1
|
Askapuli A, Vilar M, Garcia-Ortiz H, Zhabagin M, Sabitov Z, Akilzhanova A, Ramanculov E, Schamiloglu U, Martinez-Hernandez A, Contreras-Cubas C, Barajas-Olmos F, Schurr TG, Zhumadilov Z, Flores-Huacuja M, Orozco L, Hawks J, Saitou N. Kazak mitochondrial genomes provide insights into the human population history of Central Eurasia. PLoS One 2022; 17:e0277771. [PMID: 36445929 PMCID: PMC9707748 DOI: 10.1371/journal.pone.0277771] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 11/03/2022] [Indexed: 11/30/2022] Open
Abstract
As a historical nomadic group in Central Asia, Kazaks have mainly inhabited the steppe zone from the Altay Mountains in the East to the Caspian Sea in the West. Fine scale characterization of the genetic profile and population structure of Kazaks would be invaluable for understanding their population history and modeling prehistoric human expansions across the Eurasian steppes. With this mind, we characterized the maternal lineages of 200 Kazaks from Jetisuu at mitochondrial genome level. Our results reveal that Jetisuu Kazaks have unique mtDNA haplotypes including those belonging to the basal branches of both West Eurasian (R0, H, HV) and East Eurasian (A, B, C, D) lineages. The great diversity observed in their maternal lineages may reflect pivotal geographic location of Kazaks in Eurasia and implies a complex history for this population. Comparative analyses of mitochondrial genomes of human populations in Central Eurasia reveal a common maternal genetic ancestry for Turko-Mongolian speakers and their expansion being responsible for the presence of East Eurasian maternal lineages in Central Eurasia. Our analyses further indicate maternal genetic affinity between the Sherpas from the Tibetan Plateau with the Turko-Mongolian speakers.
Collapse
Affiliation(s)
- Ayken Askapuli
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
- National Center for Biotechnology, Astana, Kazakhstan
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Miguel Vilar
- The Genographic Project, National Geographic Society, Washington, DC, United States of America
- Department of Anthropology, University of Maryland, College Park, Maryland, United States of America
| | - Humberto Garcia-Ortiz
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Maxat Zhabagin
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
- National Center for Biotechnology, Astana, Kazakhstan
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
| | | | - Ainur Akilzhanova
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
| | - Erlan Ramanculov
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
- National Center for Biotechnology, Astana, Kazakhstan
| | - Uli Schamiloglu
- School of Sciences and Humanities, Nazarbayev University, Astana, Kazakhstan
| | - Angelica Martinez-Hernandez
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Cecilia Contreras-Cubas
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Francisco Barajas-Olmos
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Theodore G. Schurr
- Department of Anthropology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Zhaxybay Zhumadilov
- National Laboratory Astana, Nazarbayev University, Astana, Kazakhstan
- School of Medicine, Nazarbayev University, Astana, Kazakhstan
| | - Marlen Flores-Huacuja
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - Lorena Orozco
- Immunogenomics and Metabolic Diseases Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
| | - John Hawks
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Anthropology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Naruya Saitou
- Population Genetics Laboratory, National Institute of Genetics, Mishima, Shizuoka, Japan
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan
- Advanced Medical Research Center, Faculty of Medicine, University of the Ryukyus, Okinawa Ken, Japan
| |
Collapse
|
2
|
Torres JB. A history of you, me, and humanity: mitochondrial DNA in anthropological research. AIMS GENETICS 2021. [DOI: 10.3934/genet.2016.2.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
AbstractWithin genetic anthropology, mitochondrial DNA (mtDNA) has garnered a prominent if not enduring place within the anthropological toolkit. MtDNA has provided new and innovative perspectives on the emergence and dispersal of our species, interactions with extinct human species, and illuminated relationships between human groups. In this paper, I provide a brief overview of the major findings ascertained from mtDNA about human origins, human dispersal across the globe, interactions with other hominin species, and the more recent uses of mtDNA in direct to consumer ancestry tests. Relative to nuclear DNA, mtDNA is a small section of the genome and due to its inheritance pattern provides a limited resolution of population history and an individual's genetic ancestry. Consequently, some scholars dismiss mtDNA as insignificant due to the limited inferences that may be made using the locus. Regardless, mtDNA provides some useful insights to understanding how social, cultural, and environmental factors have shaped patterns of genetic variability. Furthermore, with regard to the experiences of historically marginalized groups, in particular those of African descent throughout the Americas, mtDNA has the potential to fill gaps in knowledge that would otherwise remain unknown. Within anthropological sciences, the value of this locus for understanding human experience is maximized when contextualized with complementary lines of evidence.
Collapse
Affiliation(s)
- Jada Benn Torres
- Laboratory of Genetic Anthropology, Department of Anthropology, Vanderbilt University, Nashville, TN 37325, USA
| |
Collapse
|
3
|
Gopalan S, Atkinson EG, Buck LT, Weaver TD, Henn BM. Inferring archaic introgression from hominin genetic data. Evol Anthropol 2021; 30:199-220. [PMID: 33951239 PMCID: PMC8360192 DOI: 10.1002/evan.21895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 08/03/2020] [Accepted: 03/29/2021] [Indexed: 01/05/2023]
Abstract
Questions surrounding the timing, extent, and evolutionary consequences of archaic admixture into human populations have a long history in evolutionary anthropology. More recently, advances in human genetics, particularly in the field of ancient DNA, have shed new light on the question of whether or not Homo sapiens interbred with other hominin groups. By the late 1990s, published genetic work had largely concluded that archaic groups made no lasting genetic contribution to modern humans; less than a decade later, this conclusion was reversed following the successful DNA sequencing of an ancient Neanderthal. This reversal of consensus is noteworthy, but the reasoning behind it is not widely understood across all academic communities. There remains a communication gap between population geneticists and paleoanthropologists. In this review, we endeavor to bridge this gap by outlining how technological advancements, new statistical methods, and notable controversies ultimately led to the current consensus.
Collapse
Affiliation(s)
- Shyamalika Gopalan
- Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, USA.,Department of Evolutionary Anthropology, Duke University, Durham, North Carolina, USA
| | - Elizabeth G Atkinson
- Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, USA.,Analytic and Translational Genetics Unit, Massachusetts General Hospital and Stanley Center for Psychiatric Research, Broad Institute, Boston, Massachusetts, USA
| | - Laura T Buck
- Research Centre in Evolutionary Anthropology and Palaeoecology, Liverpool John Moores University, Liverpool, UK
| | - Timothy D Weaver
- Department of Anthropology, University of California, Davis, California, USA
| | - Brenna M Henn
- Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, USA.,Department of Anthropology, University of California, Davis, California, USA.,UC Davis Genome Center, University of California, Davis, California, USA
| |
Collapse
|
4
|
Cao YH, Xu SS, Shen M, Chen ZH, Gao L, Lv FH, Xie XL, Wang XH, Yang H, Liu CB, Zhou P, Wan PC, Zhang YS, Yang JQ, Pi WH, Hehua EE, Berry DP, Barbato M, Esmailizadeh A, Nosrati M, Salehian-Dehkordi H, Dehghani-Qanatqestani M, Dotsev AV, Deniskova TE, Zinovieva NA, Brem G, Štěpánek O, Ciani E, Weimann C, Erhardt G, Mwacharo JM, Ahbara A, Han JL, Hanotte O, Miller JM, Sim Z, Coltman D, Kantanen J, Bruford MW, Lenstra JA, Kijas J, Li MH. Historical Introgression from Wild Relatives Enhanced Climatic Adaptation and Resistance to Pneumonia in Sheep. Mol Biol Evol 2021; 38:838-855. [PMID: 32941615 PMCID: PMC7947771 DOI: 10.1093/molbev/msaa236] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
How animals, particularly livestock, adapt to various climates and environments over short evolutionary time is of fundamental biological interest. Further, understanding the genetic mechanisms of adaptation in indigenous livestock populations is important for designing appropriate breeding programs to cope with the impacts of changing climate. Here, we conducted a comprehensive genomic analysis of diversity, interspecies introgression, and climate-mediated selective signatures in a global sample of sheep and their wild relatives. By examining 600K and 50K genome-wide single nucleotide polymorphism data from 3,447 samples representing 111 domestic sheep populations and 403 samples from all their seven wild relatives (argali, Asiatic mouflon, European mouflon, urial, snow sheep, bighorn, and thinhorn sheep), coupled with 88 whole-genome sequences, we detected clear signals of common introgression from wild relatives into sympatric domestic populations, thereby increasing their genomic diversities. The introgressions provided beneficial genetic variants in native populations, which were significantly associated with local climatic adaptation. We observed common introgression signals of alleles in olfactory-related genes (e.g., ADCY3 and TRPV1) and the PADI gene family including in particular PADI2, which is associated with antibacterial innate immunity. Further analyses of whole-genome sequences showed that the introgressed alleles in a specific region of PADI2 (chr2: 248,302,667-248,306,614) correlate with resistance to pneumonia. We conclude that wild introgression enhanced climatic adaptation and resistance to pneumonia in sheep. This has enabled them to adapt to varying climatic and environmental conditions after domestication.
Collapse
Affiliation(s)
- Yin-Hong Cao
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China
| | - Song-Song Xu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China
| | - Min Shen
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Ze-Hui Chen
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China
| | - Lei Gao
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Feng-Hua Lv
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xing-Long Xie
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China
| | - Xin-Hua Wang
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Hua Yang
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Chang-Bin Liu
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Ping Zhou
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Peng-Cheng Wan
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Yun-Sheng Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Jing-Quan Yang
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - Wen-Hui Pi
- Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China
- Xinjiang Academy of Agricultural and Reclamation Sciences, State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Shihezi, China
| | - EEr Hehua
- Institute of Animal Science, Ningxia Academy of Agriculture and Forestry Sciences, Hui Autonomous Region, Yinchuan, Ningxia, China
| | - Donagh P Berry
- Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - Mario Barbato
- Department of Animal Sciences, Food and Nutrition, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Ali Esmailizadeh
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Maryam Nosrati
- Department of Agriculture, Payame Noor University, Tehran, Iran
| | - Hosein Salehian-Dehkordi
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China
| | | | - Arsen V Dotsev
- L.K. Ernst Federal Science Center for Animal Husbandry, Moscow Region, Podolsk, Russian Federation
| | - Tatiana E Deniskova
- L.K. Ernst Federal Science Center for Animal Husbandry, Moscow Region, Podolsk, Russian Federation
| | - Natalia A Zinovieva
- L.K. Ernst Federal Science Center for Animal Husbandry, Moscow Region, Podolsk, Russian Federation
| | - Gottfried Brem
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine, Vienna, Austria
| | - Ondřej Štěpánek
- Department of Virology, State Veterinary Institute Jihlava, Jihlava, Czech Republic
| | - Elena Ciani
- Dipartimento di Bioscienze, Biotecnologie e Biofarmaceutica, Università degli Studi di Bari Aldo 24, Moro, Bari, Italy
| | - Christina Weimann
- Department of Animal Breeding and Genetics, Justus-Liebig-University Giessen, Giessen, Germany
| | - Georg Erhardt
- Department of Animal Breeding and Genetics, Justus-Liebig-University Giessen, Giessen, Germany
| | - Joram M Mwacharo
- Small Ruminant Genomics, International Center for Agricultural Research in the Dry Areas (ICARDA), Addis Ababa, Ethiopia
| | - Abulgasim Ahbara
- School of Life Sciences, University of Nottingham, University Park, Nottingham, United Kingdom
| | - Jian-Lin Han
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
- Livestock Genetics Program, International Livestock Research Institute (ILRI), Nairobi, Kenya
| | - Olivier Hanotte
- School of Life Sciences, University of Nottingham, University Park, Nottingham, United Kingdom
- Livestock Genetics Program, International Livestock Research Institute (ILRI), Addis Abeba, Ethiopia
- Center for Tropical Livestock Genetics and Health (CTLGH), The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, United Kingdom
| | - Joshua M Miller
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Zijian Sim
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
- Fish and Wildlife Enforcement Branch Forensic Unit, Government of Alberta, Edmonton, AB, Canada
| | - David Coltman
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Juha Kantanen
- Production Systems, Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Michael W Bruford
- School of Biosciences, Cardiff University, Cathays Park, Cardiff, United Kingdom
- Sustainable Places Research Institute, Cardiff University, Cardiff, United Kingdom
| | - Johannes A Lenstra
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - James Kijas
- Commonwealth Scientific and Industrial Research Organisation Agriculture and Food, Queensland Bioscience Precinct, St Lucia, Brisbane, QLD, Australia
| | - Meng-Hua Li
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| |
Collapse
|
5
|
Shultz DR, Montrey M, Shultz TR. Comparing fitness and drift explanations of Neanderthal replacement. Proc Biol Sci 2019; 286:20190907. [PMID: 31185865 DOI: 10.1098/rspb.2019.0907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
There is a general consensus among archaeologists that replacement of Neanderthals by anatomically modern humans in Europe occurred around 40-35 ka. However, the causal mechanism for this replacement continues to be debated. Proposed models have featured either fitness advantages in favour of anatomically modern humans or invoked neutral drift under various preconditions. Searching for specific fitness advantages in the archaeological record has proven difficult, as these may be obscured, absent or subject to interpretation. To bridge this gap, we rigorously compare the system-level properties of fitness- and drift-based explanations of Neanderthal replacement. Our stochastic simulations and analytical predictions show that, although both fitness and drift can produce replacement, they present important differences in (i) required initial conditions, (ii) reliability, (iii) time to replacement, and (iv) path to replacement (population histories). These results present useful opportunities for comparison with archaeological and genetic data. We find greater agreement between the available empirical evidence and the system-level properties of replacement by differential fitness, rather than by neutral drift.
Collapse
Affiliation(s)
- Daniel R Shultz
- 1 Department of Anthropology, McGill University , Montreal, Quebec , Canada.,2 Department of History, McGill University , Montreal, Quebec , Canada
| | - Marcel Montrey
- 3 Department of Psychology, McGill University , Montreal, Quebec , Canada
| | - Thomas R Shultz
- 3 Department of Psychology, McGill University , Montreal, Quebec , Canada.,4 School of Computer Science, McGill University , Montreal, Quebec , Canada
| |
Collapse
|
6
|
Charlier P, Gaultier F, Héry-Arnaud G. Interbreeding between Neanderthals and modern humans: Remarks and methodological dangers of a dental calculus microbiome analysis. J Hum Evol 2018; 126:124-126. [PMID: 30029803 DOI: 10.1016/j.jhevol.2018.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 06/18/2018] [Accepted: 06/21/2018] [Indexed: 02/07/2023]
Affiliation(s)
- Philippe Charlier
- UFR of Health Sciences (UVSQ, DANTE Laboratory EA 4498), 2 avenue de la Source de la Bièvre, 78180 Montigny-Le-Bretonneux, France; CASH & IPES, 403 avenue de la République, 92000 Nanterre, France; Museum of Quai Branly - Jacques Chirac, 222 rue de l'Université, 75007 Paris, France.
| | | | - Geneviève Héry-Arnaud
- Department of Microbiology, Centre Hospitalier Régional Universitaire of Brest, Cavale Blanche Hospital, Brest, France; Microbiota Axis, Unité Mixte de Recherche 1078 "Genomics, Genetics, and Biotechnologies", Institut National de la Santé Et de la Recherche Médicale, Faculty of Medicine, Brest, France
| |
Collapse
|
7
|
Povysil G, Hochreiter S. IBD Sharing between Africans, Neandertals, and Denisovans. Genome Biol Evol 2018; 8:3406-3416. [PMID: 28158547 PMCID: PMC5381509 DOI: 10.1093/gbe/evw234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2016] [Indexed: 12/03/2022] Open
Abstract
Interbreeding between ancestors of humans and other hominins outside of Africa has been studied intensively, while their common history within Africa still lacks proper attention. However, shedding light on human evolution in this time period about which little is known, is essential for understanding subsequent events outside of Africa. We investigate the genetic relationships of humans, Neandertals, and Denisovans by identifying very short DNA segments in the 1000 Genomes Phase 3 data that these hominins share identical by descent (IBD). By focusing on low frequency and rare variants, we identify very short IBD segments with high confidence. These segments reveal events from a very distant past because shorter IBD segments are presumably older than longer ones. We extracted two types of very old IBD segments that are not only shared among humans, but also with Neandertals and/or Denisovans. The first type contains longer segments that are found primarily in Asians and Europeans where more segments are found in South Asians than in East Asians for both Neandertal and Denisovan. These longer segments indicate complex admixture events outside of Africa. The second type consists of shorter segments that are shared mainly by Africans and therefore may indicate events involving ancestors of humans and other ancient hominins within Africa. Our results from the autosomes are further supported by an analysis of chromosome X, on which segments that are shared by Africans and match the Neandertal and/or Denisovan genome were even more prominent. Our results indicate that interbreeding with other hominins was a common feature of human evolution starting already long before ancestors of modern humans left Africa.
Collapse
Affiliation(s)
- Gundula Povysil
- Institute of Bioinformatics, Johannes Kepler University Linz, Austria
| | - Sepp Hochreiter
- Institute of Bioinformatics, Johannes Kepler University Linz, Austria
| |
Collapse
|
8
|
Scott EM, Halees A, Itan Y, Spencer EG, He Y, Azab MA, Gabriel SB, Belkadi A, Boisson B, Abel L, Clark AG, Alkuraya FS, Casanova JL, Gleeson JG. Characterization of Greater Middle Eastern genetic variation for enhanced disease gene discovery. Nat Genet 2016; 48:1071-6. [PMID: 27428751 PMCID: PMC5019950 DOI: 10.1038/ng.3592] [Citation(s) in RCA: 267] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/20/2016] [Indexed: 12/19/2022]
Abstract
The Greater Middle East (GME) has been a central hub of human migration and population admixture. The tradition of consanguinity, variably practiced in the Persian Gulf region, North Africa, and Central Asia, has resulted in an elevated burden of recessive disease. Here we generated a whole-exome GME variome from 1,111 unrelated subjects. We detected substantial diversity and admixture in continental and subregional populations, corresponding to several ancient founder populations with little evidence of bottlenecks. Measured consanguinity rates were an order of magnitude above those in other sampled populations, and the GME population exhibited an increased burden of runs of homozygosity (ROHs) but showed no evidence for reduced burden of deleterious variation due to classically theorized 'genetic purging'. Applying this database to unsolved recessive conditions in the GME population reduced the number of potential disease-causing variants by four- to sevenfold. These results show variegated genetic architecture in GME populations and support future human genetic discoveries in Mendelian and population genetics.
Collapse
Affiliation(s)
- Eric M Scott
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,Rady Children's Institute for Genomic Medicine, Department of Neurosciences, University of California, San Diego, La Jolla, California, USA.,Laboratory for Pediatric Brain Disease, Rockefeller University, New York, New York, USA
| | - Anason Halees
- Department of Biostatistics, Epidemiology and Scientific Computing, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Yuval Itan
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, New York, USA
| | - Emily G Spencer
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,Rady Children's Institute for Genomic Medicine, Department of Neurosciences, University of California, San Diego, La Jolla, California, USA.,Laboratory for Pediatric Brain Disease, Rockefeller University, New York, New York, USA
| | - Yupeng He
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,Rady Children's Institute for Genomic Medicine, Department of Neurosciences, University of California, San Diego, La Jolla, California, USA.,Laboratory for Pediatric Brain Disease, Rockefeller University, New York, New York, USA
| | - Mostafa Abdellateef Azab
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,Rady Children's Institute for Genomic Medicine, Department of Neurosciences, University of California, San Diego, La Jolla, California, USA.,Laboratory for Pediatric Brain Disease, Rockefeller University, New York, New York, USA
| | - Stacey B Gabriel
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Aziz Belkadi
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, INSERM, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France
| | - Bertrand Boisson
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, New York, USA.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, INSERM, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France
| | - Laurent Abel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, New York, USA.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, INSERM, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France
| | - Andrew G Clark
- Department of Molecular Biology and Genetics, Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York, USA
| | | | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Jean-Laurent Casanova
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, New York, USA.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, INSERM, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France.,Pediatric Hematology-Immunology Unit, Necker Hospital for Sick Children, Paris, France
| | - Joseph G Gleeson
- Howard Hughes Medical Institute, Rockefeller University, New York, New York, USA.,Rady Children's Institute for Genomic Medicine, Department of Neurosciences, University of California, San Diego, La Jolla, California, USA.,Laboratory for Pediatric Brain Disease, Rockefeller University, New York, New York, USA
| |
Collapse
|
9
|
López S, van Dorp L, Hellenthal G. Human Dispersal Out of Africa: A Lasting Debate. Evol Bioinform Online 2016; 11:57-68. [PMID: 27127403 PMCID: PMC4844272 DOI: 10.4137/ebo.s33489] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/21/2016] [Accepted: 02/21/2016] [Indexed: 01/01/2023] Open
Abstract
Unraveling the first migrations of anatomically modern humans out of Africa has invoked great interest among researchers from a wide range of disciplines. Available fossil, archeological, and climatic data offer many hypotheses, and as such genetics, with the advent of genome-wide genotyping and sequencing techniques and an increase in the availability of ancient samples, offers another important tool for testing theories relating to our own history. In this review, we report the ongoing debates regarding how and when our ancestors left Africa, how many waves of dispersal there were and what geographical routes were taken. We explore the validity of each, using current genetic literature coupled with some of the key archeological findings.
Collapse
Affiliation(s)
- Saioa López
- Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Lucy van Dorp
- Department of Genetics, Evolution and Environment, University College London, London, UK
- Centre for Mathematics and Physics in the Life Sciences and Experimental Biology (CoMPLEX), University College London, London, UK
| | - Garrett Hellenthal
- Department of Genetics, Evolution and Environment, University College London, London, UK
| |
Collapse
|
10
|
Di D, Sanchez-Mazas A, Currat M. Computer simulation of human leukocyte antigen genes supports two main routes of colonization by human populations in East Asia. BMC Evol Biol 2015; 15:240. [PMID: 26530905 PMCID: PMC4632674 DOI: 10.1186/s12862-015-0512-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 10/19/2015] [Indexed: 11/10/2022] Open
Abstract
Background Recent genetic studies have suggested that the colonization of East Asia by modern humans was more complex than a single origin from the South, and that a genetic contribution via a Northern route was probably quite substantial. Results Here we use a spatially-explicit computer simulation approach to investigate the human migration hypotheses of this region based on one-route or two-route models. We test the likelihood of each scenario by using Human Leukocyte Antigen (HLA) − A, −B, and − DRB1 genetic data of East Asian populations, with both selective and demographic parameters considered. The posterior distribution of each parameter is estimated by an Approximate Bayesian Computation (ABC) approach. Conclusions Our results strongly support a model with two main routes of colonization of East Asia on both sides of the Himalayas, with distinct demographic histories in Northern and Southern populations, characterized by more isolation in the South. In East Asia, gene flow between populations originating from the two routes probably existed until a remote prehistoric period, explaining the continuous pattern of genetic variation currently observed along the latitude. A significant although dissimilar level of balancing selection acting on the three HLA loci is detected, but its effect on the local genetic patterns appears to be minor compared to those of past demographic events. Electronic supplementary material The online version of this article (doi:10.1186/s12862-015-0512-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Da Di
- Department of Genetics and Evolution - Anthropology Unit, Laboratory of Anthropology, Genetics and Peopling history (AGP lab), University of Geneva, 12 rue Gustave-Revilliod, Geneva, CH-1211, Geneva 4, Switzerland.
| | - Alicia Sanchez-Mazas
- Department of Genetics and Evolution - Anthropology Unit, Laboratory of Anthropology, Genetics and Peopling history (AGP lab), University of Geneva, 12 rue Gustave-Revilliod, Geneva, CH-1211, Geneva 4, Switzerland. .,Institute of Genetics and Genomics in Geneva (IGE3), University of Geneva Medical Centre (CMU), 1 rue Michel-Servet, Geneva, CH-1211, Geneva 4, Switzerland.
| | - Mathias Currat
- Department of Genetics and Evolution - Anthropology Unit, Laboratory of Anthropology, Genetics and Peopling history (AGP lab), University of Geneva, 12 rue Gustave-Revilliod, Geneva, CH-1211, Geneva 4, Switzerland.
| |
Collapse
|
11
|
Reyes-Centeno H, Hubbe M, Hanihara T, Stringer C, Harvati K. Testing modern human out-of-Africa dispersal models and implications for modern human origins. J Hum Evol 2015; 87:95-106. [DOI: 10.1016/j.jhevol.2015.06.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/02/2015] [Accepted: 06/14/2015] [Indexed: 11/26/2022]
|
12
|
Sánchez-Quinto F, Lalueza-Fox C. Almost 20 years of Neanderthal palaeogenetics: adaptation, admixture, diversity, demography and extinction. Philos Trans R Soc Lond B Biol Sci 2015; 370:20130374. [PMID: 25487326 DOI: 10.1098/rstb.2013.0374] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nearly two decades since the first retrieval of Neanderthal DNA, recent advances in next-generation sequencing technologies have allowed the generation of high-coverage genomes from two archaic hominins, a Neanderthal and a Denisovan, as well as a complete mitochondrial genome from remains which probably represent early members of the Neanderthal lineage. This genomic information, coupled with diversity exome data from several Neanderthal specimens is shedding new light on evolutionary processes such as the genetic basis of Neanderthal and modern human-specific adaptations-including morphological and behavioural traits-as well as the extent and nature of the admixture events between them. An emerging picture is that Neanderthals had a long-term small population size, lived in small and isolated groups and probably practised inbreeding at times. Deleterious genetic effects associated with these demographic factors could have played a role in their extinction. The analysis of DNA from further remains making use of new large-scale hybridization-capture-based methods as well as of new approaches to discriminate contaminant DNA sequences will provide genetic information in spatial and temporal scales that could help clarify the Neanderthal's-and our very own-evolutionary history.
Collapse
Affiliation(s)
- Federico Sánchez-Quinto
- Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Carles Lalueza-Fox
- Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Dr. Aiguader 88, 08003 Barcelona, Spain
| |
Collapse
|
13
|
Hooper DM, Price TD. Rates of karyotypic evolution in Estrildid finches differ between island and continental clades. Evolution 2015; 69:890-903. [DOI: 10.1111/evo.12633] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 02/21/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Daniel M. Hooper
- Commitee on Evolutionary Biology; University of Chicago; Chicago Illinois 60637
| | - Trevor D. Price
- Department of Ecology and Evolution; University of Chicago; Chicago Illinois 60637
| |
Collapse
|
14
|
Genomic and cranial phenotype data support multiple modern human dispersals from Africa and a southern route into Asia. Proc Natl Acad Sci U S A 2014; 111:7248-53. [PMID: 24753576 DOI: 10.1073/pnas.1323666111] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Despite broad consensus on Africa as the main place of origin for anatomically modern humans, their dispersal pattern out of the continent continues to be intensely debated. In extant human populations, the observation of decreasing genetic and phenotypic diversity at increasing distances from sub-Saharan Africa has been interpreted as evidence for a single dispersal, accompanied by a series of founder effects. In such a scenario, modern human genetic and phenotypic variation was primarily generated through successive population bottlenecks and drift during a rapid worldwide expansion out of Africa in the Late Pleistocene. However, recent genetic studies, as well as accumulating archaeological and paleoanthropological evidence, challenge this parsimonious model. They suggest instead a "southern route" dispersal into Asia as early as the late Middle Pleistocene, followed by a separate dispersal into northern Eurasia. Here we test these competing out-of-Africa scenarios by modeling hypothetical geographical migration routes and assessing their correlation with neutral population differentiation, as measured by genetic polymorphisms and cranial shape variables of modern human populations from Africa and Asia. We show that both lines of evidence support a multiple-dispersals model in which Australo-Melanesian populations are relatively isolated descendants of an early dispersal, whereas other Asian populations are descended from, or highly admixed with, members of a subsequent migration event.
Collapse
|
15
|
Eriksson A, Manica A. The doubly conditioned frequency spectrum does not distinguish between ancient population structure and hybridization. Mol Biol Evol 2014; 31:1618-21. [PMID: 24627034 PMCID: PMC4032131 DOI: 10.1093/molbev/msu103] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Distinguishing between hybridization and population structure in the ancestral species is a key challenge in our understanding of how permeable species boundaries are to gene flow. The doubly conditioned frequency spectrum (dcfs) has been argued to be a powerful metric to discriminate between these two explanations, and it was used to argue for hybridization between Neandertal and anatomically modern humans. The shape of the observed dcfs for these two species cannot be reproduced by a model that represents ancient population structure in Africa with two populations, while adding hybridization produces realistic shapes. In this letter, we show that this result is a consequence of the spatial coarseness of the demographic model and that a spatially structured stepping stone model can generate realistic dcfs without hybridization. This result highlights how inferences on hybridization between recently diverged species can be strongly affected by the choice of how population structure is represented in the underlying demographic model. We also conclude that the dcfs has limited power in distinguishing between the signals left by hybridization and ancient structure.
Collapse
Affiliation(s)
- Anders Eriksson
- Evolutionary Ecology Group, Department of Zoology, University of Cambridge, Cambridge, United KingdomIntegrative Systems Biology Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Andrea Manica
- Evolutionary Ecology Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| |
Collapse
|
16
|
Shapiro B, Hofreiter M. A paleogenomic perspective on evolution and gene function: new insights from ancient DNA. Science 2014; 343:1236573. [PMID: 24458647 DOI: 10.1126/science.1236573] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The publication of partial and complete paleogenomes within the last few years has reinvigorated research in ancient DNA. No longer limited to short fragments of mitochondrial DNA, inference of evolutionary processes through time can now be investigated from genome-wide data sampled as far back as 700,000 years. Tremendous insights have been made, in particular regarding the hominin lineage. With rare exception, however, a paleogenomic perspective has been mired by the quality and quantity of recoverable DNA. Though conceptually simple, extracting ancient DNA remains challenging, and sequencing ancient genomes to high coverage remains prohibitively expensive for most laboratories. Still, with improvements in DNA isolation and declining sequencing costs, the taxonomic and geographic purview of paleogenomics is expanding at a rapid pace. With improved capacity to screen large numbers of samples for those with high proportions of endogenous ancient DNA, paleogenomics is poised to become a key technology to better understand recent evolutionary events.
Collapse
Affiliation(s)
- B Shapiro
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA
| | | |
Collapse
|