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Mintoff D, Pace NP, Borg I. NCSTN In-Frame Deletion in Maltese Patients With Hidradenitis Suppurativa. JAMA Dermatol 2023; 159:939-944. [PMID: 37494055 PMCID: PMC10372757 DOI: 10.1001/jamadermatol.2023.2227] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 04/19/2023] [Indexed: 07/27/2023]
Abstract
Importance Hidradenitis suppurativa (HS) is a complex trait that has a monogenic etiology in a subset of patients. Variation in genes that encode proteins of the γ secretase complex, particularly NCSTN, account for few patients who exhibit familial forms of HS. Thus far, extensive genotype-phenotype correlations have been lacking. Objective To establish the prevalence of the NCSTN:c.671_682del variant and explore potential genotype-phenotype associations in an ethnically Maltese HS cohort. Design, Setting, and Participants This cross-sectional study conducted from December 2021 to September 2022 included patients 18 years or older with a diagnosis of HS as defined by recurrent nodules, abscesses, and/or draining tunnels in typical (axilla, breast, groin, buttock, thighs, and inframammary folds) and less typical (scalp, ear pinnae, neck, arms, antecubital fossae) sites who were recruited from the sole national dermatology reference center servicing the Maltese archipelago. Clinical examination and targeted genetic analysis for an NCSTN deletion that was originally identified through whole-exome sequencing in a family with multigenerational disease were performed. Exposure Recruited patients were phenotyped and genotyped for the NCSTN:c.671_682del variant. Main Outcome and Measures To determine the prevalence of the NCSTN:c.671_682del variant and establish possible genotype-phenotype associations in the ethnically Maltese HS cohort. Results A total of 113 patients with HS (56 women [49.6%]) met the inclusion criteria and were enrolled in this study. The median age of disease onset was 18 years (range, 7-62 years), and the median International Hidradenitis Suppurativa Severity Score System score was 4.39 (range, 1.0-64.0). The NCSTN variant was identified in the heterozygous state in 14 patients (12.4%) from 5 unrelated, nonconsanguineous families of Maltese ethnicity. The variant was not identified in an ethnically matched reference genomic data set of disease-free individuals. Variant carriers manifested HS symptoms earlier and were more likely to exhibit a distinctive HS phenotype, which was characterized by involvement of the scalp, neck, torso, and antecubital fossae. Despite manifesting similar clinical disease severity, variant carriers were more likely to require treatment with adalimumab. Conclusions and Relevance The results of this cross-sectional study suggest that monogenic variation in NCSTN is associated with HS in a subset of patients who have a distinct, atypical phenotype.
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Affiliation(s)
- Dillon Mintoff
- Department of Pathology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Department of Dermatology, Mater Dei Hospital, Msida, Malta
| | - Nikolai Paul Pace
- Department of Anatomy, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Isabella Borg
- Department of Pathology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
- Medical Genetics Section, Department of Pathology, Mater Dei Hospital, Msida, Malta
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Fontani F, Boano R, Cinti A, Demarchi B, Sandron S, Rampelli S, Candela M, Traversari M, Latorre A, Iacovera R, Abondio P, Sarno S, Mackie M, Collins M, Radini A, Milani C, Petrella E, Giampalma E, Minelli A, Larocca F, Cilli E, Luiselli D. Bioarchaeological and paleogenomic profiling of the unusual Neolithic burial from Grotta di Pietra Sant'Angelo (Calabria, Italy). Sci Rep 2023; 13:11978. [PMID: 37488251 PMCID: PMC10366206 DOI: 10.1038/s41598-023-39250-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/21/2023] [Indexed: 07/26/2023] Open
Abstract
The Neolithic burial of Grotta di Pietra Sant'Angelo (CS) represents a unique archaeological finding for the prehistory of Southern Italy. The unusual placement of the inhumation at a rather high altitude and far from inhabited areas, the lack of funerary equipment and the prone deposition of the body find limited similarities in coeval Italian sites. These elements have prompted wider questions on mortuary customs during the prehistory of Southern Italy. This atypical case requires an interdisciplinary approach aimed to build an integrated bioarchaeological profile of the individual. The paleopathological investigation of the skeletal remains revealed the presence of numerous markers that could be associated with craft activities, suggesting possible interpretations of the individual's lifestyle. CT analyses, carried out on the maxillary bones, showed the presence of a peculiar type of dental wear, but also a good density of the bone matrix. Biomolecular and micromorphological analyses of dental calculus highlight the presence of a rich Neolithic-like oral microbiome, the composition of which is consistent with the presence pathologies. Finally, paleogenomic data obtained from the individual were compared with ancient and modern Mediterranean populations, including unpublished high-resolution genome-wide data for 20 modern inhabitants of the nearby village of San Lorenzo Bellizzi, which provided interesting insights into the biodemographic landscape of the Neolithic in Southern Italy.
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Affiliation(s)
- Francesco Fontani
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy.
| | - Rosa Boano
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Alessandra Cinti
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Beatrice Demarchi
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Sarah Sandron
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Simone Rampelli
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
| | - Marco Candela
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
| | - Mirko Traversari
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy
| | - Adriana Latorre
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy
| | - Rocco Iacovera
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy
| | - Paolo Abondio
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Selmi 3, 40126, Bologna, Italy
| | - Stefania Sarno
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Selmi 3, 40126, Bologna, Italy
| | - Meaghan Mackie
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123, Torino, Italy
- Faculty of Health and Medical Sciences, The Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Blegdamsvej 3B, 2200, København, Denmark
- Faculty of Health and Medical Sciences, The Globe Institute, University of Copenhagen, Øster Farimagsgade 5, 1353, København, Denmark
- School of Archeology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Matthew Collins
- Faculty of Health and Medical Sciences, The Globe Institute, University of Copenhagen, Øster Farimagsgade 5, 1353, København, Denmark
- McDonald Institute for Archaeological Research, University of Cambridge, Downing Street, Cambridge, CB2 3ER, UK
| | - Anita Radini
- School of Archeology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Chantal Milani
- SIOF - Italian Society of Forensic Odontology, Strada Degli Schiocchi 12, 41124, Modena, Italy
| | - Enrico Petrella
- Radiology Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, Via Carlo Forlanini 34, 47121, Forlì, Italy
| | - Emanuela Giampalma
- Radiology Unit, Morgagni-Pierantoni Hospital, AUSL Romagna, Via Carlo Forlanini 34, 47121, Forlì, Italy
| | - Antonella Minelli
- Department of Humanities, Education and Social Sciences, University of Molise, Via Francesco De Sanctis, 86100, Campobasso, Italy
| | - Felice Larocca
- Speleo-Archaeological Research Group, University of Bari, Piazza Umberto I 1, 70121, Bari, Italy
- Speleo-Archaeological Research Centre "Enzo dei Medici", Via Lucania 3, 87070, Roseto Capo Spulico (CS), Italy
| | - Elisabetta Cilli
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy
| | - Donata Luiselli
- Department of Cultural Heritage, University of Bologna, Via Degli Ariani 1, 48121, Ravenna, Italy.
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APOE Allele Frequency in Southern Greece: Exploring the Role of Geographical Gradient in the Greek Population. Geriatrics (Basel) 2022; 8:geriatrics8010001. [PMID: 36648906 PMCID: PMC9844375 DOI: 10.3390/geriatrics8010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND the apolipoprotein e4 allele (APOE4) constitutes an established genetic risk factor for Alzheimer's Disease Dementia (ADD). We aimed to explore the frequency of the APOE isoforms in the Greek population of Southern Greece. METHODS peripheral blood from 175 Greek AD patients, 113 with mild cognitive impairment (MCI), and 75 healthy individuals. DNA isolation was performed with a High Pure PCR Template Kit (Roche), followed by amplification with a real-time qPCR kit (TIB MolBiol) in Roche's Light Cycler PCR platform. RESULTS APOE4 allele frequency was 20.57% in the ADD group, 17.69% in the MCI group, and 6.67% in the control group. APOE3/3 homozygosity was the most common genotype, while the frequency of APOE4/4 homozygosity was higher in the AD group (8.60%). APOE4 carrier status was associated with higher odds for ADD and MCI (OR: 4.49, 95% CI: [1.90-10.61] and OR: 3.82, 95% CI: [1.59-9.17], respectively). CONCLUSION this study examines the APOE isoforms and is the first to report a higher APOE frequency in MCI compared with healthy controls in southern Greece. Importantly, we report the occurrence of the APOE4 allele, related to ADD, as amongst the lowest globally reported, even within the nation, thus enhancing the theory of ethnicity and latitude contribution.
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Bruno F, Laganà V, Di Lorenzo R, Bruni AC, Maletta R. Calabria as a Genetic Isolate: A Model for the Study of Neurodegenerative Diseases. Biomedicines 2022; 10:biomedicines10092288. [PMID: 36140389 PMCID: PMC9496333 DOI: 10.3390/biomedicines10092288] [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: 08/20/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Although originally multi-ethnic in its structure, nowadays the Calabria region of southern Italy represents an area with low genetic heterogeneity and a high level of consanguinity that allows rare mutations to be maintained due to the founder effect. A complex research methodology—ranging from clinical activity to the genealogical reconstruction of families/populations across the centuries, the creation of databases, and molecular/genetic research—was modelled on the characteristics of the Calabrian population for more than three decades. This methodology allowed the identification of several novel genetic mutations or variants associated with neurodegenerative diseases. In addition, a higher prevalence of several hereditary neurodegenerative diseases has been reported in this population, such as Alzheimer’s disease, frontotemporal dementia, Parkinson’s disease, Niemann–Pick type C disease, spinocerebellar ataxia, Creutzfeldt–Jakob disease, and Gerstmann–Straussler–Scheinker disease. Here, we summarize and discuss the results of research data supporting the view that Calabria could be considered as a genetic isolate and could represent a model, a sort of outdoor laboratory—similar to very few places in the world—useful for the advancement of knowledge on neurodegenerative diseases.
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Affiliation(s)
- Francesco Bruno
- Regional Neurogenetic Centre (CRN), Department of Primary Care, ASP Catanzaro, 88046 Lamezia Terme, Italy
- Association for Neurogenetic Research (ARN), 88046 Lamezia Terme, Italy
- Correspondence: (F.B.); (A.C.B.)
| | - Valentina Laganà
- Association for Neurogenetic Research (ARN), 88046 Lamezia Terme, Italy
| | | | - Amalia C. Bruni
- Regional Neurogenetic Centre (CRN), Department of Primary Care, ASP Catanzaro, 88046 Lamezia Terme, Italy
- Association for Neurogenetic Research (ARN), 88046 Lamezia Terme, Italy
- Correspondence: (F.B.); (A.C.B.)
| | - Raffaele Maletta
- Regional Neurogenetic Centre (CRN), Department of Primary Care, ASP Catanzaro, 88046 Lamezia Terme, Italy
- Association for Neurogenetic Research (ARN), 88046 Lamezia Terme, Italy
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5
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Modi A, Vizzari MT, Catalano G, Boscolo Agostini R, Vai S, Lari M, Vergata C, Zaro V, Liccioli L, Fedi M, Barone S, Nigro L, Lancioni H, Achilli A, Sineo L, Caramelli D, Ghirotto S. Genetic structure and differentiation from early bronze age in the mediterranean island of sicily: Insights from ancient mitochondrial genomes. Front Genet 2022; 13:945227. [PMID: 36159977 PMCID: PMC9500526 DOI: 10.3389/fgene.2022.945227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Sicily is one of the main islands of the Mediterranean Sea, and it is characterized by a variety of archaeological records, material culture and traditions, reflecting the history of migrations and populations’ interaction since its first colonization, during the Paleolithic. These deep and complex demographic and cultural dynamics should have affected the genomic landscape of Sicily at different levels; however, the relative impact of these migrations on the genomic structure and differentiation within the island remains largely unknown. The available Sicilian modern genetic data gave a picture of the current genetic structure, but the paucity of ancient data did not allow so far to make predictions about the level of historical variation. In this work, we sequenced and analyzed the complete mitochondrial genomes of 36 individuals from five different locations in Sicily, spanning from Early Bronze Age to Iron Age, and with different cultural backgrounds. The comparison with coeval groups from the Mediterranean Basin highlighted structured genetic variation in Sicily since Early Bronze Age, thus supporting a demic impact of the cultural transitions within the Island. Explicit model testing through Approximate Bayesian Computation allowed us to make predictions about the origin of Sicanians, one of the three indigenous peoples of Sicily, whose foreign origin from Spain, historically attributed, was not confirmed by our analysis of genetic data. Sicilian modern mitochondrial data show a different, more homogeneous, genetic composition, calling for a recent genetic replacement in the Island of pre-Iron Age populations, that should be further investigated.
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Affiliation(s)
- Alessandra Modi
- Department of Biology, University of Florence, Firenze, Italy
- *Correspondence: Alessandra Modi, ; Silvia Ghirotto,
| | - Maria Teresa Vizzari
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giulio Catalano
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy
| | | | - Stefania Vai
- Department of Biology, University of Florence, Firenze, Italy
| | - Martina Lari
- Department of Biology, University of Florence, Firenze, Italy
| | - Chiara Vergata
- Department of Biology, University of Florence, Firenze, Italy
| | - Valentina Zaro
- Department of Biology, University of Florence, Firenze, Italy
| | - Lucia Liccioli
- INFN (Istituto Nazionale di Fisica Nucleare) Sezione di Firenze, Firenze, Italy
| | - Mariaelena Fedi
- INFN (Istituto Nazionale di Fisica Nucleare) Sezione di Firenze, Firenze, Italy
| | - Serena Barone
- INFN (Istituto Nazionale di Fisica Nucleare) Sezione di Firenze, Firenze, Italy
- Department of Physics and Astronomy, University of Florence, Florence, Italy
| | - Lorenzo Nigro
- Department “Italian Institute of Oriental Studies—ISO”, Sapienza University of Rome, Rome, Italy
| | - Hovirag Lancioni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Alessandro Achilli
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia, Italy
| | - Luca Sineo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy
| | - David Caramelli
- Department of Biology, University of Florence, Firenze, Italy
| | - Silvia Ghirotto
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- *Correspondence: Alessandra Modi, ; Silvia Ghirotto,
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6
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Genotype-phenotype correlation in Tunisian patients with Amyotrophic Lateral Sclerosis. Neurobiol Aging 2022; 120:27-33. [DOI: 10.1016/j.neurobiolaging.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/31/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022]
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7
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Revealing the recent demographic history of Europe via haplotype sharing in the UK Biobank. Proc Natl Acad Sci U S A 2022; 119:e2119281119. [PMID: 35696575 PMCID: PMC9233301 DOI: 10.1073/pnas.2119281119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Haplotype-based analyses have recently been leveraged to interrogate the fine-scale structure in specific geographic regions, notably in Europe, although an equivalent haplotype-based understanding across the whole of Europe with these tools is lacking. Furthermore, study of identity-by-descent (IBD) sharing in a large sample of haplotypes across Europe would allow a direct comparison between different demographic histories of different regions. The UK Biobank (UKBB) is a population-scale dataset of genotype and phenotype data collected from the United Kingdom, with established sampling of worldwide ancestries. The exact content of these non-UK ancestries is largely uncharacterized, where study could highlight valuable intracontinental ancestry references with deep phenotyping within the UKBB. In this context, we sought to investigate the sample of European ancestry captured in the UKBB. We studied the haplotypes of 5,500 UKBB individuals with a European birthplace; investigated the population structure and demographic history in Europe, showing in parallel the variety of footprints of demographic history in different genetic regions around Europe; and expand knowledge of the genetic landscape of the east and southeast of Europe. Providing an updated map of European genetics, we leverage IBD-segment sharing to explore the extent of population isolation and size across the continent. In addition to building and expanding upon previous knowledge in Europe, our results show the UKBB as a source of diverse ancestries beyond Britain. These worldwide ancestries sampled in the UKBB may complement and inform researchers interested in specific communities or regions not limited to Britain.
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8
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Assessing temporal and geographic contacts across the Adriatic Sea through the analysis of genome-wide data from Southern Italy. Genomics 2022; 114:110405. [PMID: 35709925 DOI: 10.1016/j.ygeno.2022.110405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/01/2022] [Accepted: 06/09/2022] [Indexed: 11/22/2022]
Abstract
Southern Italy was characterised by a complex prehistory that started with different Palaeolithic cultures, later followed by the Neolithization and the demic dispersal from the Pontic-Caspian Steppe during the Bronze Age. Archaeological and historical evidences point to a link between Southern Italians and the Balkans still present in modern times. To shed light on these dynamics, we analysed around 700 South Mediterranean genomes combined with informative ancient DNAs. Our findings revealed high affinities of South-Eastern Italians with modern Eastern Peloponnesians, and a closer affinity of ancient Greek genomes with those from specific regions of South Italy than modern Greek genomes. The higher similarity could be associated with a Bronze Age component ultimately originating from the Caucasus with high Iranian and Anatolian Neolithic ancestries. Furthermore, extremely differentiated allele frequencies among Northern and Southern Italy revealed putatively adapted SNPs in genes involved in alcohol metabolism, nevi features and immunological traits.
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Clinical Network for Big Data and Personalized Health: Study Protocol and Preliminary Results. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116365. [PMID: 35681950 PMCID: PMC9180513 DOI: 10.3390/ijerph19116365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/09/2022] [Accepted: 05/20/2022] [Indexed: 11/28/2022]
Abstract
The use of secondary hospital-based clinical data and electronical health records (EHR) represent a cost-efficient alternative to investigate chronic conditions. We present the Clinical Network Big Data and Personalised Health project, which collects EHRs for patients accessing hospitals in Central-Southern Italy, through an integrated digital platform to create a digital hub for the collection, management and analysis of personal, clinical and environmental information for patients, associated with a biobank to perform multi-omic analyses. A total of 12,864 participants (61.7% women, mean age 52.6 ± 17.6 years) signed a written informed consent to allow access to their EHRs. The majority of hospital access was in obstetrics and gynaecology (36.3%), while the main reason for hospitalization was represented by diseases of the circulatory system (21.2%). Participants had a secondary education (63.5%), were mostly retired (25.45%), reported low levels of physical activity (59.6%), had low adherence to the Mediterranean diet and were smokers (30.2%). A large percentage (35.8%) were overweight and the prevalence of hypertension, diabetes and hyperlipidemia was 36.4%, 11.1% and 19.6%, respectively. Blood samples were retrieved for 8686 patients (67.5%). This project is aimed at creating a digital hub for the collection, management and analysis of personal, clinical, diagnostic and environmental information for patients, and is associated with a biobank to perform multi-omic analyses.
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10
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An archetype for evolving dynamics of primitive human culture. EVOLVING SYSTEMS 2021. [DOI: 10.1007/s12530-020-09355-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Serrano JG, Ordóñez AC, Fregel R. Paleogenomics of the prehistory of Europe: human migrations, domestication and disease. Ann Hum Biol 2021; 48:179-190. [PMID: 34459342 DOI: 10.1080/03014460.2021.1942205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A substantial portion of ancient DNA research has been centred on understanding European populations' origin and evolution. A rchaeological evidence has already shown that the peopling of Europe involved an intricate pattern of demic and/or cultural diffusion since the Upper Palaeolithic, which became more evident during the Neolithic and Bronze Age periods. However, ancient DNA data has been crucial in determining if cultural changes occurred due to the movement of ideas or people. With the advent of next-generation sequencing and population-based paleogenomic research, ancient DNA studies have been directed not only at the study of continental human migrations, but also to the detailed analysis of particular archaeological sites, the processes of domestication, or the spread of disease during prehistoric times. With this vast paleogenomic effort added to a proper archaeological contextualisation of results, a deeper understanding of Europe's peopling is starting to emanate.
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Affiliation(s)
- Javier G Serrano
- Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Faculta de Ciencias, Universidad de La Laguna, La Laguna, Spain
| | - Alejandra C Ordóñez
- Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Faculta de Ciencias, Universidad de La Laguna, La Laguna, Spain.,Departamento Geografía e Historia, Facultad de Humanidades, Universidad de La Laguna, La Laguna, Spain
| | - Rosa Fregel
- Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Faculta de Ciencias, Universidad de La Laguna, La Laguna, Spain
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12
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Archaeogenetics and Landscape Dynamics in Sicily during the Holocene: A Review. SUSTAINABILITY 2021. [DOI: 10.3390/su13179469] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Mediterranean islands and their population history are of considerable importance to the interpretation of the population history of Europe as a whole. In this context, Sicily, because of its geographic position, represents a bridge between Africa, the Near East, and Europe that led to the stratification of settlements and admixture events. The genetic analysis of extant and ancient human samples has tried to reconstruct the population dynamics associated with the cultural and demographic changes that took place during the prehistory and history of Sicily. In turn, genetic, demographic and cultural changes need to be understood in the context of the environmental changes that took place over the Holocene. Based on this framework, this paper aims to discuss the cultural and demographic dimension of the island by reviewing archaeogenetic studies, and lastly, we discuss the ecological constraints related to human peopling in times of change in landscapes that occurred on the island in various periods. Finally, possible directions for future archaeogenetic studies of Sicily are discussed. Despite its long human history, Sicily is still one of the world’s biodiversity hotspots. The lessons we learn from the past use of landscape provide models for sustainable future management of the Mediterranean’s landscapes.
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13
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Aneli S, Caldon M, Saupe T, Montinaro F, Pagani L. Through 40,000 years of human presence in Southern Europe: the Italian case study. Hum Genet 2021; 140:1417-1431. [PMID: 34410492 PMCID: PMC8460580 DOI: 10.1007/s00439-021-02328-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/29/2021] [Indexed: 12/16/2022]
Abstract
The Italian Peninsula, a natural pier across the Mediterranean Sea, witnessed intricate population events since the very beginning of the human occupation in Europe. In the last few years, an increasing number of modern and ancient genomes from the area have been published by the international research community. This genomic perspective started unveiling the relevance of Italy to understand the post-Last Glacial Maximum (LGM) re-peopling of Europe, the earlier phase of the Neolithic westward migrations, and its linking role between Eastern and Western Mediterranean areas after the Iron Age. However, many open questions are still waiting for more data to be addressed in full. With this review, we summarize the current knowledge emerging from the available ancient Italian individuals and, by re-analysing them all at once, we try to shed light on the avenues future research in the area should cover. In particular, open questions concern (1) the fate of pre-Villabruna Europeans and to what extent their genomic components were absorbed by the post-LGM hunter-gatherers; (2) the role of Sicily and Sardinia before LGM; (3) to what degree the documented genetic structure within the Early Neolithic settlers can be described as two separate migrations; (4) what are the population events behind the marked presence of an Iranian Neolithic-like component in Bronze Age and Iron Age Italian and Southern European samples.
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Affiliation(s)
- Serena Aneli
- Department of Biology, University of Padova, Via Ugo Bassi, 58/B, 35131, Padova, Italy.
| | - Matteo Caldon
- Department of Biology, University of Padova, Via Ugo Bassi, 58/B, 35131, Padova, Italy
| | - Tina Saupe
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010, Tartu, Estonia
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010, Tartu, Estonia.,Department of Biology-Genetics, University of Bari, Via Edoardo Orabona 4, 70125, Bari, Italy
| | - Luca Pagani
- Department of Biology, University of Padova, Via Ugo Bassi, 58/B, 35131, Padova, Italy.,Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23b, 51010, Tartu, Estonia
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14
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Curcio A, Malovini A, Mazzanti A, Memmi M, Gambelli P, La Rosa F, Bloise R, Indolfi C, Bellazzi R, Napolitano C. Identification of a SCN5A founder mutation causing sudden death, Brugada syndrome, and conduction blocks in Southern Italy. Heart Rhythm 2021; 18:1698-1706. [PMID: 34245912 DOI: 10.1016/j.hrthm.2021.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND The genetic architecture of Brugada syndrome (BrS) is emerging as an increasingly complex area of investigation. The identification of genetically homogeneous populations can provide mechanistic insights and improve genotype-phenotype correlation. OBJECTIVE To characterize and define the clinical implications of a novel BrS founder mutation. Using a haplotype-based approach we investigated whether 2 SCN5A genetic variants could derive from founder events. METHODS Single nucleotide polymorphisms were genotyped in 201 subjects, haplotypes reconstructed, and mutational age estimated. Clinical phenotypes and historical records were collected. RESULTS A SCN5A variant (c.3352C>T; p.Gln1118Ter) was identified in 3 probands with BrS originating from south Italy. The same mutation was identified in a proband from central Italy and in 1 U.S. resident subject with Italian ancestry. The 5 individuals carried a common core haplotype, whose frequency was extremely low in local noncarrier probands and in population controls (0%-6.06%). The clinical presentation included multigenerational dominant transmission of Brugada electrocardiographic pattern, high incidence of sudden cardiac death (SCD), and cardiac conduction defects (CCD). We reconstructed 7-generation pedigrees with common geographic origin. Variant's age estimates suggested that origin of the p.Gln1118Ter dates back 76 generations (95% confidence interval: 28-200). A second SCN5A variant (c.5350G>A; p.Glu1784Lys) identified in the region did not show similar founder signal. CONCLUSION p.Gln1118Ter is a novel BrS/CCD/SCD founder mutation. We illustrate how these findings provide insights on the inheritance patterns and phenotypes associated with SCN5A mutation.
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Affiliation(s)
- Antonio Curcio
- Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Alberto Malovini
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Andrea Mazzanti
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy; Department of Molecular Medicine, University of Pavia, Pavia, Italy; European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart (ERN GUARD-Heart)
| | - Mirella Memmi
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Patrick Gambelli
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Francesca La Rosa
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Raffaella Bloise
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Ciro Indolfi
- Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy; Mediterranea Cardiocentro, Naples, Italy
| | - Riccardo Bellazzi
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy; Faculty of Engineering, University of Pavia, Pavia, Italy
| | - Carlo Napolitano
- Molecular Cardiology, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy; Department of Molecular Medicine, University of Pavia, Pavia, Italy; European Reference Network for Rare and Low Prevalence Complex Diseases of the Heart (ERN GUARD-Heart).
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15
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Saupe T, Montinaro F, Scaggion C, Carrara N, Kivisild T, D'Atanasio E, Hui R, Solnik A, Lebrasseur O, Larson G, Alessandri L, Arienzo I, De Angelis F, Rolfo MF, Skeates R, Silvestri L, Beckett J, Talamo S, Dolfini A, Miari M, Metspalu M, Benazzi S, Capelli C, Pagani L, Scheib CL. Ancient genomes reveal structural shifts after the arrival of Steppe-related ancestry in the Italian Peninsula. Curr Biol 2021; 31:2576-2591.e12. [PMID: 33974848 DOI: 10.1016/j.cub.2021.04.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 11/28/2020] [Accepted: 04/09/2021] [Indexed: 12/30/2022]
Abstract
Across Europe, the genetics of the Chalcolithic/Bronze Age transition is increasingly characterized in terms of an influx of Steppe-related ancestry. The effect of this major shift on the genetic structure of populations in the Italian Peninsula remains underexplored. Here, genome-wide shotgun data for 22 individuals from commingled cave and single burials in Northeastern and Central Italy dated between 3200 and 1500 BCE provide the first genomic characterization of Bronze Age individuals (n = 8; 0.001-1.2× coverage) from the central Italian Peninsula, filling a gap in the literature between 1950 and 1500 BCE. Our study confirms a diversity of ancestry components during the Chalcolithic and the arrival of Steppe-related ancestry in the central Italian Peninsula as early as 1600 BCE, with this ancestry component increasing through time. We detect close patrilineal kinship in the burial patterns of Chalcolithic commingled cave burials and a shift away from this in the Bronze Age (2200-900 BCE) along with lowered runs of homozygosity, which may reflect larger changes in population structure. Finally, we find no evidence that the arrival of Steppe-related ancestry in Central Italy directly led to changes in frequency of 115 phenotypes present in the dataset, rather that the post-Roman Imperial period had a stronger influence, particularly on the frequency of variants associated with protection against Hansen's disease (leprosy). Our study provides a closer look at local dynamics of demography and phenotypic shifts as they occurred as part of a broader phenomenon of widespread admixture during the Chalcolithic/Bronze Age transition.
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Affiliation(s)
- Tina Saupe
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia.
| | - Francesco Montinaro
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia; Department of Biology-Genetics, University of Bari, Via E. Orabona, 4, Bari 70124, Italy
| | - Cinzia Scaggion
- Department of Geosciences, University of Padova, Via Gradenigo 6, Padova 35131, Italy
| | - Nicola Carrara
- Museum of Anthropology, University of Padova, Palazzo Cavalli, via Giotto 1, Padova 35121, Italy
| | - Toomas Kivisild
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia; Department of Human Genetics, KU Leuven, Leuven, Herestraat 49 3000, Belgium
| | - Eugenia D'Atanasio
- Institute of Molecular Biology and Pathology, CNR, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Ruoyun Hui
- McDonald Institute for Archaeological Research, University of Cambridge, Downing Street, Cambridge CB2 3ER, UK
| | - Anu Solnik
- Core Facility, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia
| | - Ophélie Lebrasseur
- Department of Archaeology, Classics and Egyptology, University of Liverpool, 12-14 Abercromby Square, Liverpool L69 7WZ, UK; Palaeogenomics & Bio-Archaeology Research Network, School of Archaeology, University of Oxford, 1 South Parks Road, Oxford OX1 3TG, UK
| | - Greger Larson
- Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Via Diocleziano 328, Naples 80125, Italy
| | - Luca Alessandri
- Groningen Institute of Archaeology, University of Groningen, Poststraat 6, Groningen 9712, the Netherlands
| | - Ilenia Arienzo
- Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Via Diocleziano 328, Naples 80125, Italy
| | - Flavio De Angelis
- Centre of Molecular Anthropology for Ancient DNA Studies, Department of Biology, University of Rome "Tor Vergata," Via della Ricerca Scientifica 1, Rome 00133, Italy
| | - Mario Federico Rolfo
- Department of History, Culture and Society, University of Rome "Tor Vergata," Via Columbia 1, Rome 00133, Italy
| | - Robin Skeates
- Department of Archaeology, Durham University, Lower Mountjoy, South Road, Durham DH1 3LE, UK
| | - Letizia Silvestri
- Department of History, Culture and Society, University of Rome "Tor Vergata," Via Columbia 1, Rome 00133, Italy
| | | | - Sahra Talamo
- Department of Chemistry "Giacomo Ciamician," University of Bologna, Via Selmi 2, Bologna 40126, Italy; Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig 04103, Germany
| | - Andrea Dolfini
- School of History, Classics and Archaeology, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Monica Miari
- Superintendency of Archeology, Fine Arts and Landscape for the metropolitan city of Bologna and the provinces of Modena, Reggio Emilia and Ferrara, Comune di Bologna, Sede Via Belle Arti n. 52, Bologna 40126, Italy
| | - Mait Metspalu
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia
| | - Stefano Benazzi
- Department of Cultural Heritage, University of Bologna, Via degli Ariani, 1, Ravenna 40126, Italy
| | - Cristian Capelli
- Department of Zoology, University of Oxford, 11a Mansfield Road, Oxford OX1 3SZ, UK; Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, University of Parma, Parco Area delle Scienze 17/A, Parma 43124, Italy
| | - Luca Pagani
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia; Department of Biology, University of Padova, Via U. Bassi, 58/B, Padova 35122, Italy
| | - Christiana L Scheib
- Estonian Biocentre, Institute of Genomics, University of Tartu, Riia 23B, Tartu 51010, Estonia; St. John's College, University of Cambridge, St. John's Street, Cambridge CB2 1TP, UK.
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16
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Sarno S, Boscolo Agostini R, De Fanti S, Ferri G, Ghirotto S, Modenini G, Pettener D, Boattini A. Y-chromosome variability and genetic history of Commons from Northern Italy. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 175:665-679. [PMID: 33969895 PMCID: PMC8360088 DOI: 10.1002/ajpa.24302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/19/2021] [Accepted: 04/17/2021] [Indexed: 12/31/2022]
Abstract
Objectives Genetic drift and admixture are driving forces in human evolution, but their concerted impact to population evolution in historical times and at a micro‐geographic scale is poorly assessed. In this study we test a demographic model encompassing both admixture and drift to the case of social‐cultural isolates such as the so‐called “Commons.” Materials and methods Commons are peculiar institutions of medieval origins whose key feature is the tight relationship between population and territory, mediated by the collective property of shared resources. Here, we analyze the Y‐chromosomal genetic structure of four Commons (for a total of 366 samples) from the Central and Eastern Padana plain in Northern Italy. Results Our results reveal that all these groups exhibit patterns of significant diversity reduction, peripheral/outlier position within the Italian/European genetic space and high frequency of Common‐specific haplogroups. By explicitly testing different drift‐admixture models, we show that a drift‐only model is more probable for Central Padana Commons, while additional admixture (~20%) from external population around the same time of their foundation cannot be excluded for the Eastern ones. Discussion Building on these results, we suggest central Middle Ages as the most probable age of foundation for three of the considered Commons, the remaining one pointing to late antiquity. We conclude that an admixture‐drift model is particularly useful for interpreting the genetic structure and recent demographic history of small‐scale populations in which social‐cultural features play a significant role.
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Affiliation(s)
- Stefania Sarno
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | | | - Sara De Fanti
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy.,Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy
| | - Gianmarco Ferri
- Department of Diagnostic and Clinical Medicine and Public Health, University of Modena and Reggio Emilia, Modena, Italy
| | - Silvia Ghirotto
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giorgia Modenini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Davide Pettener
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Alessio Boattini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
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17
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First Bronze Age Human Mitogenomes from Calabria (Grotta Della Monaca, Southern Italy). Genes (Basel) 2021; 12:genes12050636. [PMID: 33922908 PMCID: PMC8146030 DOI: 10.3390/genes12050636] [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] [Received: 02/26/2021] [Revised: 04/02/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022] Open
Abstract
The Italian peninsula was host to a strong history of migration processes that shaped its genomic variability since prehistoric times. During the Metal Age, Sicily and Southern Italy were the protagonists of intense trade networks and settlements along the Mediterranean. Nonetheless, ancient DNA studies in Southern Italy are, at present, still limited to prehistoric and Roman Apulia. Here, we present the first mitogenomes from a Middle Bronze Age cave burial in Calabria to address this knowledge gap. We adopted a hybridization capture approach, which enabled the recovery of one complete and one partial mitochondrial genome. Phylogenetic analysis assigned these two individuals to the H1e and H5 subhaplogroups, respectively. This preliminary phylogenetic analysis supports affinities with coeval Sicilian populations, along with Linearbandkeramik and Bell Beaker cultures maternal lineages from Central Europe and Iberia. Our work represents a starting point which contributes to the comprehension of migrations and population dynamics in Southern Italy, and highlights this knowledge gap yet to be filled by genomic studies.
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18
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Hernández CL, Pita G, Cavadas B, López S, Sánchez-Martínez LJ, Dugoujon JM, Novelletto A, Cuesta P, Pereira L, Calderón R. Human Genomic Diversity Where the Mediterranean Joins the Atlantic. Mol Biol Evol 2021; 37:1041-1055. [PMID: 31816048 PMCID: PMC7086172 DOI: 10.1093/molbev/msz288] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Throughout the past few years, a lively debate emerged about the timing and magnitude of the human migrations between the Iberian Peninsula and the Maghreb. Several pieces of evidence, including archaeological, anthropological, historical, and genetic data, have pointed to a complex and intermingled evolutionary history in the western Mediterranean area. To study to what extent connections across the Strait of Gibraltar and surrounding areas have shaped the present-day genomic diversity of its populations, we have performed a screening of 2.5 million single-nucleotide polymorphisms in 142 samples from southern Spain, southern Portugal, and Morocco. We built comprehensive data sets of the studied area and we implemented multistep bioinformatic approaches to assess population structure, demographic histories, and admixture dynamics. Both local and global ancestry inference showed an internal substructure in the Iberian Peninsula, mainly linked to a differential African ancestry. Western Iberia, from southern Portugal to Galicia, constituted an independent cluster within Iberia characterized by an enriched African genomic input. Migration time modeling showed recent historic dates for the admixture events occurring both in Iberia and in the North of Africa. However, an integrative vision of both paleogenomic and modern DNA data allowed us to detect chronological transitions and population turnovers that could be the result of transcontinental migrations dating back from Neolithic times. The present contribution aimed to fill the gaps in the modern human genomic record of a key geographic area, where the Mediterranean and the Atlantic come together.
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Affiliation(s)
- Candela L Hernández
- Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | - Guillermo Pita
- Human Genotyping Unit-CeGen, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Bruno Cavadas
- 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
| | - Saioa López
- UCL Cancer Institute, London, United Kingdom
| | - Luis J Sánchez-Martínez
- Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense, Madrid, Spain
| | - Jean-Michel Dugoujon
- CNRS UMR 5288 Laboratoire d'Anthropologie Moléculaire et d'Imagerie de Synthèse (AMIS), Université Paul Sabatier Toulouse III, Toulouse, France
| | | | - Pedro Cuesta
- Centro de Proceso de Datos, Universidad Complutense, Madrid, Spain
| | - Luisa 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
| | - Rosario Calderón
- Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense, Madrid, Spain
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19
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Sarno S, Petrilli R, Abondio P, De Giovanni A, Boattini A, Sazzini M, De Fanti S, Cilli E, Ciani G, Gentilini D, Pettener D, Romeo G, Giuliani C, Luiselli D. Genetic history of Calabrian Greeks reveals ancient events and long term isolation in the Aspromonte area of Southern Italy. Sci Rep 2021; 11:3045. [PMID: 33542324 PMCID: PMC7862261 DOI: 10.1038/s41598-021-82591-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/15/2021] [Indexed: 01/30/2023] Open
Abstract
Calabrian Greeks are an enigmatic population that have preserved and evolved a unique variety of language, Greco, survived in the isolated Aspromonte mountain area of Southern Italy. To understand their genetic ancestry and explore possible effects of geographic and cultural isolation, we genome-wide genotyped a large set of South Italian samples including both communities that still speak Greco nowadays and those that lost the use of this language earlier in time. Comparisons with modern and ancient populations highlighted ancient, long-lasting genetic links with Eastern Mediterranean and Caucasian/Near-Eastern groups as ancestral sources of Southern Italians. Our results suggest that the Aspromonte communities might be interpreted as genetically drifted remnants that departed from such ancient genetic background as a consequence of long-term isolation. Specific patterns of population structuring and higher levels of genetic drift were indeed observed in these populations, reflecting geographic isolation amplified by cultural differences in the groups that still conserve the Greco language. Isolation and drift also affected the current genetic differentiation at specific gene pathways, prompting for future genome-wide association studies aimed at exploring trait-related loci that have drifted up in frequency in these isolated groups.
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Affiliation(s)
- Stefania Sarno
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Rosalba Petrilli
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Paolo Abondio
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Andrea De Giovanni
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy ,grid.6292.f0000 0004 1757 1758Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Alessio Boattini
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Marco Sazzini
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy ,grid.6292.f0000 0004 1757 1758Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy
| | - Sara De Fanti
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy ,grid.6292.f0000 0004 1757 1758Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy
| | - Elisabetta Cilli
- grid.6292.f0000 0004 1757 1758Department of Cultural Heritage, University of Bologna, Ravenna, Italy
| | - Graziella Ciani
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Davide Gentilini
- grid.8982.b0000 0004 1762 5736Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy ,Italian Auxologic Institute IRCCS, Cusano Milanino, Milan, Italy
| | - Davide Pettener
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Giovanni Romeo
- grid.412311.4Medical Genetics Unit, Sant’Orsola-Malpighi University Hospital, Bologna, Italy ,European School of Genetic Medicine, Bologna, Italy
| | - Cristina Giuliani
- grid.6292.f0000 0004 1757 1758Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy ,grid.6292.f0000 0004 1757 1758Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy
| | - Donata Luiselli
- grid.6292.f0000 0004 1757 1758Department of Cultural Heritage, University of Bologna, Ravenna, Italy
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20
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Borg R, Farrugia Wismayer M, Bonavia K, Farrugia Wismayer A, Vella M, van Vugt JJFA, Kenna BJ, Kenna KP, Vassallo N, Veldink JH, Cauchi RJ. Genetic analysis of ALS cases in the isolated island population of Malta. Eur J Hum Genet 2021; 29:604-614. [PMID: 33414559 PMCID: PMC8115635 DOI: 10.1038/s41431-020-00767-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 10/16/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022] Open
Abstract
Genetic isolates are compelling tools for mapping genes of inherited disorders. The archipelago of Malta, a sovereign microstate in the south of Europe is home to a geographically and culturally isolated population. Here, we investigate the epidemiology and genetic profile of Maltese patients with amyotrophic lateral sclerosis (ALS), identified throughout a 2-year window. Cases were largely male (66.7%) with a predominant spinal onset of symptoms (70.8%). Disease onset occurred around mid-age (median age: 64 years, men; 59.5 years, female); 12.5% had familial ALS (fALS). Annual incidence rate was 2.48 (95% CI 1.59–3.68) per 100,000 person-years. Male-to-female incidence ratio was 1.93:1. Prevalence was 3.44 (95% CI 2.01–5.52) cases per 100,000 inhabitants on 31st December 2018. Whole-genome sequencing allowed us to determine rare DNA variants that change the protein-coding sequence of ALS-associated genes. Interestingly, the Maltese ALS patient cohort was found to be negative for deleterious variants in C9orf72, SOD1, TARDBP or FUS genes, which are the most commonly mutated ALS genes globally. Nonetheless, ALS-associated repeat expansions were identified in ATXN2 and NIPA1. Variants predicted to be damaging were also detected in ALS2, DAO, DCTN1, ERBB4, SETX, SCFD1 and SPG11. A total of 40% of patients with sporadic ALS had a rare and deleterious variant or repeat expansion in an ALS-associated gene, whilst the genetic cause of two thirds of fALS cases could not be pinpointed to known ALS genes or risk loci. This warrants further studies to elucidate novel genes that cause ALS in this unique population isolate.
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Affiliation(s)
- Rebecca Borg
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta.,Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Maia Farrugia Wismayer
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta.,Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Karl Bonavia
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta
| | - Andrew Farrugia Wismayer
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta
| | - Malcolm Vella
- Department of Neuroscience, Mater Dei Hospital, Msida, Malta
| | - Joke J F A van Vugt
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Brendan J Kenna
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kevin P Kenna
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Neville Vassallo
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta.,Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Jan H Veldink
- Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ruben J Cauchi
- Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta. .,Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
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21
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Toyama KS, Crochet P, Leblois R. Sampling schemes and drift can bias admixture proportions inferred by
structure. Mol Ecol Resour 2020; 20:1769-1785. [DOI: 10.1111/1755-0998.13234] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 07/17/2020] [Accepted: 07/24/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Ken S. Toyama
- Department of Ecology and Evolutionary Biology University of Toronto Toronto ON Canada
| | - Pierre‐André Crochet
- CEFE CNRS University of Montpellier Université Paul Valéry Montpellier 3 EPHE IRD Montpellier France
| | - Raphaël Leblois
- CBGP INRAE CIRAD IRD Montpellier SupAgro University of Montpellier Montpellier France
- Institut de Biologie Computationnelle University of Montpellier Montpellier France
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22
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Mediterranean precipitation isoscape preserved in bone collagen δ 2H. Sci Rep 2020; 10:8579. [PMID: 32444789 PMCID: PMC7244594 DOI: 10.1038/s41598-020-65407-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 05/04/2020] [Indexed: 11/08/2022] Open
Abstract
The prehistory of the Mediterranean region has long been a subject of considerable interest, particularly the links between human groups and regions of origin. We utilize the spatial variation in the δ2H and δ18O values of precipitation (isoscapes) to develop proxies for geographic locations of fauna and humans. Bone collagen hydrogen isotope ratios (δ2H) in cattle (and to a lesser extent, ovicaprids) across the Mediterranean reflect the isotopic differences observed in rainfall (but δ18O values do not). We conclude that δ2H in herbivore bone collagen can be used as a geolocation tracer and for palaeoenvironmental studies such as tracing past isotopic variations in the global hydrological cycle. In contrast, human bone δ2H values are relatively tightly grouped and highly distinct from precipitation δ2H values, likely due to human-specific food practices and environmental modifications. Given the inter-species variability in δ2H, care should be taken in the species selected for study.
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23
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Sazzini M, Abondio P, Sarno S, Gnecchi-Ruscone GA, Ragno M, Giuliani C, De Fanti S, Ojeda-Granados C, Boattini A, Marquis J, Valsesia A, Carayol J, Raymond F, Pirazzini C, Marasco E, Ferrarini A, Xumerle L, Collino S, Mari D, Arosio B, Monti D, Passarino G, D'Aquila P, Pettener D, Luiselli D, Castellani G, Delledonne M, Descombes P, Franceschi C, Garagnani P. Genomic history of the Italian population recapitulates key evolutionary dynamics of both Continental and Southern Europeans. BMC Biol 2020; 18:51. [PMID: 32438927 PMCID: PMC7243322 DOI: 10.1186/s12915-020-00778-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 04/01/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The cline of human genetic diversity observable across Europe is recapitulated at a micro-geographic scale by variation within the Italian population. Besides resulting from extensive gene flow, this might be ascribable also to local adaptations to diverse ecological contexts evolved by people who anciently spread along the Italian Peninsula. Dissecting the evolutionary history of the ancestors of present-day Italians may thus improve the understanding of demographic and biological processes that contributed to shape the gene pool of European populations. However, previous SNP array-based studies failed to investigate the full spectrum of Italian variation, generally neglecting low-frequency genetic variants and examining a limited set of small effect size alleles, which may represent important determinants of population structure and complex adaptive traits. To overcome these issues, we analyzed 38 high-coverage whole-genome sequences representative of population clusters at the opposite ends of the cline of Italian variation, along with a large panel of modern and ancient Euro-Mediterranean genomes. RESULTS We provided evidence for the early divergence of Italian groups dating back to the Late Glacial and for Neolithic and distinct Bronze Age migrations having further differentiated their gene pools. We inferred adaptive evolution at insulin-related loci in people from Italian regions with a temperate climate, while possible adaptations to pathogens and ultraviolet radiation were observed in Mediterranean Italians. Some of these adaptive events may also have secondarily modulated population disease or longevity predisposition. CONCLUSIONS We disentangled the contribution of multiple migratory and adaptive events in shaping the heterogeneous Italian genomic background, which exemplify population dynamics and gene-environment interactions that played significant roles also in the formation of the Continental and Southern European genomic landscapes.
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Affiliation(s)
- Marco Sazzini
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy.
- Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy.
| | - Paolo Abondio
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Stefania Sarno
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | | | - Matteo Ragno
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Cristina Giuliani
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Sara De Fanti
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Claudia Ojeda-Granados
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
- Department of Molecular Biology in Medicine, Civil Hospital of Guadalajara "Fray Antonio Alcalde" and Health Sciences Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Alessio Boattini
- Laboratory of Molecular Anthropology & Centre for Genome Biology, Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Julien Marquis
- Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
- Current Address: Lausanne Genomic Technologies Facility, University of Lausanne, Lausanne, Switzerland
| | - Armand Valsesia
- Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Jerome Carayol
- Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | | | - Chiara Pirazzini
- IRCCS Bologna Institute of Neurological Sciences, Bologna, Italy
| | - Elena Marasco
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy
- Applied Biomedical Research Center (CRBA), S. Orsola-Malpighi Polyclinic, Bologna, Italy
| | - Alberto Ferrarini
- Functional Genomics Laboratory, Department of Biotechnology, University of Verona, Verona, Italy
- Current Address: Menarini Silicon Biosystems SpA, Castel Maggiore, Bologna, Italy
| | - Luciano Xumerle
- Functional Genomics Laboratory, Department of Biotechnology, University of Verona, Verona, Italy
| | | | - Daniela Mari
- Geriatric Unit, Fondazione Ca' Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - Beatrice Arosio
- Geriatric Unit, Fondazione Ca' Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniela Monti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Giuseppe Passarino
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Patrizia D'Aquila
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Davide Pettener
- Laboratory of Molecular Anthropology & 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
| | - Gastone Castellani
- Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Massimo Delledonne
- Functional Genomics Laboratory, Department of Biotechnology, University of Verona, Verona, Italy
| | | | - Claudio Franceschi
- Department of Applied Mathematics, Institute of Information Technology, Lobachevsky University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - Paolo Garagnani
- Interdepartmental Centre Alma Mater Research Institute on Global Challenges and Climate Change, University of Bologna, Bologna, Italy.
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, Bologna, Italy.
- Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, Stockholm, Sweden.
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24
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Marcus JH, Posth C, Ringbauer H, Lai L, Skeates R, Sidore C, Beckett J, Furtwängler A, Olivieri A, Chiang CWK, Al-Asadi H, Dey K, Joseph TA, Liu CC, Der Sarkissian C, Radzevičiūtė R, Michel M, Gradoli MG, Marongiu P, Rubino S, Mazzarello V, Rovina D, La Fragola A, Serra RM, Bandiera P, Bianucci R, Pompianu E, Murgia C, Guirguis M, Orquin RP, Tuross N, van Dommelen P, Haak W, Reich D, Schlessinger D, Cucca F, Krause J, Novembre J. Genetic history from the Middle Neolithic to present on the Mediterranean island of Sardinia. Nat Commun 2020; 11:939. [PMID: 32094358 PMCID: PMC7039977 DOI: 10.1038/s41467-020-14523-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 01/08/2020] [Indexed: 11/30/2022] Open
Abstract
The island of Sardinia has been of particular interest to geneticists for decades. The current model for Sardinia's genetic history describes the island as harboring a founder population that was established largely from the Neolithic peoples of southern Europe and remained isolated from later Bronze Age expansions on the mainland. To evaluate this model, we generate genome-wide ancient DNA data for 70 individuals from 21 Sardinian archaeological sites spanning the Middle Neolithic through the Medieval period. The earliest individuals show a strong affinity to western Mediterranean Neolithic populations, followed by an extended period of genetic continuity on the island through the Nuragic period (second millennium BCE). Beginning with individuals from Phoenician/Punic sites (first millennium BCE), we observe spatially-varying signals of admixture with sources principally from the eastern and northern Mediterranean. Overall, our analysis sheds light on the genetic history of Sardinia, revealing how relationships to mainland populations shifted over time.
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MESH Headings
- Archaeology/methods
- Body Remains
- Chromosomes, Human, X/genetics
- Chromosomes, Human, Y/genetics
- DNA, Ancient
- DNA, Mitochondrial/genetics
- Datasets as Topic
- Female
- Genetics, Population/history
- History, 15th Century
- History, 16th Century
- History, 17th Century
- History, 18th Century
- History, 19th Century
- History, 20th Century
- History, 21st Century
- History, Ancient
- History, Medieval
- Human Migration
- Humans
- Italy
- Male
- Models, Genetic
- Sequence Analysis, DNA
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Affiliation(s)
- Joseph H Marcus
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Cosimo Posth
- Max Planck Institute for the Science of Human History, Jena, Germany
- Institute for Archaeological Sciences, University of Tübingen, Tübingen, Germany
| | - Harald Ringbauer
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Luca Lai
- Department of Anthropology, University of South Florida, Tampa, FL, USA
- Department of Anthropology, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Robin Skeates
- Department of Archaeology, Durham University, Durham, UK
| | - Carlo Sidore
- Istituto di Ricerca Genetica e Biomedica - CNR, Cagliari, Italy
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | | | - Anja Furtwängler
- Institute for Archaeological Sciences, University of Tübingen, Tübingen, Germany
| | - Anna Olivieri
- Dipartimento di Biologia e Biotecnologie "L. Spallanzani", Università di Pavia, Pavia, Italy
| | - Charleston W K Chiang
- Center for Genetic Epidemiology, Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Quantitative and Computational Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA
| | - Hussein Al-Asadi
- Department of Statistics, University of Chicago, Chicago, IL, USA
- Committee on Evolutionary Biology, University of Chicago, Chicago, IL, USA
| | - Kushal Dey
- Department of Statistics, University of Chicago, Chicago, IL, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, 02115, USA
| | - Tyler A Joseph
- Department of Computer Science, Columbia University, New York, NY, USA
| | - Chi-Chun Liu
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Clio Der Sarkissian
- Laboratoire d'Anthropologie Moléculaire et d'Imagerie de Synthèse, CNRS UMR 5288, Université de Toulouse 3, Toulouse, France
| | - Rita Radzevičiūtė
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - Megan Michel
- Max Planck Institute for the Science of Human History, Jena, Germany
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA
| | | | - Patrizia Marongiu
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | - Salvatore Rubino
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | | | - Daniela Rovina
- Soprintendenza Archeologia, belle arti e paesaggio delle province di Sassari e Nuoro, Sassari, Italy
| | - Alessandra La Fragola
- Departamento de Geografía, Historia y Humanidades Escuela Internacional de Doctorado de la Universidad de Almería, Almería, Spain
| | - Rita Maria Serra
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
- Center for Anthropological, Paleopathological and Historical Studies of the Sardinian and Mediterranean Populations, University of Sassari, Sassari, Italy
| | - Pasquale Bandiera
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
- Center for Anthropological, Paleopathological and Historical Studies of the Sardinian and Mediterranean Populations, University of Sassari, Sassari, Italy
| | - Raffaella Bianucci
- Department of Sciences and Technological Innovation, University of Eastern Piedmont, 15121, Alessandria, Italy
- Legal Medicine Section, Department of Public Health and Paediatric Sciences, University of Turin, 10126, Turin, Italy
| | - Elisa Pompianu
- Department of History, Human Sciences and Education, University of Sassari, 07100, Sassari, Italy
| | - Clizia Murgia
- Universitat Autònoma de Barcelona, Departament de Biologia Animal, Biologia Vegetal i Ecologia, 08193, Barcelona, Spain
| | - Michele Guirguis
- Department of History, Human Sciences and Education, University of Sassari, 07100, Sassari, Italy
| | - Rosana Pla Orquin
- Department of History, Human Sciences and Education, University of Sassari, 07100, Sassari, Italy
| | - Noreen Tuross
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA
| | - Peter van Dommelen
- Joukowsky Institute for Archaeology and the Ancient World, Brown University, Providence, RI, 02912, USA
| | - Wolfgang Haak
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Munich, Germany
| | | | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica - CNR, Cagliari, Italy.
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy.
| | - Johannes Krause
- Max Planck Institute for the Science of Human History, Jena, Germany.
- Institute for Archaeological Sciences, University of Tübingen, Tübingen, Germany.
- Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Munich, Germany.
| | - John Novembre
- Department of Human Genetics, University of Chicago, Chicago, IL, USA.
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, USA.
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25
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The spread of steppe and Iranian-related ancestry in the islands of the western Mediterranean. Nat Ecol Evol 2020; 4:334-345. [PMID: 32094539 PMCID: PMC7080320 DOI: 10.1038/s41559-020-1102-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 01/08/2020] [Indexed: 11/08/2022]
Abstract
Steppe-pastoralist-related ancestry reached Central Europe by at least 2500 BC, whereas Iranian farmer-related ancestry was present in Aegean Europe by at least 1900 BC. However, the spread of these ancestries into the western Mediterranean, where they have contributed to many populations that live today, remains poorly understood. Here, we generated genome-wide ancient-DNA data from the Balearic Islands, Sicily and Sardinia, increasing the number of individuals with reported data from 5 to 66. The oldest individual from the Balearic Islands (~2400 BC) carried ancestry from steppe pastoralists that probably derived from west-to-east migration from Iberia, although two later Balearic individuals had less ancestry from steppe pastoralists. In Sicily, steppe pastoralist ancestry arrived by ~2200 BC, in part from Iberia; Iranian-related ancestry arrived by the mid-second millennium BC, contemporary to its previously documented spread to the Aegean; and there was large-scale population replacement after the Bronze Age. In Sardinia, nearly all ancestry derived from the island's early farmers until the first millennium BC, with the exception of an outlier from the third millennium BC, who had primarily North African ancestry and who-along with an approximately contemporary Iberian-documents widespread Africa-to-Europe gene flow in the Chalcolithic. Major immigration into Sardinia began in the first millennium BC and, at present, no more than 56-62% of Sardinian ancestry is from its first farmers. This value is lower than previous estimates, highlighting that Sardinia, similar to every other region in Europe, has been a stage for major movement and mixtures of people.
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26
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Rathmann H, Kyle B, Nikita E, Harvati K, Saltini Semerari G. Population history of southern Italy during Greek colonization inferred from dental remains. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 170:519-534. [DOI: 10.1002/ajpa.23937] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/03/2019] [Accepted: 09/05/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Hannes Rathmann
- DFG Center for Advanced Studies “Words, Bones, Genes, Tools”Eberhard Karls University of Tübingen Tübingen Germany
| | - Britney Kyle
- Department of AnthropologyUniversity of Northern Colorado Greeley Colorado
| | - Efthymia Nikita
- Science and Technology in Archaeology and Culture Research CenterThe Cyprus Institute Nicosia Cyprus
| | - Katerina Harvati
- DFG Center for Advanced Studies “Words, Bones, Genes, Tools”Eberhard Karls University of Tübingen Tübingen Germany
- Paleoanthropology, Senckenberg Centre for Human Evolution and PalaeoenvironmentEberhard Karls University of Tübingen Tübingen Germany
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27
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Inter-individual genomic heterogeneity within European population isolates. PLoS One 2019; 14:e0214564. [PMID: 31596857 PMCID: PMC6785074 DOI: 10.1371/journal.pone.0214564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 09/24/2019] [Indexed: 12/12/2022] Open
Abstract
A number of studies carried out since the early ‘70s has investigated the effects of isolation on genetic variation within and among human populations in diverse geographical contexts. However, no extensive analysis has been carried out on the heterogeneity among genomes within isolated populations. This issue is worth exploring since events of recent admixture and/or subdivision could potentially disrupt the genetic homogeneity which is to be expected when isolation is prolonged and constant over time. Here, we analyze literature data relative to 87,815 autosomal single-nucleotide polymorphisms, which were obtained from a total of 28 European populations. Our results challenge the traditional paradigm of population isolates as structured as genetically (and genomically) uniform entities. In fact, focusing on the distribution of variance of intra-population diversity measures across individuals, we show that the inter-individual heterogeneity of isolated populations is at least comparable to the open ones. More in particular, three small and highly inbred isolates (Sappada, Sauris and Timau in Northeastern Italy) were found to be characterized by levels of inter-individual heterogeneity largely exceeding that of all other populations, possibly due to relatively recent events of genetic introgression. Finally, we propose a way to monitor the effects of inter-individual heterogeneity in disease-gene association studies.
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28
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Giuliani C, Sazzini M, Pirazzini C, Bacalini MG, Marasco E, Ruscone GAG, Fang F, Sarno S, Gentilini D, Di Blasio AM, Crocco P, Passarino G, Mari D, Monti D, Nacmias B, Sorbi S, Salvarani C, Catanoso M, Pettener D, Luiselli D, Ukraintseva S, Yashin A, Franceschi C, Garagnani P. Impact of demography and population dynamics on the genetic architecture of human longevity. Aging (Albany NY) 2019; 10:1947-1963. [PMID: 30089705 PMCID: PMC6128422 DOI: 10.18632/aging.101515] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 07/26/2018] [Indexed: 02/07/2023]
Abstract
The study of the genetics of longevity has been mainly addressed by GWASs that considered subjects from different populations to reach higher statistical power. The "price to pay" is that population-specific evolutionary histories and trade-offs were neglected in the investigation of gene-environment interactions. We propose a new “diachronic” approach that considers processes occurred at both evolutionary and lifespan timescales. We focused on a well-characterized population in terms of evolutionary history (i.e. Italians) and we generated genome-wide data for 333 centenarians from the peninsula and 773 geographically-matched healthy individuals. Obtained results showed that: (i) centenarian genomes are enriched for an ancestral component likely shaped by pre-Neolithic migrations; (ii) centenarians born in Northern Italy unexpectedly clustered with controls from Central/Southern Italy suggesting that Neolithic and Bronze Age gene flow did not favor longevity in this population; (iii) local past adaptive events in response to pathogens and targeting arachidonic acid metabolism became favorable for longevity; (iv) lifelong changes in the frequency of several alleles revealed pleiotropy and trade-off mechanisms crucial for longevity. Therefore, we propose that demographic history and ancient/recent population dynamics need to be properly considered to identify genes involved in longevity, which can differ in different temporal/spatial settings.
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Affiliation(s)
- Cristina Giuliani
- Department of Biological, Geological, and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy.,School of Anthropology and Museum Ethnography, University of Oxford, Oxford, UK.,Interdepartmental Center "L. Galvani," (CIG), University of Bologna, Bologna, Italy
| | - Marco Sazzini
- Department of Biological, Geological, and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy
| | - Chiara Pirazzini
- IRCCS, Institute of Neurological Sciences of Bologna, Bologna, Italy
| | | | - Elena Marasco
- Interdepartmental Center "L. Galvani," (CIG), University of Bologna, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.,Applied Biomedical Research Center (CRBA), S. Orsola-Malpighi Polyclinic, Bologna, Italy
| | - Guido Alberto Gnecchi Ruscone
- Department of Biological, Geological, and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy
| | - Fang Fang
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, NC 27708, USA
| | - Stefania Sarno
- Department of Biological, Geological, and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy
| | - Davide Gentilini
- Istituto Auxologico Italiano IRCCS, Cusano Milanino, Milan, Italy
| | | | - Paolina Crocco
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Giuseppe Passarino
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Daniela Mari
- Geriatric Unit, Department of Medical Sciences and Community Health, Milan, Italy.,Fondazione Ca' Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniela Monti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Benedetta Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
| | - Sandro Sorbi
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy.,IRCCS Don Gnocchi, Florence, Italy
| | - Carlo Salvarani
- Azienda Ospedaliera-IRCCS, Reggio Emilia, Italy.,Department of Surgical, Medical, Dental and Morphological Sciences with Interest Transplant, Oncological and Regenerative Medicine, , Italy
| | | | - Davide Pettener
- Department of Biological, Geological, and Environmental Sciences (BiGeA), Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, Bologna, Italy
| | - Donata Luiselli
- Department for the Cultural Heritage (DBC), University of Bologna, Ravenna, Italy
| | - Svetlana Ukraintseva
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, NC 27708, USA
| | - Anatoliy Yashin
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, NC 27708, USA
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, Bologna, Italy.,Co-senior authors
| | - Paolo Garagnani
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.,Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet at Huddinge University Hospital, S-141 86 Stockholm, Sweden.,CNR Institute of Molecular Genetics, Unit of Bologna, Bologna, Italy.,Rizzoli Orthopaedic Institute, Laboratory of Cell Biology, Bologna, Italy.,Co-senior authors
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29
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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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Militello C, Rundo L, Toia P, Conti V, Russo G, Filorizzo C, Maffei E, Cademartiri F, La Grutta L, Midiri M, Vitabile S. A semi-automatic approach for epicardial adipose tissue segmentation and quantification on cardiac CT scans. Comput Biol Med 2019; 114:103424. [PMID: 31521896 DOI: 10.1016/j.compbiomed.2019.103424] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/02/2019] [Accepted: 09/02/2019] [Indexed: 01/23/2023]
Abstract
Many studies have shown that epicardial fat is associated with a higher risk of heart diseases. Accurate epicardial adipose tissue quantification is still an open research issue. Considering that manual approaches are generally user-dependent and time-consuming, computer-assisted tools can considerably improve the result repeatability as well as reduce the time required for performing an accurate segmentation. Unfortunately, fully automatic strategies might not always identify the Region of Interest (ROI) correctly. Moreover, they could require user interaction for handling unexpected events. This paper proposes a semi-automatic method for Epicardial Fat Volume (EFV) segmentation and quantification. Unlike supervised Machine Learning approaches, the method does not require any initial training or modeling phase to set up the system. As a further key novelty, the method also yields a subdivision into quartiles of the adipose tissue density. Quartile-based analysis conveys information about fat densities distribution, enabling an in-depth study towards a possible correlation between fat amounts, fat distribution, and heart diseases. Experimental tests were performed on 50 Calcium Score (CaSc) series and 95 Coronary Computed Tomography Angiography (CorCTA) series. Area-based and distance-based metrics were used to evaluate the segmentation accuracy, by obtaining Dice Similarity Coefficient (DSC) = 93.74% and Mean Absolute Distance (MAD) = 2.18 for CaSc, as well as DSC = 92.48% and MAD = 2.87 for CorCTA. Moreover, the Pearson and Spearman coefficients were computed for quantifying the correlation between the ground-truth EFV and the corresponding automated measurement, by obtaining 0.9591 and 0.9490 for CaSc, and 0.9513 and 0.9319 for CorCTA, respectively. In conclusion, the proposed EFV quantification and analysis method represents a clinically useable tool assisting the cardiologist to gain insights into a specific clinical scenario and leading towards personalized diagnosis and therapy.
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Affiliation(s)
- Carmelo Militello
- Institute of Molecular Bioimaging and Physiology, Italian National Research Council (IBFM-CNR), Cefalù (PA), Italy.
| | - Leonardo Rundo
- University of Cambridge, Department of Radiology, Cambridge, United Kingdom; Cancer Research UK Cambridge Centre, Cambridge, United Kingdom; Institute of Molecular Bioimaging and Physiology, Italian National Research Council (IBFM-CNR), Cefalù (PA), Italy
| | - Patrizia Toia
- Department of Biomedicine, Neuroscience and Advanced Diagnostic (BiND), University of Palermo, Italy
| | - Vincenzo Conti
- Faculty of Engineering and Architecture, University of Enna KORE, Enna, Italy
| | - Giorgio Russo
- Institute of Molecular Bioimaging and Physiology, Italian National Research Council (IBFM-CNR), Cefalù (PA), Italy
| | - Clarissa Filorizzo
- Department of Biomedicine, Neuroscience and Advanced Diagnostic (BiND), University of Palermo, Italy
| | - Erica Maffei
- Department of Radiology, Area Vasta 1/ASUR Marche, Urbino, Italy
| | | | - Ludovico La Grutta
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialities (ProMISE), University of Palermo, Italy
| | - Massimo Midiri
- Department of Biomedicine, Neuroscience and Advanced Diagnostic (BiND), University of Palermo, Italy
| | - Salvatore Vitabile
- Department of Biomedicine, Neuroscience and Advanced Diagnostic (BiND), University of Palermo, Italy
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31
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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
- Corresponding author. (A.R.); (S.A.); (F.M.); (C.C.)
| | - 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
- Corresponding author. (A.R.); (S.A.); (F.M.); (C.C.)
| | - F. Montinaro
- Department of Zoology, University of Oxford, Oxford, UK
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia
- Corresponding author. (A.R.); (S.A.); (F.M.); (C.C.)
| | - 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
- Corresponding author. (A.R.); (S.A.); (F.M.); (C.C.)
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Haber M, Doumet-Serhal C, Scheib CL, Xue Y, Mikulski R, Martiniano R, Fischer-Genz B, Schutkowski H, Kivisild T, Tyler-Smith C. A Transient Pulse of Genetic Admixture from the Crusaders in the Near East Identified from Ancient Genome Sequences. Am J Hum Genet 2019; 104:977-984. [PMID: 31006515 PMCID: PMC6506814 DOI: 10.1016/j.ajhg.2019.03.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/18/2019] [Indexed: 11/12/2022] Open
Abstract
During the medieval period, hundreds of thousands of Europeans migrated to the Near East to take part in the Crusades, and many of them settled in the newly established Christian states along the Eastern Mediterranean coast. Here, we present a genetic snapshot of these events and their aftermath by sequencing the whole genomes of 13 individuals who lived in what is today known as Lebanon between the 3rd and 13th centuries CE. These include nine individuals from the “Crusaders’ pit” in Sidon, a mass burial in South Lebanon identified from the archaeology as the grave of Crusaders killed during a battle in the 13th century CE. We show that all of the Crusaders’ pit individuals were males; some were Western Europeans from diverse origins, some were locals (genetically indistinguishable from present-day Lebanese), and two individuals were a mixture of European and Near Eastern ancestries, providing direct evidence that the Crusaders admixed with the local population. However, these mixtures appear to have had limited genetic consequences since signals of admixture with Europeans are not significant in any Lebanese group today—in particular, Lebanese Christians are today genetically similar to local people who lived during the Roman period which preceded the Crusades by more than four centuries.
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33
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A simultaneous search for footprints of early human migration processes using the genetic and folk music data in Eurasia. Mol Genet Genomics 2019; 294:941-962. [PMID: 30949847 DOI: 10.1007/s00438-019-01539-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 02/18/2019] [Indexed: 10/27/2022]
Abstract
In this study, we aimed to illustrate the efficiency of correlation analysis of musical and genetic data for certain common ethnic and ethno-musical roots of mankind. The comparison of the results to archaeogenetic data shows that correlations of recent musical and genetic data may reveal past cultural and migration processes resulting in recent connections. The significance tests verified our hypothesis supposing that propagation of oral musical traditions can be related to early human migration processes is well-founded, because the multidimensional point system determined by the inverse rank vectors of correlating Hg-UCT pairs has a very clear structure. We found that associations of Hgs jointly propagating with associations of UCTs (Unified Contour Type) can be identified as significant complex components in both modern and ancient populations, thus, modern populations can be considered as admixtures of these ancient Hg associations. It also seems obvious to conclude that these ancient Hg associations strewed their musical "parent languages" during their migrations, and the correlating UCTs of these musical parent languages may also be basic components of the recent folk music cultures. Thus, we can draw a hypothetical picture of the main characteristics of ancient musical cultures. Modern and prehistoric populations belonging to a common Hg-UCT association are located to very similar geographical areas, consequently, recent folk music cultures are basically determined by prehistoric migrations. Our study could be considered as an initial step in analysis of the correlations of prehistoric and recent musical and genetic characteristics of human evolution history.
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34
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Montero BK, Refaly E, Ramanamanjato J, Randriatafika F, Rakotondranary SJ, Wilhelm K, Ganzhorn JU, Sommer S. Challenges of next-generation sequencing in conservation management: Insights from long-term monitoring of corridor effects on the genetic diversity of mouse lemurs in a fragmented landscape. Evol Appl 2019; 12:425-442. [PMID: 30828365 PMCID: PMC6383737 DOI: 10.1111/eva.12723] [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] [Received: 03/02/2018] [Revised: 09/24/2018] [Accepted: 09/30/2018] [Indexed: 01/30/2023] Open
Abstract
Long-term genetic monitoring of populations is essential for efforts aimed at preserving genetic diversity of endangered species. Here, we employ a framework of long-term genetic monitoring to evaluate the effects of fragmentation and the effectiveness of the establishment of corridors in restoring population connectivity and genetic diversity of mouse lemurs Microcebus ganzhorni. To this end, we supplement estimates of neutral genetic diversity with the assessment of adaptive genetic variability of the major histocompatibility complex (MHC). In addition, we address the challenges of long-term genetic monitoring of functional diversity by comparing the genotyping performance and estimates of MHC variability generated by single-stranded conformation polymorphism (SSCP)/Sanger sequencing with those obtained by high-throughput sequencing (next-generation sequencing [NGS], Illumina), an issue that is particularly relevant when previous work serves as a baseline for planning management strategies that aim to ensure the viability of a population. We report that SSCP greatly underestimates individual diversity and that discrepancies in estimates of MHC diversity attributable to the comparisons of traditional and NGS genotyping techniques can influence the conclusions drawn from conservation management scenarios. Evidence of migration among fragments in Mandena suggests that mouse lemurs are robust to the process of fragmentation and that the effect of corridors is masked by ongoing gene flow. Nonetheless, results based on a larger number of shared private alleles at neutral loci between fragment pairs found after the establishment of corridors in Mandena suggest that gene flow is augmented as a result of enhanced connectivity. Our data point out that despite low effective population size, M. ganzhorni maintains high individual heterozygosity at neutral loci and at MHC II DRB gene and that selection plays a predominant role in maintaining MHC diversity. These findings highlight the importance of long-term genetic monitoring in order to disentangle between the processes of drift and selection maintaining adaptive genetic diversity in small populations.
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Affiliation(s)
- B. Karina Montero
- Animal Ecology and ConservationHamburg UniversityHamburgGermany
- Institute of Evolutionary Ecology and Conservation GenomicsUniversity of UlmUlmGermany
| | | | | | | | | | - Kerstin Wilhelm
- Institute of Evolutionary Ecology and Conservation GenomicsUniversity of UlmUlmGermany
| | | | - Simone Sommer
- Institute of Evolutionary Ecology and Conservation GenomicsUniversity of UlmUlmGermany
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Grugni V, Raveane A, Mattioli F, Battaglia V, Sala C, Toniolo D, Ferretti L, Gardella R, Achilli A, Olivieri A, Torroni A, Passarino G, Semino O. Reconstructing the genetic history of Italians: new insights from a male (Y-chromosome) perspective. Ann Hum Biol 2018; 45:44-56. [PMID: 29382284 DOI: 10.1080/03014460.2017.1409801] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Due to its central and strategic position in Europe and in the Mediterranean Basin, the Italian Peninsula played a pivotal role in the first peopling of the European continent and has been a crossroad of peoples and cultures since then. AIM This study aims to gain more information on the genetic structure of modern Italian populations and to shed light on the migration/expansion events that led to their formation. SUBJECTS AND METHODS High resolution Y-chromosome variation analysis in 817 unrelated males from 10 informative areas of Italy was performed. Haplogroup frequencies and microsatellite haplotypes were used, together with available data from the literature, to evaluate Mediterranean and European inputs and date their arrivals. RESULTS Fifty-three distinct Y-chromosome lineages were identified. Their distribution is in general agreement with geography, southern populations being more differentiated than northern ones. CONCLUSIONS A complex genetic structure reflecting the multifaceted peopling pattern of the Peninsula emerged: southern populations show high similarity with those from the Middle East and Southern Balkans, while those from Northern Italy are close to populations of North-Western Europe and the Northern Balkans. Interestingly, the population of Volterra, an ancient town of Etruscan origin in Tuscany, displays a unique Y-chromosomal genetic structure.
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Affiliation(s)
- Viola Grugni
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Alessandro Raveane
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Francesca Mattioli
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Vincenza Battaglia
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Cinzia Sala
- b Divisione di Genetica e Biologia Cellulare , Istituto Scientifico San Raffaele , Milano , Italy
| | - Daniela Toniolo
- b Divisione di Genetica e Biologia Cellulare , Istituto Scientifico San Raffaele , Milano , Italy
| | - Luca Ferretti
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Rita Gardella
- c Dipartimento di Medicina Molecolare e Traslazionale , Università di Brescia , Brescia , Italy
| | - Alessandro Achilli
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Anna Olivieri
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Antonio Torroni
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
| | - Giuseppe Passarino
- d Dipartimento di Biologia, Ecologia e Scienze della Terra , Università della Calabria , Arcavacata di Rende , Cosenza , Italy
| | - Ornella Semino
- a Dipartimento di Biologia e Biotecnologie "L. Spallanzani" , Università di Pavia , Pavia , Italy
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36
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Serventi P, Panicucci C, Bodega R, De Fanti S, Sarno S, Fondevila Alvarez M, Brisighelli F, Trombetta B, Anagnostou P, Ferri G, Vazzana A, Delpino C, Gruppioni G, Luiselli D, Cilli E. Iron Age Italic population genetics: the Piceni from Novilara (8th-7th century BC). Ann Hum Biol 2018; 45:34-43. [PMID: 29216758 DOI: 10.1080/03014460.2017.1414876] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Archaeological data provide evidence that Italy, during the Iron Age, witnessed the appearance of the first communities with well defined cultural identities. To date, only a few studies report genetic data about these populations and, in particular, the Piceni have never been analysed. AIMS To provide new data about mitochondrial DNA (mtDNA) variability of an Iron Age Italic population, to understand the contribution of the Piceni in shaping the modern Italian gene pool and to ascertain the kinship between some individuals buried in the same grave within the Novilara necropolis. SUBJECTS AND METHODS In a first set of 10 individuals from Novilara, we performed deep sequencing of the HVS-I region of the mtDNA, combined with the genotyping of 22 SNPs in the coding region and the analysis of several autosomal markers. RESULTS The results show a low nucleotide diversity for the inhabitants of Novilara and highlight a genetic affinity of this ancient population with the current inhabitants of central Italy. No family relationship was observed between the individuals analysed here. CONCLUSIONS This study provides a preliminary characterisation of the mtDNA variability of the Piceni of Novilara, as well as a kinship assessment of two peculiar burials.
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Affiliation(s)
- Patrizia Serventi
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy.,b Department of Cultural Heritage , University of Bologna , Ravenna , Italy
| | - Chiara Panicucci
- b Department of Cultural Heritage , University of Bologna , Ravenna , Italy
| | - Roberta Bodega
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Sara De Fanti
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Stefania Sarno
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Manuel Fondevila Alvarez
- c Instituto de Ciencias Forenses 'Luis Concheiro' , University of Santiago de Compostela, Santiago de Compostela , Galicia , Spain
| | - Francesca Brisighelli
- d Sezione di Medicina Legale-Istituto di Sanità Pubblica , Università Cattolica del Sacro Cuore , Roma , Italy
| | - Beniamino Trombetta
- e Department of Biology and Biotechnology 'Charles Darwin' , Sapienza University , Rome , Italy
| | - Paolo Anagnostou
- f Department of Environmental Biology , University of Rome 'La Sapienza' , Rome , Italy.,g ISItA, Istituto Italiano di Antropologia , Rome , Italy
| | - Gianmarco Ferri
- h Department of Diagnostic and Clinical Medicine and Public Health , University of Modena and Reggio Emilia , Modena , Italy
| | - Antonino Vazzana
- b Department of Cultural Heritage , University of Bologna , Ravenna , Italy
| | - Chiara Delpino
- i Superintendence of Archaeological Heritage of Marche Region , Ancona , Italy
| | - Giorgio Gruppioni
- b Department of Cultural Heritage , University of Bologna , Ravenna , Italy
| | - Donata Luiselli
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Elisabetta Cilli
- b Department of Cultural Heritage , University of Bologna , Ravenna , Italy
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Larmuseau MHD, Ottoni C. Mediterranean Y-chromosome 2.0-why the Y in the Mediterranean is still relevant in the postgenomic era. Ann Hum Biol 2018; 45:20-33. [PMID: 29382278 DOI: 10.1080/03014460.2017.1402956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
CONTEXT Due to its unique paternal inheritance, the Y-chromosome has been a highly popular marker among population geneticists for over two decades. Recently, the advent of cost-effective genome-wide methods has unlocked information-rich autosomal genomic data, paving the way to the postgenomic era. This seems to have announced the decreasing popularity of investigating Y-chromosome variation, which provides only the paternal perspective of human ancestries and is strongly influenced by genetic drift and social behaviour. OBJECTIVE For this special issue on population genetics of the Mediterranean, the aim was to demonstrate that the Y-chromosome still provides important insights in the postgenomic era and in a time when ancient genomes are becoming exponentially available. METHODS A systematic literature search on Y-chromosomal studies in the Mediterranean was performed. RESULTS Several applications of Y-chromosomal analysis with future opportunities are formulated and illustrated with studies on Mediterranean populations. CONCLUSIONS There will be no reduced interest in Y-chromosomal studies going from reconstruction of male-specific demographic events to ancient DNA applications, surname history and population-wide estimations of extra-pair paternity rates. Moreover, more initiatives are required to collect population genetic data of Y-chromosomal markers for forensic research, and to include Y-chromosomal data in GWAS investigations and studies on male infertility.
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Affiliation(s)
- Maarten H D Larmuseau
- a KU Leuven, Forensic Biomedical Sciences , Department of Imaging & Pathology , Leuven , Belgium.,b KU Leuven, Laboratory of Socioecology and Social Evolution , Department of Biology , Leuven , Belgium
| | - Claudio Ottoni
- c Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences , University of Oslo , Oslo , Norway
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Boattini A, Sarno S, Fiorani O, Lisa A, Luiselli D, Pettener D. Ripples on the surface. Surnames and genes in Sicily and Southern Italy. Ann Hum Biol 2018; 45:57-65. [PMID: 29183201 DOI: 10.1080/03014460.2017.1411525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Southern Italy and Sicily played a key role in the peopling history of the Mediterranean. While genetic research showed the remarkable homogeneity of these regions, surname-based studies instead suggested low population mobility, hence potential structuring. AIM In order to better understand these different patterns, this study (1) thoroughly analysed the surname structure of Sicily and Southern Italy and (2) tested its relationships with a wide set of molecular markers. SUBJECTS AND METHODS Surname data were collected from 1213 municipalities and compared to uniparental and autosomal genetic markers typed in ∼300 individuals from 8-10 populations. Surname analyses were performed using different multivariate methods, while comparisons with genetic data relied on correlation tests. RESULTS Surnames were clearly structured according to regional geographic patterns, which likely emerged because of recent isolation-by-distance-like population dynamics. In general, genetic markers, hinting at a pervasive homogeneity, did not correlate with surname distribution. However, long autosomal haplotypes (>5 cM) that compared to genotypic (SNPs) data identify more "recent" relatedness, showing a clear association with surname patterns. CONCLUSION The apparent contradiction between surname structure and genetic homogeneity was resolved by figuring surnames as recent "ripples" deposited on a vast and ancient homogeneous genetic "surface".
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Affiliation(s)
- Alessio Boattini
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Stefania Sarno
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Ornella Fiorani
- b Institute of Molecular Genetics (IGM) , Consiglio Nazionale delle Ricerche (CNR) , Pavia , Italy
| | - Antonella Lisa
- b Institute of Molecular Genetics (IGM) , Consiglio Nazionale delle Ricerche (CNR) , Pavia , Italy
| | - Donata Luiselli
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
| | - Davide Pettener
- a Department of Biological, Geological and Environmental Sciences , University of Bologna , Bologna , Italy
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A finely resolved phylogeny of Y chromosome Hg J illuminates the processes of Phoenician and Greek colonizations in the Mediterranean. Sci Rep 2018; 8:7465. [PMID: 29748665 PMCID: PMC5945646 DOI: 10.1038/s41598-018-25912-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/25/2018] [Indexed: 11/15/2022] Open
Abstract
In order to improve the phylogeography of the male-specific genetic traces of Greek and Phoenician colonizations on the Northern coasts of the Mediterranean, we performed a geographically structured sampling of seven subclades of haplogroup J in Turkey, Greece and Italy. We resequenced 4.4 Mb of Y-chromosome in 58 subjects, obtaining 1079 high quality variants. We did not find a preferential coalescence of Turkish samples to ancestral nodes, contradicting the simplistic idea of a dispersal and radiation of Hg J as a whole from the Middle East. Upon calibration with an ancient Hg J chromosome, we confirmed that signs of Holocenic Hg J radiations are subtle and date mainly to the Bronze Age. We pinpointed seven variants which could potentially unveil star clusters of sequences, indicative of local expansions. By directly genotyping these variants in Hg J carriers and complementing with published resequenced chromosomes (893 subjects), we provide strong temporal and distributional evidence for markers of the Greek settlement of Magna Graecia (J2a-L397) and Phoenician migrations (rs760148062). Our work generated a minimal but robust list of evolutionarily stable markers to elucidate the demographic dynamics and spatial domains of male-mediated movements across and around the Mediterranean, in the last 6,000 years.
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Santamaría J, Álvarez-Álvarez MM, Esteban ME, Ramon-Gurrea E, Moral P. Dinucleotide (CA)n tandem repeats on the human X-chromosome and the history of the Mediterranean populations. Ann Hum Biol 2018; 45:72-76. [PMID: 29382285 DOI: 10.1080/03014460.2017.1414877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Tandem repeats (STRs) are genomic markers of particular interest in forensic and population genetics. Most of the population data currently available correspond to the variation of STRs of forensic panels, which barely include dinucleotide tandem repeats. AIMS The aim of the study is to test the usefulness of a battery of dinucleotide STRs on the X chromosome for population and forensic studies. SUBJECTS AND METHODS A total of 672 individuals from 12 Mediterranean populations and two external references were analysed for 15 X-STR following the instructions of the commercial company and using control DNA from the CEPH centre whose sequences are published in GenBank. Genotypic results were analysed using standard population genetics methods including estimates of linkage disequilibrium, population structure and gene flow. Common forensic efficiency parameters were calculated. RESULTS The analysed X-STRs show high values of genetic diversity, comparable to other STRs of more common use. No significant associations between markers were found. A slight population structure was detected between the two shores of the Mediterranean. The X-STRs studied here present a similar degree of variability to that of other X-STRs used in forensics. CONCLUSION Tandem-repeated dinucleotides are a good tool for evidencing population differences here. Forensic parameters indicate that the dinucleotide X-STRs are suitable for forensic use.
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Affiliation(s)
- Josep Santamaría
- a Departamento de Biologia Evolutiva, Ecología y Ciencias Ambientales , Universitat de Barcelona , Barcelona , Spain
| | - Miguel M Álvarez-Álvarez
- a Departamento de Biologia Evolutiva, Ecología y Ciencias Ambientales , Universitat de Barcelona , Barcelona , Spain
| | - M Esther Esteban
- a Departamento de Biologia Evolutiva, Ecología y Ciencias Ambientales , Universitat de Barcelona , Barcelona , Spain
| | - Elies Ramon-Gurrea
- a Departamento de Biologia Evolutiva, Ecología y Ciencias Ambientales , Universitat de Barcelona , Barcelona , Spain
| | - Pedro Moral
- a Departamento de Biologia Evolutiva, Ecología y Ciencias Ambientales , Universitat de Barcelona , Barcelona , Spain
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The Irish DNA Atlas: Revealing Fine-Scale Population Structure and History within Ireland. Sci Rep 2017; 7:17199. [PMID: 29222464 PMCID: PMC5722868 DOI: 10.1038/s41598-017-17124-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 11/21/2017] [Indexed: 01/31/2023] Open
Abstract
The extent of population structure within Ireland is largely unknown, as is the impact of historical migrations. Here we illustrate fine-scale genetic structure across Ireland that follows geographic boundaries and present evidence of admixture events into Ireland. Utilising the 'Irish DNA Atlas', a cohort (n = 194) of Irish individuals with four generations of ancestry linked to specific regions in Ireland, in combination with 2,039 individuals from the Peoples of the British Isles dataset, we show that the Irish population can be divided in 10 distinct geographically stratified genetic clusters; seven of 'Gaelic' Irish ancestry, and three of shared Irish-British ancestry. In addition we observe a major genetic barrier to the north of Ireland in Ulster. Using a reference of 6,760 European individuals and two ancient Irish genomes, we demonstrate high levels of North-West French-like and West Norwegian-like ancestry within Ireland. We show that that our 'Gaelic' Irish clusters present homogenous levels of ancient Irish ancestries. We additionally detect admixture events that provide evidence of Norse-Viking gene flow into Ireland, and reflect the Ulster Plantations. Our work informs both on Irish history, as well as the study of Mendelian and complex disease genetics involving populations of Irish ancestry.
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