reproducible pharmacogenetic research and clinical implementation of its results.
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Affiliation(s)
- Frederick Zhang
- Center for Bioinformatics and Data Analytics, Columbia University Irving Medical Center, New York, NY, USA
| | - Joseph Finkelstein
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Cui R, Medeiros T, Willemsen D, Iasi LN, Collier GE, Graef M, Reichard M, Valenzano DR. Relaxed Selection Limits Lifespan by Increasing Mutation Load. Cell 2019; 178:385-399.e20. [DOI: 10.1016/j.cell.2019.06.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/18/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023]
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Mitchell KA, Williams H. Emerging genomic biomarkers for improving kidney, prostate, and bladder cancer health disparities outcomes. Urol Oncol 2019; 40:126-132. [PMID: 31239186 DOI: 10.1016/j.urolonc.2019.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/21/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Recent advances in genomic and genetic technologies have facilitated better health outcomes for urologic cancer patients. Genomic and genetic heterogeneity may contribute to differences in tumor biology and urologic cancer burden across various populations. OBJECTIVE To examine how emerging genomic and genetic biomarkers, self-reported race, and ancestry-informative markers are associated with kidney, prostate, and bladder cancer outcomes. RESULTS Genomic and genetic alterations found in African American kidney cancer patients included distinct somatic mutations, somatic copy number alterations, chromosomal instability, germ-line risk alleles, and germ-line genetic variants. These changes correlated with improved risk prediction, prognosis, and survival; and a predicted decrease in response to targeted therapies. SNP risk alleles and ancestry-informative markers were associated with improved risk prediction in prostate cancer patients of both African and European descent. AKT activation suggest differential response to AKT-targeted therapies in African American, Asian American, and Tunisian bladder cancer patients. Both self-reported race and genetic ancestry predicted urologic cancer risk prediction. CONCLUSION Precision medicine approaches that integrate population-specific genomic and genetic information with other known urologic cancer-specific characteristics can improve outcomes and be leveraged to reduce cancer health disparities. Further investigations are necessary to identify novel genomic biomarkers with clinical utility.
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Affiliation(s)
| | - Heinric Williams
- Urology Department, Geisinger Clinic, Danville, PA; Weis Center for Research, Geisinger Clinic, Danville, PA.
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45
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Upadhyay M, Bortoluzzi C, Barbato M, Ajmone‐Marsan P, Colli L, Ginja C, Sonstegard TS, Bosse M, Lenstra JA, Groenen MAM, Crooijmans RPMA. Deciphering the patterns of genetic admixture and diversity in southern European cattle using genome-wide SNPs. Evol Appl 2019; 12:951-963. [PMID: 31080507 PMCID: PMC6503822 DOI: 10.1111/eva.12770] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/23/2018] [Accepted: 12/27/2018] [Indexed: 01/10/2023] Open
Abstract
The divergence between indicine cattle (Bos indicus) and taurine cattle (Bos taurus) is estimated to have occurred approximately 250,000 years ago, but a small number of European cattle breeds still display shared ancestry with indicine cattle. Additionally, following the divergence of African and European taurine, the gene flow between African taurine and southern European cattle has also been proposed. However, the extent to which non-European cattle ancestry is diffused across southern European cattle has not been investigated thoroughly. Also, in recent times, many local breeds have suffered severe reductions in effective population size. Therefore, in the present study, we investigated the pattern of genetic diversity in various European cattle based on single nucleotide polymorphisms (SNP) identified from whole-genome sequencing data. Additionally, we also employed unlinked and phased SNP-based approaches on high-density SNP array data to characterize non-European cattle ancestry in several southern European cattle breeds. Using heterozygosity-based parameters, we concluded that, on average, nucleotide diversity is greater in southern European cattle than western European (British and commercial) cattle. However, an abundance of long runs of homozygosity (ROH) and the pattern of Linkage disequilibrium decay suggested recent bottlenecks in Maltese and Romagnola. High nucleotide diversity outside ROH indicated a highly diverse founder population for southern European and African taurine. We also show that Iberian cattle display shared ancestry with African cattle. Furthermore, we show that Podolica is an ancient cross-bred between Indicine zebu and European taurine. Additionally, we also inferred similar ancestry profile of non-European cattle ancestry in different Balkan and Italian cattle breeds which might be an indication of the common origin of indicine ancestry in these breeds. Finally, we discuss several plausible demographic scenarios which might account for the presence of non-European cattle ancestry in these cattle breeds.
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Affiliation(s)
- Maulik Upadhyay
- Animal Breeding and GenomicsWageningen University & ResearchWageningenThe Netherlands
- Department of Animal Breeding and GeneticsSwedish University of Agricultural SciencesUppsalaSweden
| | - Chiara Bortoluzzi
- Animal Breeding and GenomicsWageningen University & ResearchWageningenThe Netherlands
| | - Mario Barbato
- Department of Animal Science, Food and Nutrition – DIANA, Nutrigenomics and Proteomics Research Centre – PRONUTRIGEN, Biodiversity and Ancient DNA Research Centre – BioDNAUniversità Cattolica del Sacro CuorePiacenzaItaly
| | - Paolo Ajmone‐Marsan
- Department of Animal Science, Food and Nutrition – DIANA, Nutrigenomics and Proteomics Research Centre – PRONUTRIGEN, Biodiversity and Ancient DNA Research Centre – BioDNAUniversità Cattolica del Sacro CuorePiacenzaItaly
| | - Licia Colli
- Department of Animal Science, Food and Nutrition – DIANA, Nutrigenomics and Proteomics Research Centre – PRONUTRIGEN, Biodiversity and Ancient DNA Research Centre – BioDNAUniversità Cattolica del Sacro CuorePiacenzaItaly
| | - Catarina Ginja
- CIBIO‐InBIO—Centro de Investigação em Biodiversidade e Recursos GenéticosUniversidade do PortoVairaoPortugal
| | | | - Mirte Bosse
- Animal Breeding and GenomicsWageningen University & ResearchWageningenThe Netherlands
| | | | - Martien A. M. Groenen
- Animal Breeding and GenomicsWageningen University & ResearchWageningenThe Netherlands
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Saag L, Laneman M, Varul L, Malve M, Valk H, Razzak MA, Shirobokov IG, Khartanovich VI, Mikhaylova ER, Kushniarevich A, Scheib CL, Solnik A, Reisberg T, Parik J, Saag L, Metspalu E, Rootsi S, Montinaro F, Remm M, Mägi R, D'Atanasio E, Crema ER, Díez-Del-Molino D, Thomas MG, Kriiska A, Kivisild T, Villems R, Lang V, Metspalu M, Tambets K. The Arrival of Siberian Ancestry Connecting the Eastern Baltic to Uralic Speakers further East. Curr Biol 2019; 29:1701-1711.e16. [PMID: 31080083 PMCID: PMC6544527 DOI: 10.1016/j.cub.2019.04.026] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/18/2019] [Accepted: 04/09/2019] [Indexed: 01/08/2023]
Abstract
In this study, we compare the genetic ancestry of individuals from two as yet genetically unstudied cultural traditions in Estonia in the context of available modern and ancient datasets: 15 from the Late Bronze Age stone-cist graves (1200-400 BC) (EstBA) and 6 from the Pre-Roman Iron Age tarand cemeteries (800/500 BC-50 AD) (EstIA). We also included 5 Pre-Roman to Roman Iron Age Ingrian (500 BC-450 AD) (IngIA) and 7 Middle Age Estonian (1200-1600 AD) (EstMA) individuals to build a dataset for studying the demographic history of the northern parts of the Eastern Baltic from the earliest layer of Mesolithic to modern times. Our findings are consistent with EstBA receiving gene flow from regions with strong Western hunter-gatherer (WHG) affinities and EstIA from populations related to modern Siberians. The latter inference is in accordance with Y chromosome (chrY) distributions in present day populations of the Eastern Baltic, as well as patterns of autosomal variation in the majority of the westernmost Uralic speakers [1-5]. This ancestry reached the coasts of the Baltic Sea no later than the mid-first millennium BC; i.e., in the same time window as the diversification of west Uralic (Finnic) languages [6]. Furthermore, phenotypic traits often associated with modern Northern Europeans, like light eyes, hair, and skin, as well as lactose tolerance, can be traced back to the Bronze Age in the Eastern Baltic. VIDEO ABSTRACT.
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Affiliation(s)
- Lehti Saag
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Cell and Molecular Biology, University of Tartu, Tartu 51010, Estonia.
| | - Margot Laneman
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, Tartu 51014, Estonia
| | - Liivi Varul
- School of Humanities, Tallinn University, Tallinn 10120, Estonia
| | - Martin Malve
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, Tartu 51014, Estonia
| | - Heiki Valk
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, Tartu 51014, Estonia
| | - Maria A Razzak
- Department of Slavic and Finnic Archaeology, Institute for the History of Material Culture, Russian Academy of Sciences, St. Petersburg 191186, Russia
| | - Ivan G Shirobokov
- Museum of Anthropology and Ethnography (Kunstkamera), Russian Academy of Sciences, St. Petersburg 199034, Russia
| | - Valeri I Khartanovich
- Museum of Anthropology and Ethnography (Kunstkamera), Russian Academy of Sciences, St. Petersburg 199034, Russia
| | | | - Alena Kushniarevich
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Christiana Lyn Scheib
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Anu Solnik
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Tuuli Reisberg
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Jüri Parik
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Cell and Molecular Biology, University of Tartu, Tartu 51010, Estonia
| | - Lauri Saag
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Ene Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Siiri Rootsi
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Maido Remm
- Department of Bioinformatics, Institute of Cell and Molecular Biology, University of Tartu, Tartu 51010, Estonia
| | - Reedik Mägi
- Estonian Genome Center, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | | | | | - David Díez-Del-Molino
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm 104 05, Sweden; Department of Archaeology and Classical Studies, Stockholm University, Stockholm 106 91, Sweden
| | - Mark G Thomas
- Research Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK; UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Aivar Kriiska
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, Tartu 51014, Estonia
| | - Toomas Kivisild
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Cell and Molecular Biology, University of Tartu, Tartu 51010, Estonia; Department of Human Genetics, KU Leuven, Leuven 3000, Belgium
| | - Richard Villems
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia; Department of Evolutionary Biology, Institute of Cell and Molecular Biology, University of Tartu, Tartu 51010, Estonia
| | - Valter Lang
- Department of Archaeology, Institute of History and Archaeology, University of Tartu, Tartu 51014, Estonia
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia
| | - Kristiina Tambets
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu 51010, Estonia.
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Norris ET, Rishishwar L, Wang L, Conley AB, Chande AT, Dabrowski AM, Valderrama-Aguirre A, Jordan IK. Assortative Mating on Ancestry-Variant Traits in Admixed Latin American Populations. Front Genet 2019; 10:359. [PMID: 31105740 PMCID: PMC6491930 DOI: 10.3389/fgene.2019.00359] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 04/04/2019] [Indexed: 11/13/2022] Open
Abstract
Assortative mating is a universal feature of human societies, and individuals from ethnically diverse populations are known to mate assortatively based on similarities in genetic ancestry. However, little is currently known regarding the exact phenotypic cues, or their underlying genetic architecture, which inform ancestry-based assortative mating. We developed a novel approach, using genome-wide analysis of ancestry-specific haplotypes, to evaluate ancestry-based assortative mating on traits whose expression varies among the three continental population groups – African, European, and Native American – that admixed to form modern Latin American populations. Application of this method to genome sequences sampled from Colombia, Mexico, Peru, and Puerto Rico revealed widespread ancestry-based assortative mating. We discovered a number of anthropometric traits (body mass, height, and facial development) and neurological attributes (educational attainment and schizophrenia) that serve as phenotypic cues for ancestry-based assortative mating. Major histocompatibility complex (MHC) loci show population-specific patterns of both assortative and disassortative mating in Latin America. Ancestry-based assortative mating in the populations analyzed here appears to be driven primarily by African ancestry. This study serves as an example of how population genomic analyses can yield novel insights into human behavior.
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Affiliation(s)
- Emily T Norris
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.,IHRC-Georgia Tech Applied Bioinformatics Laboratory, Atlanta, GA, United States.,PanAmerican Bioinformatics Institute, Cali, Colombia
| | - Lavanya Rishishwar
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.,IHRC-Georgia Tech Applied Bioinformatics Laboratory, Atlanta, GA, United States.,PanAmerican Bioinformatics Institute, Cali, Colombia
| | - Lu Wang
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.,PanAmerican Bioinformatics Institute, Cali, Colombia
| | - Andrew B Conley
- IHRC-Georgia Tech Applied Bioinformatics Laboratory, Atlanta, GA, United States
| | - Aroon T Chande
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.,IHRC-Georgia Tech Applied Bioinformatics Laboratory, Atlanta, GA, United States.,PanAmerican Bioinformatics Institute, Cali, Colombia
| | - Adam M Dabrowski
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States
| | | | - I King Jordan
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States.,IHRC-Georgia Tech Applied Bioinformatics Laboratory, Atlanta, GA, United States.,PanAmerican Bioinformatics Institute, Cali, Colombia
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48
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Ostrom QT, Egan KM, Nabors LB, Gerke T, Thompson RC, Olson JJ, LaRocca R, Chowdhary S, Eckel-Passow JE, Armstrong G, Wiencke JK, Bernstein JL, Claus EB, Il'yasova D, Johansen C, Lachance DH, Lai RK, Merrell RT, Olson SH, Sadetzki S, Schildkraut JM, Shete S, Houlston RS, Jenkins RB, Wrensch MR, Melin B, Amos CI, Huse JT, Barnholtz-Sloan JS, Bondy ML. Glioma risk associated with extent of estimated European genetic ancestry in African Americans and Hispanics. Int J Cancer 2019; 146:739-748. [PMID: 30963577 DOI: 10.1002/ijc.32318] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 01/30/2019] [Accepted: 02/14/2019] [Indexed: 12/15/2022]
Abstract
Glioma incidence is highest in non-Hispanic Whites, and to date, glioma genome-wide association studies (GWAS) to date have only included European ancestry (EA) populations. African Americans and Hispanics in the US have varying proportions of EA, African (AA) and Native American ancestries (NAA). It is unknown if identified GWAS loci or increased EA is associated with increased glioma risk. We assessed whether EA was associated with glioma in African Americans and Hispanics. Data were obtained for 832 cases and 675 controls from the Glioma International Case-Control Study and GliomaSE Case-Control Study previously estimated to have <80% EA, or self-identify as non-White. We estimated global and local ancestry using fastStructure and RFMix, respectively, using 1,000 genomes project reference populations. Within groups with ≥40% AA (AFR≥0.4 ), and ≥15% NAA (AMR≥0.15 ), genome-wide association between local EA and glioma was evaluated using logistic regression conditioned on global EA for all gliomas. We identified two regions (7q21.11, p = 6.36 × 10-4 ; 11p11.12, p = 7.0 × 10-4 ) associated with increased EA, and one associated with decreased EA (20p12.13, p = 0.0026) in AFR≥0.4 . In addition, we identified a peak at rs1620291 (p = 4.36 × 10-6 ) in 7q21.3. Among AMR≥0.15 , we found an association between increased EA in one region (12q24.21, p = 8.38 × 10-4 ), and decreased EA in two regions (8q24.21, p = 0. 0010; 20q13.33, p = 6.36 × 10-4 ). No other significant associations were identified. This analysis identified an association between glioma and two regions previously identified in EA populations (8q24.21, 20q13.33) and four novel regions (7q21.11, 11p11.12, 12q24.21 and 20p12.13). The identifications of novel association with EA suggest regions to target for future genetic association studies.
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Affiliation(s)
- Quinn T Ostrom
- Department of Medicine, Section of Epidemiology and Population Sciences, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | - Kathleen M Egan
- Division of Population Sciences, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - L Burt Nabors
- Neuro-Oncology Program, University of Alabama at Birmingham, Birmingham, AL
| | - Travis Gerke
- Division of Population Sciences, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - Reid C Thompson
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Jeffrey J Olson
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA
| | - Renato LaRocca
- Department of Hematology-Oncology, Norton Cancer Institute, Louisville, KY
| | | | - Jeanette E Eckel-Passow
- Division of Biomedical Statistics and Informatics, Mayo Clinic College of Medicine, Rochester, MN
| | - Georgina Armstrong
- Department of Medicine, Section of Epidemiology and Population Sciences, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | - John K Wiencke
- Department of Neurological Surgery, School of Medicine, University of California, San Francisco, San Francisco, CA
| | - Jonine L Bernstein
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, NY, New York
| | - Elizabeth B Claus
- School of Public Health, Yale University, New Haven, CT.,Department of Neurosurgery, Brigham and Women's Hospital, Boston, MA
| | - Dora Il'yasova
- Department of Epidemiology and Biostatistics, School of Public Health, Georgia State University, Atlanta, GA.,Cancer Control and Prevention Program, Department of Community and Family Medicine, Duke University Medical Center, Durham, NC.,Duke Cancer Institute, Duke University Medical Center, Durham, NC
| | - Christoffer Johansen
- Oncology Clinic, Finsen Center, Rigshospitalet and Survivorship Research Unit, The Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Daniel H Lachance
- Department of Neurology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Rochester, MN
| | - Rose K Lai
- Department of Neurology and Preventive Medicine, Keck School of Medicine, University of Southern California, CA, Los Angeles
| | - Ryan T Merrell
- Department of Neurology, NorthShore University HealthSystem, Evanston, IL
| | - Sara H Olson
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, NY, New York
| | - Siegal Sadetzki
- Cancer and Radiation Epidemiology Unit, Gertner Institute, Chaim Sheba Medical Center, Tel Hashomer, Israel.,Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Joellen M Schildkraut
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA
| | - Sanjay Shete
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Richard S Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research in Sutton, Surrey, United Kingdom
| | - Robert B Jenkins
- Department of Laboratory Medicine and Pathology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Rochester, MN
| | - Margaret R Wrensch
- Department of Neurological Surgery, School of Medicine, University of California, San Francisco, San Francisco, CA
| | - Beatrice Melin
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Christopher I Amos
- Institute for Clinical and Translational Research, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
| | - Jason T Huse
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jill S Barnholtz-Sloan
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | - Melissa L Bondy
- Department of Medicine, Section of Epidemiology and Population Sciences, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX
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49
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Chacón-Duque JC, Adhikari K, Fuentes-Guajardo M, Mendoza-Revilla J, Acuña-Alonzo V, Barquera R, Quinto-Sánchez M, Gómez-Valdés J, Everardo Martínez P, Villamil-Ramírez H, Hünemeier T, Ramallo V, Silva de Cerqueira CC, Hurtado M, Villegas V, Granja V, Villena M, Vásquez R, Llop E, Sandoval JR, Salazar-Granara AA, Parolin ML, Sandoval K, Peñaloza-Espinosa RI, Rangel-Villalobos H, Winkler CA, Klitz W, Bravi C, Molina J, Corach D, Barrantes R, Gomes V, Resende C, Gusmão L, Amorim A, Xue Y, Dugoujon JM, Moral P, González-José R, Schuler-Faccini L, Salzano FM, Bortolini MC, Canizales-Quinteros S, Poletti G, Gallo C, Bedoya G, Rothhammer F, Balding D, Hellenthal G, Ruiz-Linares A. Latin Americans show wide-spread Converso ancestry and imprint of local Native ancestry on physical appearance. Nat Commun 2018; 9:5388. [PMID: 30568240 PMCID: PMC6300600 DOI: 10.1038/s41467-018-07748-z] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 11/19/2018] [Indexed: 12/15/2022] Open
Abstract
Historical records and genetic analyses indicate that Latin Americans trace their ancestry mainly to the intermixing (admixture) of Native Americans, Europeans and Sub-Saharan Africans. Using novel haplotype-based methods, here we infer sub-continental ancestry in over 6,500 Latin Americans and evaluate the impact of regional ancestry variation on physical appearance. We find that Native American ancestry components in Latin Americans correspond geographically to the present-day genetic structure of Native groups, and that sources of non-Native ancestry, and admixture timings, match documented migratory flows. We also detect South/East Mediterranean ancestry across Latin America, probably stemming mostly from the clandestine colonial migration of Christian converts of non-European origin (Conversos). Furthermore, we find that ancestry related to highland (Central Andean) versus lowland (Mapuche) Natives is associated with variation in facial features, particularly nose morphology, and detect significant differences in allele frequencies between these groups at loci previously associated with nose morphology in this sample.
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Affiliation(s)
- Juan-Camilo Chacón-Duque
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
| | - Kaustubh Adhikari
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
| | - Macarena Fuentes-Guajardo
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
- Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica, 1000009, Chile
| | - Javier Mendoza-Revilla
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Victor Acuña-Alonzo
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
- Molecular Genetics Laboratory, Escuela Nacional de Antropología e Historia, Mexico City, 14030, Mexico
| | - Rodrigo Barquera
- Molecular Genetics Laboratory, Escuela Nacional de Antropología e Historia, Mexico City, 14030, Mexico
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, 07745, Germany
| | - Mirsha Quinto-Sánchez
- Ciencia Forense, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Jorge Gómez-Valdés
- Posgrado en Antropología Física, Escuela Nacional de Antropología e Historia, Mexico City, 14030, Mexico
| | - Paola Everardo Martínez
- Posgrado en Antropología, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
| | - Hugo Villamil-Ramírez
- Unidad de Genómica de Poblaciones Aplicada a la Salud, Facultad de Química, Universidad Nacional Autónoma de México e Instituto Nacional de Medicina Genómica, Mexico City, 04510, Mexico
| | - Tábita Hünemeier
- Departamento de Genética e Biología Evolutiva, Instituto de Biociências, Universidade de São Paulo, Sao Paulo, 05508-090, Brazil
| | - Virginia Ramallo
- Instituto Patagónico de Ciencias Sociales y Humanas-Centro Nacional Patagónico, CONICET, Puerto Madryn, U912OACD, Argentina
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Caio C Silva de Cerqueira
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Malena Hurtado
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Valeria Villegas
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Vanessa Granja
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Mercedes Villena
- Instituto Boliviano de Biología de Altura (IBBA), Universidad Mayor de San Andrés (UMSA), La Paz, 2070, Bolivia
| | - René Vásquez
- Instituto Boliviano de Biología de Altura (IBBA), Universidad Autónoma Tomás Frías, Potosí, 53820, Bolivia
| | - Elena Llop
- Programa de Genetica Humana, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, 1027, Chile
| | - José R Sandoval
- Facultad de Medicina Humana, Universidad de San Martín de Porres, Lima, 12, Peru
| | | | - Maria-Laura Parolin
- Instituto de Diversidad y Evolución Austral (IDEAus), Centro Nacional Patagónico, CONICET, Puerto Madryn, U912OACD, Argentina
| | - Karla Sandoval
- National Laboratory of Genomics and Biodiversity (LANGEBIO), CINVESTAV, Irapuato, 36821, Mexico
| | - Rosenda I Peñaloza-Espinosa
- Department of Biological Systems, Division of Biological and Health Sciences, Universidad Autónoma Metropolitana-Xochimilco, Mexico City, 04960, Mexico
| | - Hector Rangel-Villalobos
- Instituto de Investigación en Genética Molecular, Universidad de Guadalajara, Ocotlán, 1115, Mexico
| | - Cheryl A Winkler
- Basic Research Laboratory, National Cancer Institute, Frederick National Laboratory, Frederick, MD, 21702, USA
| | - William Klitz
- Integrative Biology, University of California, Berkeley, CA, 94720, USA
| | - Claudio Bravi
- Instituto Multidisciplinario de Biología Celular, CONICET, La Plata, B1906APO, Argentina
| | - Julio Molina
- Centro de Investigaciones Biomédicas de Guatemala, Ciudad de Guatemala, 01011, Guatemala
| | - Daniel Corach
- Servicio de Huellas Digitales Genéticas and CONICET, Universidad de Buenos Aires, Buenos Aires, C1113AAD, Argentina
| | - Ramiro Barrantes
- Escuela de Biología, Universidad de Costa Rica, San José, 2060, Costa Rica
| | - Verónica Gomes
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, 4200-135, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, 4200-135, Portugal
| | - Carlos Resende
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, 4200-135, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, 4200-135, Portugal
| | - Leonor Gusmão
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, 4200-135, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, 4200-135, Portugal
- DNA Diagnostic Laboratory (LDD), Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 23968-000, Brazil
| | - Antonio Amorim
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Porto, 4200-135, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, 4200-135, Portugal
- Faculdade de Ciências, Universidade do Porto, Porto, 4169-007, Portugal
| | - Yali Xue
- The Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK
| | - Jean-Michel Dugoujon
- Centre National de la Recherche Scientifique, Université Toulouse 3 Paul Sabatier, Toulouse, 31330, France
| | - Pedro Moral
- Departamento de Biología Evolutiva, Ecología y Ciencias Ambientales, Universitat de Barcelona, Barcelona, 08007, Spain
| | - Rolando González-José
- Instituto Patagónico de Ciencias Sociales y Humanas-Centro Nacional Patagónico, CONICET, Puerto Madryn, U912OACD, Argentina
| | - Lavinia Schuler-Faccini
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Francisco M Salzano
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Maria-Cátira Bortolini
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | - Samuel Canizales-Quinteros
- Unidad de Genómica de Poblaciones Aplicada a la Salud, Facultad de Química, Universidad Nacional Autónoma de México e Instituto Nacional de Medicina Genómica, Mexico City, 04510, Mexico
| | - Giovanni Poletti
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Carla Gallo
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Peru
| | - Gabriel Bedoya
- Genética Molecular (GENMOL), Universidad de Antioquia, Medellín, 5001000, Colombia
| | - Francisco Rothhammer
- Programa de Genetica Humana, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, 1027, Chile
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, 1000009, Chile
| | - David Balding
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK
- Schools of BioSciences and Mathematics & Statistics, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Garrett Hellenthal
- Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London, WC1E 6BT, UK.
| | - Andrés Ruiz-Linares
- Ministry of Education Key Laboratory of Contemporary Anthropology and Collaborative Innovation Center of Genetics and Development, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, 200433, China.
- Aix-Marseille Univ, CNRS, EFS, ADES, Marseille, 13007, France.
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Bruch's membrane opening minimum rim width and retinal nerve fiber layer thickness in a Brazilian population of healthy subjects. PLoS One 2018; 13:e0206887. [PMID: 30562371 PMCID: PMC6298691 DOI: 10.1371/journal.pone.0206887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 10/23/2018] [Indexed: 11/30/2022] Open
Abstract
Objective To determine Bruch’s membrane opening (BMO) minimum rim width (MRW) and peripapillary retinal nerve fiber layer thickness (RNFLT) measurements, acquired with optical coherence tomography (OCT) in healthy Brazilian individuals self-reported as African Descent (AD), European Descent (ED) and Mixed Descent (MD). Methods 260 healthy individuals (78 AD, 103 ED and 79 MD) were included in this cross-sectional study conducted at the Clinics Hospital of the University of Campinas. We obtained optic nerve head (24 radial B scans) and peripapillary retinal nerve fiber layer (3.5-mm circle scan) images in one randomly selected eye of each subject. Results After adjustment for BMO area and age, there were no significant differences in mean global MRW (P = 0.63) or RNFLT (P = 0.07) among the three groups. Regionally, there were no significant differences in either MRW or RNFLT in most sectors, except in the superonasal sector, in which both MRW and RNFLT were thinner among ED (P = 0.04, P<0.001, respectively). RNFLT was also thinner in ED in the inferonasal sector (P = 0.009). In all races, global MRW decreased and global RNFLT increased with BMO area. AD subjects had higher rates of global RNFLT decay with age (-0.32 μm/year) compared to ED and MD subjects (-0.10 μm/year and -0.08 μm/year, respectively; P = 0.01 and P = 0.02, respectively). Conclusions and relevance While we found no significant differences in global MRW and RNFLT among the three races, age-related thinning of the RNFLT was significantly higher in the AD subgroup, which warrants further study.
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