101
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Pakendorf B, Stoneking M. The genomic prehistory of peoples speaking Khoisan languages. Hum Mol Genet 2020; 30:R49-R55. [PMID: 33075813 PMCID: PMC8117426 DOI: 10.1093/hmg/ddaa221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/28/2020] [Accepted: 10/08/2020] [Indexed: 11/14/2022] Open
Abstract
Peoples speaking so-called Khoisan languages-that is, indigenous languages of southern Africa that do not belong to the Bantu family-are culturally and linguistically diverse. They comprise herders, hunter-gatherers as well as groups of mixed modes of subsistence, and their languages are classified into three distinct language families. This cultural and linguistic variation is mirrored by extensive genetic diversity. We here review the recent genomics literature and discuss the genetic evidence for a formerly wider geographic spread of peoples with Khoisan-related ancestry, for the deep divergence among populations speaking Khoisan languages overlaid by more recent gene flow among these groups and for the impact of admixture with immigrant food-producers in their prehistory.
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Affiliation(s)
- Brigitte Pakendorf
- Dynamique du Langage, UMR5596, CNRS & Université de Lyon, 14 avenue Berthelot, 69007 Lyon, France
| | - Mark Stoneking
- Department of Evolutionary Genetics, MPI for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
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102
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Semo A, Gayà-Vidal M, Fortes-Lima C, Alard B, Oliveira S, Almeida J, Prista A, Damasceno A, Fehn AM, Schlebusch C, Rocha J. Along the Indian Ocean Coast: Genomic Variation in Mozambique Provides New Insights into the Bantu Expansion. Mol Biol Evol 2020; 37:406-416. [PMID: 31593238 PMCID: PMC6993857 DOI: 10.1093/molbev/msz224] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The Bantu expansion, which started in West Central Africa around 5,000 BP, constitutes a major migratory movement involving the joint spread of peoples and languages across sub-Saharan Africa. Despite the rich linguistic and archaeological evidence available, the genetic relationships between different Bantu-speaking populations and the migratory routes they followed during various phases of the expansion remain poorly understood. Here, we analyze the genetic profiles of southwestern and southeastern Bantu-speaking peoples located at the edges of the Bantu expansion by generating genome-wide data for 200 individuals from 12 Mozambican and 3 Angolan populations using ∼1.9 million autosomal single nucleotide polymorphisms. Incorporating a wide range of available genetic data, our analyses confirm previous results favoring a “late split” between West and East Bantu speakers, following a joint passage through the rainforest. In addition, we find that Bantu speakers from eastern Africa display genetic substructure, with Mozambican populations forming a gradient of relatedness along a North–South cline stretching from the coastal border between Kenya and Tanzania to South Africa. This gradient is further associated with a southward increase in genetic homogeneity, and involved minimum admixture with resident populations. Together, our results provide the first genetic evidence in support of a rapid North–South dispersal of Bantu peoples along the Indian Ocean Coast, as inferred from the distribution and antiquity of Early Iron Age assemblages associated with the Kwale archaeological tradition.
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Affiliation(s)
- Armando Semo
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Magdalena Gayà-Vidal
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Cesar Fortes-Lima
- Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
| | - Bérénice Alard
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Sandra Oliveira
- Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - João Almeida
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - António Prista
- Faculdade de Educação Física e Desporto, Universidade Pedagógica de Moçambique, Maputo, Mozambique
| | | | - Anne-Maria Fehn
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal.,Department of Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Carina Schlebusch
- Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden.,Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa.,SciLifeLab, Uppsala, Sweden
| | - Jorge Rocha
- CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal.,Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Portugal
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103
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Lodewijk GA, Fernandes DP, Vretzakis I, Savage JE, Jacobs FMJ. Evolution of Human Brain Size-Associated NOTCH2NL Genes Proceeds toward Reduced Protein Levels. Mol Biol Evol 2020; 37:2531-2548. [PMID: 32330268 PMCID: PMC7475042 DOI: 10.1093/molbev/msaa104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Ever since the availability of genomes from Neanderthals, Denisovans, and ancient humans, the field of evolutionary genomics has been searching for protein-coding variants that may hold clues to how our species evolved over the last ∼600,000 years. In this study, we identify such variants in the human-specific NOTCH2NL gene family, which were recently identified as possible contributors to the evolutionary expansion of the human brain. We find evidence for the existence of unique protein-coding NOTCH2NL variants in Neanderthals and Denisovans which could affect their ability to activate Notch signaling. Furthermore, in the Neanderthal and Denisovan genomes, we find unusual NOTCH2NL configurations, not found in any of the modern human genomes analyzed. Finally, genetic analysis of archaic and modern humans reveals ongoing adaptive evolution of modern human NOTCH2NL genes, identifying three structural variants acting complementary to drive our genome to produce a lower dosage of NOTCH2NL protein. Because copy-number variations of the 1q21.1 locus, encompassing NOTCH2NL genes, are associated with severe neurological disorders, this seemingly contradicting drive toward low levels of NOTCH2NL protein indicates that the optimal dosage of NOTCH2NL may have not yet been settled in the human population.
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Affiliation(s)
- Gerrald A Lodewijk
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Diana P Fernandes
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Iraklis Vretzakis
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Jeanne E Savage
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Complex Trait Genetics
| | - Frank M J Jacobs
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Complex Trait Genetics
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104
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Pearson OM, Hill EC, Peppe DJ, Van Plantinga A, Blegen N, Faith JT, Tryon CA. A Late Pleistocene human humerus from Rusinga Island, Lake Victoria, Kenya. J Hum Evol 2020; 146:102855. [PMID: 32781348 DOI: 10.1016/j.jhevol.2020.102855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 07/08/2020] [Accepted: 07/08/2020] [Indexed: 11/16/2022]
Abstract
In 2010, a hominin right humerus fragment (KNM-RU 58330) was surface collected in a small gully at Nyamita North in the Late Pleistocene Wasiriya Beds of Rusinga Island, Kenya. A combination of stratigraphic and geochronological evidence suggests the specimen is likely between ∼49 and 36 ka in age. The associated fauna is diverse and dominated by semiarid grassland taxa. The small sample of associated Middle Stone Age artifacts includes Levallois flakes, cores, and retouched points. The 139 mm humeral fragment preserves the shaft from distal to the lesser tubercle to 14 mm below the distal end of the weakly projecting deltoid tuberosity. Key morphological features include a narrow and weakly marked pectoralis major insertion and a distinctive medial bend in the diaphysis at the deltoid insertion. This bend is unusual among recent human humeri but occurs in a few Late Pleistocene humeri. The dimensions of the distal end of the fragment predict a length of 317.9 ± 16.4 mm based on recent samples of African ancestry. A novel method of predicting humeral length from the distance between the middle of the pectoralis major and the bottom of the deltoid insertion predicts a length of 317.3 mm ± 17.6 mm. Cross-sectional geometry at the midshaft shows a relatively high percentage of cortical bone and a moderate degree of flattening of the shaft. The Nyamita humerus is anatomically modern in its morphology and adds to the small sample of hominins from the Late Pleistocene associated with Middle Stone Age artifacts known from East Africa. It may sample a population closely related to the people of the out-of-Africa migration.
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Affiliation(s)
- Osbjorn M Pearson
- Department of Anthropology, MSC01-1040, University of New Mexico, Albuquerque, NM, 87131, USA.
| | - Ethan C Hill
- Department of Anthropology, MSC01-1040, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Daniel J Peppe
- Terrestrial Paleoclimatology Research Group, Department of Geosciences, Baylor University, Waco, TX, 76706, USA
| | - Alex Van Plantinga
- Terrestrial Paleoclimatology Research Group, Department of Geosciences, Baylor University, Waco, TX, 76706, USA
| | - Nick Blegen
- Department of Geography, University of Cambridge, Downing Place, Cambridge, CB2 3EN, UK
| | - J Tyler Faith
- Natural History Museum of Utah, Rio Tinto Center, 301 Wakara Way, Salt Lake City, UT, 84108, USA; Department of Anthropology, University of Utah, 260 S. Central Campus Drive, Salt Lake City, UT, 84112, USA
| | - Christian A Tryon
- Department of Anthropology, University of Connecticut, 354 Mansfield Road, Storrs, CT, 06269, USA
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105
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Nakatsuka N, Harney É, Mallick S, Mah M, Patterson N, Reich D. ContamLD: estimation of ancient nuclear DNA contamination using breakdown of linkage disequilibrium. Genome Biol 2020; 21:199. [PMID: 32778142 PMCID: PMC7418405 DOI: 10.1186/s13059-020-02111-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 07/16/2020] [Indexed: 12/31/2022] Open
Abstract
We report a method called ContamLD for estimating autosomal ancient DNA (aDNA) contamination by measuring the breakdown of linkage disequilibrium in a sequenced individual due to the introduction of contaminant DNA. ContamLD leverages the idea that contaminants should have haplotypes uncorrelated to those of the studied individual. Using simulated data, we confirm that ContamLD accurately infers contamination rates with low standard errors: for example, less than 1.5% standard error in cases with less than 10% contamination and 500,000 sequences covering SNPs. This method is optimized for application to aDNA, taking advantage of characteristic aDNA damage patterns to provide calibrated contamination estimates, and is available at https://github.com/nathan-nakatsuka/ContamLD .
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Affiliation(s)
- Nathan Nakatsuka
- Department of Genetics, New Research Building, Harvard Medical School, 77 Ave. Louis Pasteur, Boston, MA, 02115, USA.
- Harvard-MIT Division of Health Sciences and Technology, Harvard Medical School, Boston, MA, 02115, USA.
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA.
| | - Éadaoin Harney
- Department of Genetics, New Research Building, Harvard Medical School, 77 Ave. Louis Pasteur, Boston, MA, 02115, USA.
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA.
- Department of Organismic and Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA.
| | - Swapan Mallick
- Department of Genetics, New Research Building, Harvard Medical School, 77 Ave. Louis Pasteur, Boston, MA, 02115, USA
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA
| | - Matthew Mah
- Department of Genetics, New Research Building, Harvard Medical School, 77 Ave. Louis Pasteur, Boston, MA, 02115, USA
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA
| | - Nick Patterson
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA
| | - David Reich
- Department of Genetics, New Research Building, Harvard Medical School, 77 Ave. Louis Pasteur, Boston, MA, 02115, USA.
- Department of Human Evolutionary Biology, Harvard University, 16 Divinity Ave., Cambridge, MA, 02138, USA.
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, 02141, USA.
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA.
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106
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Affiliation(s)
- Julia Fischer
- Cognitive Ethology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, 37077, Göttingen, Germany; Leibniz ScienceCampus Primate Cognition, Kellnerweg 4, 37077, Göttingen, Germany; Department for Primate Cognition, Georg-August-University, Kellnerweg 4, 37077, Göttingen, Germany
| | - Dietmar Zinner
- Cognitive Ethology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, 37077, Göttingen, Germany; Leibniz ScienceCampus Primate Cognition, Kellnerweg 4, 37077, Göttingen, Germany; Department for Primate Cognition, Georg-August-University, Kellnerweg 4, 37077, Göttingen, Germany.
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107
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Lander F, Russell T. A southern African archaeological database of organic containers and materials, 800 cal BC to cal AD 1500: Possible implications for the transition from foraging to livestock-keeping. PLoS One 2020; 15:e0235226. [PMID: 32639968 PMCID: PMC7343145 DOI: 10.1371/journal.pone.0235226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/10/2020] [Indexed: 11/24/2022] Open
Abstract
Although evidence of organic materials has consistently been reported in the archaeology of southern Africa little attention has been given to how this evidence, so slight in comparison to pottery and lithics, might be used to understand the transition from foraging to livestock-keeping in southern African Archaeology. We have compiled a geo-referenced, radiocarbon database of these organic, material culture remains, with particular reference to containers made of ostrich eggshell, wood, gourd, tortoise shell, twine, and leather over a 2300-year period to capture the periods before and after the appearance of livestock. We have mapped the organic materials for the period 800 cal BC to cal AD 1500 and explored the subsistence base of those who used them. This distribution is compared to that of pottery and livestock remains–conventionally the two archaeological markers of pastoralists. The paper interrogates what this might add to the vexed question of how the practice of livestock-keeping and pottery-making spread into and through the region (the hunter-herder debate). Our analysis suggests that ostrich eggshell containers can be used as a proxy for hunter-gatherers. By comparing areas of bead manufacture with those that have evidence only of bead use, we show the areas to which items may have travelled, along already established hunter-gatherer exchange networks. Our results suggest that hunter-gatherers widely and quickly adopted pottery across southern Africa in a process of cultural diffusion and local innovation, and that this was possibly the main mechanism for the dispersal of livestock at 2100 years ago.
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Affiliation(s)
- Faye Lander
- School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa
| | - Thembi Russell
- School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa
- * E-mail:
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108
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Naidoo T, Xu J, Vicente M, Malmström H, Soodyall H, Jakobsson M, Schlebusch CM. Y-Chromosome Variation in Southern African Khoe-San Populations Based on Whole-Genome Sequences. Genome Biol Evol 2020; 12:1031-1039. [PMID: 32697300 PMCID: PMC7375190 DOI: 10.1093/gbe/evaa098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2020] [Indexed: 12/30/2022] Open
Abstract
Although the human Y chromosome has effectively shown utility in uncovering facets of human evolution and population histories, the ascertainment bias present in early Y-chromosome variant data sets limited the accuracy of diversity and TMRCA estimates obtained from them. The advent of next-generation sequencing, however, has removed this bias and allowed for the discovery of thousands of new variants for use in improving the Y-chromosome phylogeny and computing estimates that are more accurate. Here, we describe the high-coverage sequencing of the whole Y chromosome in a data set of 19 male Khoe-San individuals in comparison with existing whole Y-chromosome sequence data. Due to the increased resolution, we potentially resolve the source of haplogroup B-P70 in the Khoe-San, and reconcile recently published haplogroup A-M51 data with the most recent version of the ISOGG Y-chromosome phylogeny. Our results also improve the positioning of tentatively placed new branches of the ISOGG Y-chromosome phylogeny. The distribution of major Y-chromosome haplogroups in the Khoe-San and other African groups coincide with the emerging picture of African demographic history; with E-M2 linked to the agriculturalist Bantu expansion, E-M35 linked to pastoralist eastern African migrations, B-M112 linked to earlier east-south gene flow, A-M14 linked to shared ancestry with central African rainforest hunter-gatherers, and A-M51 potentially unique to the Khoe-San.
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Affiliation(s)
- Thijessen Naidoo
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
- Department of Archaeology and Classical Studies, Stockholm University, Sweden
- Science for Life Laboratory, Uppsala, Sweden
- Centre for Palaeogenetics, Stockholm, Sweden
| | - Jingzi Xu
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
| | - Mário Vicente
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
| | - Helena Malmström
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
- Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa
| | - Himla Soodyall
- Division of Human Genetics, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- National Health Laboratory Service, Johannesburg, South Africa
- Academy of Science of South Africa
| | - Mattias Jakobsson
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
- Science for Life Laboratory, Uppsala, Sweden
- Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa
| | - Carina M Schlebusch
- Human Evolution, Department of Organismal Biology, Evolutionary Biology Centre, Uppsala University, Sweden
- Science for Life Laboratory, Uppsala, Sweden
- Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa
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109
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Sankararaman S. Methods for detecting introgressed archaic sequences. Curr Opin Genet Dev 2020; 62:85-90. [PMID: 32717667 PMCID: PMC7484293 DOI: 10.1016/j.gde.2020.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/12/2020] [Accepted: 05/22/2020] [Indexed: 11/16/2022]
Abstract
Analysis of genome sequences from archaic and modern humans have revealed multiple episodes of admixture between highly-diverged population groups. Statistical methods that attempt to localize DNA segments introduced by these events offer a powerful tool to investigate recent human evolution. We review recent advances in methods for detecting introgressed sequences.
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Affiliation(s)
- Sriram Sankararaman
- Department of Computer Science, University of California, Los Angeles, CA 90095, United States; Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, United States; Department of Computational Medicine, University of California, Los Angeles, CA 90095, United States.
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110
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Vicente M, Schlebusch CM. African population history: an ancient DNA perspective. Curr Opin Genet Dev 2020; 62:8-15. [DOI: 10.1016/j.gde.2020.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 11/30/2022]
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111
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Wang K, Goldstein S, Bleasdale M, Clist B, Bostoen K, Bakwa-Lufu P, Buck LT, Crowther A, Dème A, McIntosh RJ, Mercader J, Ogola C, Power RC, Sawchuk E, Robertshaw P, Wilmsen EN, Petraglia M, Ndiema E, Manthi FK, Krause J, Roberts P, Boivin N, Schiffels S. Ancient genomes reveal complex patterns of population movement, interaction, and replacement in sub-Saharan Africa. SCIENCE ADVANCES 2020; 6:eaaz0183. [PMID: 32582847 PMCID: PMC7292641 DOI: 10.1126/sciadv.aaz0183] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 04/15/2020] [Indexed: 05/25/2023]
Abstract
Africa hosts the greatest human genetic diversity globally, but legacies of ancient population interactions and dispersals across the continent remain understudied. Here, we report genome-wide data from 20 ancient sub-Saharan African individuals, including the first reported ancient DNA from the DRC, Uganda, and Botswana. These data demonstrate the contraction of diverse, once contiguous hunter-gatherer populations, and suggest the resistance to interaction with incoming pastoralists of delayed-return foragers in aquatic environments. We refine models for the spread of food producers into eastern and southern Africa, demonstrating more complex trajectories of admixture than previously suggested. In Botswana, we show that Bantu ancestry post-dates admixture between pastoralists and foragers, suggesting an earlier spread of pastoralism than farming to southern Africa. Our findings demonstrate how processes of migration and admixture have markedly reshaped the genetic map of sub-Saharan Africa in the past few millennia and highlight the utility of combined archaeological and archaeogenetic approaches.
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Affiliation(s)
- Ke Wang
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Steven Goldstein
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Madeleine Bleasdale
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Bernard Clist
- UGent Centre for Bantu Studies, Department of Languages and Cultures, Ghent University, Ghent, Belgium
- Institut des Mondes Africains, Paris, France
| | - Koen Bostoen
- UGent Centre for Bantu Studies, Department of Languages and Cultures, Ghent University, Ghent, Belgium
| | - Paul Bakwa-Lufu
- Institut des Musées Nationaux du Congo, Kinshasa, Democratic Republic of Congo
| | - Laura T. Buck
- Department of Archaeology, University of Cambridge, Cambridge, UK
- Department of Anthropology, University of California, Davis, Davis, CA, USA
| | - Alison Crowther
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- School of Social Science, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Alioune Dème
- Department of History, Cheikh Anta Diop University, Dakar, Senegal
| | | | - Julio Mercader
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- Department of Archaeology and Anthropology, University of Calgary, Calgary, Alberta, Canada
| | - Christine Ogola
- Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya
| | - Robert C. Power
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- Institute for Pre- and Protohistoric Archaeology and Archaeology of the Roman Provinces, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Elizabeth Sawchuk
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- Department of Anthropology, Stony Brook University, Stony Brook, NY, USA
| | - Peter Robertshaw
- Department of Anthropology, California State University, San Bernardino, San Bernardino, CA, USA
| | - Edwin N. Wilmsen
- University of Texas-Austin, Austin, TX, USA
- Witwatersrand University, Johannesburg, Republic of South Africa
| | - Michael Petraglia
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- School of Social Science, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
- Department of Anthropology, Smithsonian Institution, Washington, DC, USA
| | - Emmanuel Ndiema
- Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya
| | | | - Johannes Krause
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Patrick Roberts
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- School of Social Science, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Nicole Boivin
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- School of Social Science, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
- Department of Archaeology and Anthropology, University of Calgary, Calgary, Alberta, Canada
- Department of Anthropology, Smithsonian Institution, Washington, DC, USA
| | - Stephan Schiffels
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
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112
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Mathieson I. Human adaptation over the past 40,000 years. Curr Opin Genet Dev 2020; 62:97-104. [PMID: 32745952 PMCID: PMC7484260 DOI: 10.1016/j.gde.2020.06.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/10/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
Over the past few years several methodological and data-driven advances have greatly improved our ability to robustly detect genomic signatures of selection in humans. New methods applied to large samples of present-day genomes provide increased power, while ancient DNA allows precise estimation of timing and tempo. However, despite these advances, we are still limited in our ability to translate these signatures into understanding about which traits were actually under selection, and why. Combining information from different populations and timescales may allow interpretation of selective sweeps. Other modes of selection have proved more difficult to detect. In particular, despite strong evidence of the polygenicity of most human traits, evidence for polygenic selection is weak, and its importance in recent human evolution remains unclear. Balancing selection and archaic introgression seem important for the maintenance of potentially adaptive immune diversity, but perhaps less so for other traits.
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Affiliation(s)
- Iain Mathieson
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, United States.
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113
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Gurdasani D, Carstensen T, Fatumo S, Chen G, Franklin CS, Prado-Martinez J, Bouman H, Abascal F, Haber M, Tachmazidou I, Mathieson I, Ekoru K, DeGorter MK, Nsubuga RN, Finan C, Wheeler E, Chen L, Cooper DN, Schiffels S, Chen Y, Ritchie GRS, Pollard MO, Fortune MD, Mentzer AJ, Garrison E, Bergström A, Hatzikotoulas K, Adeyemo A, Doumatey A, Elding H, Wain LV, Ehret G, Auer PL, Kooperberg CL, Reiner AP, Franceschini N, Maher D, Montgomery SB, Kadie C, Widmer C, Xue Y, Seeley J, Asiki G, Kamali A, Young EH, Pomilla C, Soranzo N, Zeggini E, Pirie F, Morris AP, Heckerman D, Tyler-Smith C, Motala AA, Rotimi C, Kaleebu P, Barroso I, Sandhu MS. Uganda Genome Resource Enables Insights into Population History and Genomic Discovery in Africa. Cell 2020; 179:984-1002.e36. [PMID: 31675503 DOI: 10.1016/j.cell.2019.10.004] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 04/03/2019] [Accepted: 10/02/2019] [Indexed: 12/19/2022]
Abstract
Genomic studies in African populations provide unique opportunities to understand disease etiology, human diversity, and population history. In the largest study of its kind, comprising genome-wide data from 6,400 individuals and whole-genome sequences from 1,978 individuals from rural Uganda, we find evidence of geographically correlated fine-scale population substructure. Historically, the ancestry of modern Ugandans was best represented by a mixture of ancient East African pastoralists. We demonstrate the value of the largest sequence panel from Africa to date as an imputation resource. Examining 34 cardiometabolic traits, we show systematic differences in trait heritability between European and African populations, probably reflecting the differential impact of genes and environment. In a multi-trait pan-African GWAS of up to 14,126 individuals, we identify novel loci associated with anthropometric, hematological, lipid, and glycemic traits. We find that several functionally important signals are driven by Africa-specific variants, highlighting the value of studying diverse populations across the region.
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Affiliation(s)
- Deepti Gurdasani
- William Harvey Research Institute, Queen Mary's University of London, London, UK
| | | | - Segun Fatumo
- London School of Hygiene and Tropical Medicine, London, UK; Uganda Medical Informatics Centre (UMIC), MRC/UVRI and LSHTM (Uganda Research Unit), Entebbe, Uganda; H3Africa Bioinformatics Network (H3ABioNet) Node, Center for Genomics Research and Innovation (CGRI)/National Biotechnology Development Agency CGRI/NABDA, Abuja, Nigeria
| | - Guanjie Chen
- Center for Research on Genomics and Global Health, National Institute of Health, Bethesda, MD, USA
| | | | | | | | | | - Marc Haber
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | - Ioanna Tachmazidou
- GSK Medicines Research Centre, Gunnels Wood Road, Stevenage Hertfordshire SG1 2NY, UK
| | - Iain Mathieson
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kenneth Ekoru
- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Marianne K DeGorter
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Rebecca N Nsubuga
- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Chris Finan
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | - Eleanor Wheeler
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Li Chen
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | - David N Cooper
- Institute of Medical Genetics, School of Medicine, Cardiff University, Cardiff, UK
| | - Stephan Schiffels
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Yuan Chen
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | | | | | | | - Alex J Mentzer
- The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | | | - Konstantinos Hatzikotoulas
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; Institute of Translational Genomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Adebowale Adeyemo
- Center for Research on Genomics and Global Health, National Institute of Health, Bethesda, MD, USA
| | - Ayo Doumatey
- Center for Research on Genomics and Global Health, National Institute of Health, Bethesda, MD, USA
| | | | - Louise V Wain
- Department of Health Sciences, University of Leicester, Leicester, UK; National Institute for Health Research, Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Georg Ehret
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1211 Genève 14, Switzerland
| | - Paul L Auer
- Zilber School of Public Health, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Charles L Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Alexander P Reiner
- Department of Epidemiology, University of Washington, Seattle, WA, USA; Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Nora Franceschini
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Dermot Maher
- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Stephen B Montgomery
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | | | | | - Yali Xue
- Wellcome Sanger Institute, Hinxton, Cambridge, UK
| | - Janet Seeley
- London School of Hygiene and Tropical Medicine, London, UK; Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Gershim Asiki
- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Anatoli Kamali
- Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Elizabeth H Young
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Cristina Pomilla
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; Department of Medicine, University of Cambridge, Cambridge, UK
| | - Nicole Soranzo
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; Department of Haematology, University of Cambridge, Cambridge, UK; The National Institute for Health Research Blood and Transplant Unit (NIHR BTRU) in Donor Health and Genomics, University of Cambridge, Cambridge, UK
| | - Eleftheria Zeggini
- Institute of Translational Genomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Fraser Pirie
- Department of Diabetes and Endocrinology, University of KwaZulu-Natal, Durban, South Africa
| | - Andrew P Morris
- The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK; Department of Biostatistics, University of Liverpool, Liverpool, UK
| | | | | | - Ayesha A Motala
- Department of Diabetes and Endocrinology, University of KwaZulu-Natal, Durban, South Africa.
| | - Charles Rotimi
- Center for Research on Genomics and Global Health, National Institute of Health, Bethesda, MD, USA.
| | - Pontiano Kaleebu
- London School of Hygiene and Tropical Medicine, London, UK; Uganda Medical Informatics Centre (UMIC), MRC/UVRI and LSHTM (Uganda Research Unit), Entebbe, Uganda; Medical Research Council/Uganda Virus Research Institute (MRC/UVRI) and London School of Hygiene & Tropical Medicine Uganda Research Unit on AIDS, Entebbe, Uganda.
| | - Inês Barroso
- Wellcome Sanger Institute, Hinxton, Cambridge, UK; MRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
| | - Manj S Sandhu
- Department of Medicine, University of Cambridge, Cambridge, UK.
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114
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The surgeon's role on chemical investigations of the composition of urinary stones. Urolithiasis 2020; 48:435-441. [PMID: 32436004 DOI: 10.1007/s00240-020-01195-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/08/2020] [Indexed: 10/24/2022]
Abstract
The chemical analysis of an urolith is often interpreted as "stone's composition". However, it must be taken into consideration, that in most cases, only a fragment of the stone has been sent to the laboratory. In some recurrent patients, stone compositions either vary considerably between episodes or the analytical result obtained from the stone fragment does not fit with the data of e.g. current 24 h-urinalysis or urinary pH-records. The question arises, whether this outcome may be the result of an improper stone sampling scheme. On a simple layered 2D-stone model composed of two mineral phases it is shown, how the choice of a stone fragment process may influence the result of "stone composition". Depending on the initial position of fragment within the whole stone, the respective calculated analyses can relevantly differ from the whole stone composition as well as strongly between two fragments. Even under the simplified conditions of a 2D-2-component-model "grown" under defined conditions, the differences between the analyses of the different specimens taken from a stone are in part remarkable. The more it can be argued that these differences increase if a real 3D-urolith is investigated. Further sampling biases may evolve and increase the problem of proper sampling:, e.g., if an urolith's more resistant parts remain intact while ESWL or laser-based stone fragmentation ("dusting"), the weak parts became fully disintegrated and removed from the body as fine-grained sludge-the stone's fine fraction is lost although its composition may carry important information on the stone's pathogenesis. Consequently, a "stone analysis" only obtained from the harder remains reveals an incomplete result, a fact that in principle limits its clinical interpretation. Choice of stone fragment is crucial. The extent of the uncertainty of an analysis resulting from potential selection biases should not be underestimated. Thus, sampling should be considered as an important part of the processes of quality assurance and management. Errors made at this early stage of diagnosis finding will affect the analytical result and thus influence the clarification of the underlying pathomechanism. This can lead to an improper metaphylactic strategy potentially causing recurrent stone formation which otherwise would have been prevented. A decision scheme for analysis of urinary stones removed using endoscopic methods is suggested.
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115
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Bergström A, McCarthy SA, Hui R, Almarri MA, Ayub Q, Danecek P, Chen Y, Felkel S, Hallast P, Kamm J, Blanché H, Deleuze JF, Cann H, Mallick S, Reich D, Sandhu MS, Skoglund P, Scally A, Xue Y, Durbin R, Tyler-Smith C. Insights into human genetic variation and population history from 929 diverse genomes. Science 2020; 367:eaay5012. [PMID: 32193295 PMCID: PMC7115999 DOI: 10.1126/science.aay5012] [Citation(s) in RCA: 381] [Impact Index Per Article: 95.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 02/04/2020] [Indexed: 12/17/2022]
Abstract
Genome sequences from diverse human groups are needed to understand the structure of genetic variation in our species and the history of, and relationships between, different populations. We present 929 high-coverage genome sequences from 54 diverse human populations, 26 of which are physically phased using linked-read sequencing. Analyses of these genomes reveal an excess of previously undocumented common genetic variation private to southern Africa, central Africa, Oceania, and the Americas, but an absence of such variants fixed between major geographical regions. We also find deep and gradual population separations within Africa, contrasting population size histories between hunter-gatherer and agriculturalist groups in the past 10,000 years, and a contrast between single Neanderthal but multiple Denisovan source populations contributing to present-day human populations.
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Affiliation(s)
- Anders Bergström
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK.
- The Francis Crick Institute, London NW1 1AT, UK
| | - Shane A McCarthy
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
| | - Ruoyun Hui
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge CB2 3ER, UK
| | | | - Qasim Ayub
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Monash University Malaysia Genomics Facility, Tropical Medicine and Biology Multidisciplinary Platform, 47500 Bandar Sunway, Malaysia
- School of Science, Monash University Malaysia, 47500 Bandar Sunway, Malaysia
| | | | - Yuan Chen
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
| | - Sabine Felkel
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
| | - Pille Hallast
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu 50411, Estonia
| | - Jack Kamm
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
- Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
| | - Hélène Blanché
- Centre d'Etude du Polymorphisme Humain, Fondation Jean Dausset, 75010 Paris, France
- GENMED Labex, ANR-10-LABX-0013 Paris, France
| | - Jean-François Deleuze
- Centre d'Etude du Polymorphisme Humain, Fondation Jean Dausset, 75010 Paris, France
- GENMED Labex, ANR-10-LABX-0013 Paris, France
| | - Howard Cann
- Centre d'Etude du Polymorphisme Humain, Fondation Jean Dausset, 75010 Paris, France
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Manjinder S Sandhu
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, UK
| | | | - Aylwyn Scally
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
| | - Yali Xue
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
| | - Richard Durbin
- Wellcome Sanger Institute, Hinxton CB10 1SA, UK
- Department of Genetics, University of Cambridge, Cambridge CB2 3EH, UK
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116
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d'Errico F, Pitarch Martí A, Shipton C, Le Vraux E, Ndiema E, Goldstein S, Petraglia MD, Boivin N. Trajectories of cultural innovation from the Middle to Later Stone Age in Eastern Africa: Personal ornaments, bone artifacts, and ocher from Panga ya Saidi, Kenya. J Hum Evol 2020; 141:102737. [PMID: 32163764 DOI: 10.1016/j.jhevol.2019.102737] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 01/16/2023]
Abstract
African Middle Stone Age (MSA) populations used pigments, manufactured and wore personal ornaments, made abstract engravings, and produced fully shaped bone tools. However, ongoing research across Africa reveals variability in the emergence of cultural innovations in the MSA and their subsequent development through the Later Stone Age (LSA). When present, it appears that cultural innovations manifest regional variability, suggestive of distinct cultural traditions. In eastern Africa, several Late Pleistocene sites have produced evidence for novel activities, but the chronologies of key behavioral innovations remain unclear. The 3 m deep, well-dated, Panga ya Saidi sequence in eastern Kenya, encompassing 19 layers covering a time span of 78 kyr beginning in late Marine Isotope Stage 5, is the only known African site recording the interplay between cultural and ecological diversity in a coastal forested environment. Excavations have yielded worked and incised bones, ostrich eggshell beads (OES), beads made from seashells, worked and engraved ocher pieces, fragments of coral, and a belemnite fossil. Here, we provide, for the first time, a detailed analysis of this material. This includes a taphonomic, archeozoological, technological, and functional study of bone artifacts; a technological and morphometric analysis of personal ornaments; and a technological and geochemical analysis of ocher pieces. The interpretation of the results stemming from the analysis of OES beads is guided by an ethnoarcheological perspective and field observations. We demonstrate that key cultural innovations on the eastern African coast are evident by 67 ka and exhibit remarkable diversity through the LSA and Iron Age. We suggest the cultural trajectories evident at Panga ya Saidi were shaped by both regional traditions and cultural/demic diffusion.
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Affiliation(s)
- Francesco d'Errico
- UMR 5199 CNRS De La Préhistoire à L'Actuel: Culture, Environnement, et Anthropologie (PACEA), Université Bordeaux, Allée Geoffroy Saint Hilaire, CS 50023 F - 33615 Pessac CEDEX, Talence, France; Centre for Early Sapiens Behaviour, Øysteinsgate 3, Postboks 7805, 5020 University of Bergen, Norway.
| | - Africa Pitarch Martí
- UMR 5199 CNRS De La Préhistoire à L'Actuel: Culture, Environnement, et Anthropologie (PACEA), Université Bordeaux, Allée Geoffroy Saint Hilaire, CS 50023 F - 33615 Pessac CEDEX, Talence, France; Seminari d'Estudis i Recerques Prehistòriques (SERP), Facultat de Geografia i Història, Departament d'Història i Arqueologia, Universitat de Barcelona, Montalegre 6, 08001, Barcelona, Spain
| | - Ceri Shipton
- Centre of Excellence for Australian Biodiversity and Heritage, College of Asia and the Pacific, The Australian National University, ACT 0200, Australia
| | - Emma Le Vraux
- UMR 5199 CNRS De La Préhistoire à L'Actuel: Culture, Environnement, et Anthropologie (PACEA), Université Bordeaux, Allée Geoffroy Saint Hilaire, CS 50023 F - 33615 Pessac CEDEX, Talence, France
| | - Emmanuel Ndiema
- National Museums of Kenya, Department of Earth Sciences, Box 40658 - 00100, Nairobi, Kenya
| | - Steven Goldstein
- Department of Archaeology, Max Planck Institute for the Science of Human History, Kahlaische Strasse 10, D-07745 Jena, Germany
| | - Michael D Petraglia
- Department of Archaeology, Max Planck Institute for the Science of Human History, Kahlaische Strasse 10, D-07745 Jena, Germany; Human Origins Program, Smithsonian Institution, Washington, D.C., 20560, USA; School of Social Science, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Nicole Boivin
- Department of Archaeology, Max Planck Institute for the Science of Human History, Kahlaische Strasse 10, D-07745 Jena, Germany; School of Social Science, The University of Queensland, Brisbane, QLD 4072, Australia; Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada; Department of Anthropology, National Museum of Natural History, Smithsonian Institution, 10th St. & Constitution Ave. NW Washington, D.C. 20560, USA
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117
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Sirak K, Fernandes D, Cheronet O, Harney E, Mah M, Mallick S, Rohland N, Adamski N, Broomandkhoshbacht N, Callan K, Candilio F, Lawson AM, Mandl K, Oppenheimer J, Stewardson K, Zalzala F, Anders A, Bartík J, Coppa A, Dashtseveg T, Évinger S, Farkaš Z, Hajdu T, Bayarsaikhan J, McIntyre L, Moiseyev V, Okumura M, Pap I, Pietrusewsky M, Raczky P, Šefčáková A, Soficaru A, Szeniczey T, Szőke BM, Van Gerven D, Vasilyev S, Bell L, Reich D, Pinhasi R. Human auditory ossicles as an alternative optimal source of ancient DNA. Genome Res 2020. [PMID: 32098773 DOI: 10.1101/654749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
DNA recovery from ancient human remains has revolutionized our ability to reconstruct the genetic landscape of the past. Ancient DNA research has benefited from the identification of skeletal elements, such as the cochlear part of the osseous inner ear, that provides optimal contexts for DNA preservation; however, the rich genetic information obtained from the cochlea must be counterbalanced against the loss of morphological information caused by its sampling. Motivated by similarities in developmental processes and histological properties between the cochlea and auditory ossicles, we evaluate the ossicles as an alternative source of ancient DNA. We show that ossicles perform comparably to the cochlea in terms of DNA recovery, finding no substantial reduction in data quantity and minimal differences in data quality across preservation conditions. Ossicles can be sampled from intact skulls or disarticulated petrous bones without damage to surrounding bone, and we argue that they should be used when available to reduce damage to human remains. Our results identify another optimal skeletal element for ancient DNA analysis and add to a growing toolkit of sampling methods that help to better preserve skeletal remains for future research while maximizing the likelihood that ancient DNA analysis will produce useable results.
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Affiliation(s)
- Kendra Sirak
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
| | - Daniel Fernandes
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
- CIAS, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Olivia Cheronet
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
| | - Eadaoin Harney
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- The Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Cambridge, Massachusetts 02138, USA and Jena, D-07745, Germany
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kimberly Callan
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Francesca Candilio
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kirsten Mandl
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Alexandra Anders
- Institute of Archaeological Sciences, Eötvös Loránd University, H-1088 Budapest, Hungary
| | - Juraj Bartík
- Slovak National Museum-Archaeological Museum, 810 06 Bratislava 16, Slovak Republic
| | - Alfredo Coppa
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome 00185, Italy
| | - Tumen Dashtseveg
- Department of Anthropology and Archaeology, National University of Mongolia, Ulaanbaatar 14200, Mongolia
| | - Sándor Évinger
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
| | - Zdeněk Farkaš
- Slovak National Museum-Archaeological Museum, 810 06 Bratislava 16, Slovak Republic
| | - Tamás Hajdu
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
- Department of Biological Anthropology, Institute of Biology, Faculty of Science, Eötvös Loránd University Budapest, H-1117 Budapest, Hungary
| | - Jamsranjav Bayarsaikhan
- Department of Anthropology and Archaeology, National University of Mongolia, Ulaanbaatar 14200, Mongolia
- National Museum of Mongolia, Ulaanbaatar 210146, Mongolia
| | | | - Vyacheslav Moiseyev
- Peter the Great Museum of Anthropology and Ethnography (Kunstkamera), Russian Academy of Science, St. Petersburg 199034, Russia
| | - Mercedes Okumura
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, Cidade Universitária 05508-090 São Paulo, Brazil
| | - Ildikó Pap
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
| | - Michael Pietrusewsky
- Department of Anthropology, University of Hawai'i at Mānoa, Honolulu, Hawaii 96822, USA
| | - Pál Raczky
- Institute of Archaeological Sciences, Eötvös Loránd University, H-1088 Budapest, Hungary
| | - Alena Šefčáková
- Department of Anthropology, Slovak National Museum-Natural History Museum, 810 06 Bratislava 16, Slovak Republic
| | - Andrei Soficaru
- "Fr. J. Rainer" Institute of Anthropology, Romanian Academy, 050474 Bucharest, Romania
| | - Tamás Szeniczey
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
- Department of Biological Anthropology, Institute of Biology, Faculty of Science, Eötvös Loránd University Budapest, H-1117 Budapest, Hungary
| | - Béla Miklós Szőke
- Institute of Archaeology, Research Centre for the Humanities, Hungarian Academy of Sciences, H-1097 Budapest, Hungary
| | - Dennis Van Gerven
- Department of Anthropology, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Sergey Vasilyev
- Institute of Ethnology and Anthropology, RAS, Moscow, 119991, Russia
| | - Lynne Bell
- Centre for Forensic Research, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Ron Pinhasi
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
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118
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Wang K, Mathieson I, O’Connell J, Schiffels S. Tracking human population structure through time from whole genome sequences. PLoS Genet 2020; 16:e1008552. [PMID: 32150539 PMCID: PMC7082067 DOI: 10.1371/journal.pgen.1008552] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 03/19/2020] [Accepted: 12/04/2019] [Indexed: 11/18/2022] Open
Abstract
The genetic diversity of humans, like many species, has been shaped by a complex pattern of population separations followed by isolation and subsequent admixture. This pattern, reaching at least as far back as the appearance of our species in the paleontological record, has left its traces in our genomes. Reconstructing a population's history from these traces is a challenging problem. Here we present a novel approach based on the Multiple Sequentially Markovian Coalescent (MSMC) to analyze the separation history between populations. Our approach, called MSMC-IM, uses an improved implementation of the MSMC (MSMC2) to estimate coalescence rates within and across pairs of populations, and then fits a continuous Isolation-Migration model to these rates to obtain a time-dependent estimate of gene flow. We show, using simulations, that our method can identify complex demographic scenarios involving post-split admixture or archaic introgression. We apply MSMC-IM to whole genome sequences from 15 worldwide populations, tracking the process of human genetic diversification. We detect traces of extremely deep ancestry between some African populations, with around 1% of ancestry dating to divergences older than a million years ago.
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Affiliation(s)
- Ke Wang
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Iain Mathieson
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Jared O’Connell
- 23andMe Inc., Mountain View, California, United States of America
| | - Stephan Schiffels
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Jena, Germany
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119
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Sirak K, Fernandes D, Cheronet O, Harney E, Mah M, Mallick S, Rohland N, Adamski N, Broomandkhoshbacht N, Callan K, Candilio F, Lawson AM, Mandl K, Oppenheimer J, Stewardson K, Zalzala F, Anders A, Bartík J, Coppa A, Dashtseveg T, Évinger S, Farkaš Z, Hajdu T, Bayarsaikhan J, McIntyre L, Moiseyev V, Okumura M, Pap I, Pietrusewsky M, Raczky P, Šefčáková A, Soficaru A, Szeniczey T, Szőke BM, Van Gerven D, Vasilyev S, Bell L, Reich D, Pinhasi R. Human auditory ossicles as an alternative optimal source of ancient DNA. Genome Res 2020; 30:427-436. [PMID: 32098773 PMCID: PMC7111520 DOI: 10.1101/gr.260141.119] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/11/2020] [Indexed: 12/29/2022]
Abstract
DNA recovery from ancient human remains has revolutionized our ability to reconstruct the genetic landscape of the past. Ancient DNA research has benefited from the identification of skeletal elements, such as the cochlear part of the osseous inner ear, that provides optimal contexts for DNA preservation; however, the rich genetic information obtained from the cochlea must be counterbalanced against the loss of morphological information caused by its sampling. Motivated by similarities in developmental processes and histological properties between the cochlea and auditory ossicles, we evaluate the ossicles as an alternative source of ancient DNA. We show that ossicles perform comparably to the cochlea in terms of DNA recovery, finding no substantial reduction in data quantity and minimal differences in data quality across preservation conditions. Ossicles can be sampled from intact skulls or disarticulated petrous bones without damage to surrounding bone, and we argue that they should be used when available to reduce damage to human remains. Our results identify another optimal skeletal element for ancient DNA analysis and add to a growing toolkit of sampling methods that help to better preserve skeletal remains for future research while maximizing the likelihood that ancient DNA analysis will produce useable results.
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Affiliation(s)
- Kendra Sirak
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
| | - Daniel Fernandes
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland.,Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria.,CIAS, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Olivia Cheronet
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland.,Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
| | - Eadaoin Harney
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA.,The Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Cambridge, Massachusetts 02138, USA and Jena, D-07745, Germany
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kimberly Callan
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Francesca Candilio
- Earth Institute and School of Archaeology, University College Dublin, Dublin 4, Ireland
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kirsten Mandl
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Alexandra Anders
- Institute of Archaeological Sciences, Eötvös Loránd University, H-1088 Budapest, Hungary
| | - Juraj Bartík
- Slovak National Museum-Archaeological Museum, 810 06 Bratislava 16, Slovak Republic
| | - Alfredo Coppa
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome 00185, Italy
| | - Tumen Dashtseveg
- Department of Anthropology and Archaeology, National University of Mongolia, Ulaanbaatar 14200, Mongolia
| | - Sándor Évinger
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
| | - Zdeněk Farkaš
- Slovak National Museum-Archaeological Museum, 810 06 Bratislava 16, Slovak Republic
| | - Tamás Hajdu
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary.,Department of Biological Anthropology, Institute of Biology, Faculty of Science, Eötvös Loránd University Budapest, H-1117 Budapest, Hungary
| | - Jamsranjav Bayarsaikhan
- Department of Anthropology and Archaeology, National University of Mongolia, Ulaanbaatar 14200, Mongolia.,National Museum of Mongolia, Ulaanbaatar 210146, Mongolia
| | | | - Vyacheslav Moiseyev
- Peter the Great Museum of Anthropology and Ethnography (Kunstkamera), Russian Academy of Science, St. Petersburg 199034, Russia
| | - Mercedes Okumura
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, Cidade Universitária 05508-090 São Paulo, Brazil
| | - Ildikó Pap
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary
| | - Michael Pietrusewsky
- Department of Anthropology, University of Hawai'i at Mānoa, Honolulu, Hawaii 96822, USA
| | - Pál Raczky
- Institute of Archaeological Sciences, Eötvös Loránd University, H-1088 Budapest, Hungary
| | - Alena Šefčáková
- Department of Anthropology, Slovak National Museum-Natural History Museum, 810 06 Bratislava 16, Slovak Republic
| | - Andrei Soficaru
- "Fr. J. Rainer" Institute of Anthropology, Romanian Academy, 050474 Bucharest, Romania
| | - Tamás Szeniczey
- Department of Anthropology, Hungarian Natural History Museum, H-1083 Budapest, Hungary.,Department of Biological Anthropology, Institute of Biology, Faculty of Science, Eötvös Loránd University Budapest, H-1117 Budapest, Hungary
| | - Béla Miklós Szőke
- Institute of Archaeology, Research Centre for the Humanities, Hungarian Academy of Sciences, H-1097 Budapest, Hungary
| | - Dennis Van Gerven
- Department of Anthropology, University of Colorado at Boulder, Boulder, Colorado 80309, USA
| | - Sergey Vasilyev
- Institute of Ethnology and Anthropology, RAS, Moscow, 119991, Russia
| | - Lynne Bell
- Centre for Forensic Research, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Ron Pinhasi
- Department of Evolutionary Anthropology, University of Vienna, Vienna, 1090, Austria
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120
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Aris-Brosou S. Direct Evidence of an Increasing Mutational Load in Humans. Mol Biol Evol 2020; 36:2823-2829. [PMID: 31424543 DOI: 10.1093/molbev/msz192] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The extent to which selection has shaped present-day human populations has attracted intense scrutiny, and examples of local adaptations abound. However, the evolutionary trajectory of alleles that, today, are deleterious has received much less attention. To address this question, the genomes of 2,062 individuals, including 1,179 ancient humans, were reanalyzed to assess how frequencies of risk alleles and their homozygosity changed through space and time in Europe over the past 45,000 years. Although the overall deleterious homozygosity has consistently decreased, risk alleles have steadily increased in frequency over that period of time. Those that increased most are associated with diseases such as asthma, Crohn disease, diabetes, and obesity, which are highly prevalent in present-day populations. These findings may not run against the existence of local adaptations but highlight the limitations imposed by drift and population dynamics on the strength of selection in purging deleterious mutations from human populations.
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Affiliation(s)
- Stéphane Aris-Brosou
- Department of Biology, University of Ottawa, Ottawa, ON, Canada.,Department of Mathematics and Statistics, University of Ottawa, Ottawa, ON, Canada
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121
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González-Fortes G, Tassi F, Trucchi E, Henneberger K, Paijmans JLA, Díez-Del-Molino D, Schroeder H, Susca RR, Barroso-Ruíz C, Bermudez FJ, Barroso-Medina C, Bettencourt AMS, Sampaio HA, Grandal-d'Anglade A, Salas A, de Lombera-Hermida A, Fabregas Valcarce R, Vaquero M, Alonso S, Lozano M, Rodríguez-Alvarez XP, Fernández-Rodríguez C, Manica A, Hofreiter M, Barbujani G. A western route of prehistoric human migration from Africa into the Iberian Peninsula. Proc Biol Sci 2020; 286:20182288. [PMID: 30963949 DOI: 10.1098/rspb.2018.2288] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Being at the western fringe of Europe, Iberia had a peculiar prehistory and a complex pattern of Neolithization. A few studies, all based on modern populations, reported the presence of DNA of likely African origin in this region, generally concluding it was the result of recent gene flow, probably during the Islamic period. Here, we provide evidence of much older gene flow from Africa to Iberia by sequencing whole genomes from four human remains from northern Portugal and southern Spain dated around 4000 years BP (from the Middle Neolithic to the Bronze Age). We found one of them to carry an unequivocal sub-Saharan mitogenome of most probably West or West-Central African origin, to our knowledge never reported before in prehistoric remains outside Africa. Our analyses of ancient nuclear genomes show small but significant levels of sub-Saharan African affinity in several ancient Iberian samples, which indicates that what we detected was not an occasional individual phenomenon, but an admixture event recognizable at the population level. We interpret this result as evidence of an early migration process from Africa into the Iberian Peninsula through a western route, possibly across the Strait of Gibraltar.
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Affiliation(s)
- G González-Fortes
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - F Tassi
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - E Trucchi
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - K Henneberger
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - J L A Paijmans
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - D Díez-Del-Molino
- 3 Department of Bioinformatics and Genetics, Swedish Museum of Natural History , 104 05 Stockholm , Sweden
| | - H Schroeder
- 4 Section for Evolutionary Genomics, Natural History Museum of Denmark, University of Copenhagen , 1353 Copenhagen K , Denmark
| | - R R Susca
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
| | - C Barroso-Ruíz
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - F J Bermudez
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - C Barroso-Medina
- 5 Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH) , 14900 Lucena, Córdoba , Spain
| | - A M S Bettencourt
- 6 Landscape, Heritage and Territory Laboratory-Lab2PT, Department of History, University of Minho , 4700-057 Braga , Portugal
| | - H A Sampaio
- 7 Landscape, Heritage and Territory Laboratory-Lab2PT, Department of Hospitality and Tourism, Polytechnic Institute of Cávado and Ave , Barcelos , Portugal
| | - A Grandal-d'Anglade
- 8 Universitary Institute of Geology, University of Coruña , A Coruña 15081 , Spain
| | - A Salas
- 9 Unidade de Xenética, Instituto de Ciencias Forenses, Universidade de Santiago de Compostela, and GenPoB (IDIS-SERGAS) , Galicia , Spain
| | - A de Lombera-Hermida
- 10 Department of History GEPN-AAT, University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - R Fabregas Valcarce
- 10 Department of History GEPN-AAT, University of Santiago de Compostela , 15782 Santiago de Compostela , Spain
| | - M Vaquero
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - S Alonso
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - M Lozano
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | - X P Rodríguez-Alvarez
- 11 Department of History and History of Art, Rovira i Virgili University , 43002 Tarragona , Spain.,12 Institut Català de Paleoecologia Humana i Evolució Social (IPHES) , 43007 Tarragona , Spain
| | | | - A Manica
- 14 Department of Zoology, University of Cambridge , Cambridge CB2 3EJ , UK
| | - M Hofreiter
- 2 Institute for Biochemistry and Biology, University of Potsdam , 14476 Potsdam OT Golm , Germany
| | - G Barbujani
- 1 Department of Life Science and Biotechnology, University of Ferrara , 44121 Ferrara , Italy
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122
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Khrunin AV, Khvorykh GV, Fedorov AN, Limborska SA. Genomic landscape of the signals of positive natural selection in populations of Northern Eurasia: A view from Northern Russia. PLoS One 2020; 15:e0228778. [PMID: 32023328 PMCID: PMC7001972 DOI: 10.1371/journal.pone.0228778] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 01/23/2020] [Indexed: 12/15/2022] Open
Abstract
Natural selection of beneficial genetic variants played a critical role in human adaptation to a wide range of environmental conditions. Northern Eurasia, despite its severe climate, is home to lots of ethnically diverse populations. The genetic variants associated with the survival of these populations have hardly been analyzed. We searched for the genomic signatures of positive selection in (1) the genome-wide microarray data of 432 people from eight different northern Russian populations and (2) the whole-genome sequences of 250 people from Northern Eurasia from a public repository through testing the extended haplotype homozigosity (EHH) and direct comparison of allele frequency, respectively. The 20 loci with the strongest selection signals were characterized in detail. Among the top EHH hits were the NRG3 and NBEA genes, which are involved in the development and functioning of the neural system, the PTPRM gene, which mediates cell-cell interactions and adhesion, and a region on chromosome 4 (chr4:28.7-28.9 Mb) that contained several loci affiliated with different classes of non-coding RNAs (RN7SL101P, MIR4275, MESTP3, and LINC02364). NBEA and the region on chromosome 4 were novel selection targets that were identified for the first time in Western Siberian populations. Cross-population comparisons of EHH profiles suggested a particular role for the chr4:28.7-28.9 Mb region in the local adaptation of Western Siberians. The strongest selection signal identified in Siberian sequenced genomes was formed by six SNPs on chromosome 11 (chr11:124.9-125.2 Mb). This region included well-known genes SLC37A2 and PKNOX2. SLC37A2 is most-highly expressed in the gut. Its expression is regulated by vitamin D, which is often deficient in northern regions. The PKNOX2 gene is a transcription factor of the homeobox family that is expressed in the brain and many other tissues. This gene is associated with alcohol addiction, which is widespread in many Northern Eurasian populations.
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Affiliation(s)
- Andrey V. Khrunin
- Department of Molecular Bases of Human Genetics, Institute of Molecular Genetics of Russian Academy of Sciences, Moscow, Russia
| | - Gennady V. Khvorykh
- Department of Molecular Bases of Human Genetics, Institute of Molecular Genetics of Russian Academy of Sciences, Moscow, Russia
| | - Alexei N. Fedorov
- Department of Molecular Bases of Human Genetics, Institute of Molecular Genetics of Russian Academy of Sciences, Moscow, Russia
- Department of Medicine, University of Toledo, Toledo, Ohio, United States of America
| | - Svetlana A. Limborska
- Department of Molecular Bases of Human Genetics, Institute of Molecular Genetics of Russian Academy of Sciences, Moscow, Russia
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123
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Durvasula A, Sankararaman S. Recovering signals of ghost archaic introgression in African populations. SCIENCE ADVANCES 2020; 6:eaax5097. [PMID: 32095519 PMCID: PMC7015685 DOI: 10.1126/sciadv.aax5097] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 12/03/2019] [Indexed: 05/18/2023]
Abstract
While introgression from Neanderthals and Denisovans has been documented in modern humans outside Africa, the contribution of archaic hominins to the genetic variation of present-day Africans remains poorly understood. We provide complementary lines of evidence for archaic introgression into four West African populations. Our analyses of site frequency spectra indicate that these populations derive 2 to 19% of their genetic ancestry from an archaic population that diverged before the split of Neanderthals and modern humans. Using a method that can identify segments of archaic ancestry without the need for reference archaic genomes, we built genome-wide maps of archaic ancestry in the Yoruba and the Mende populations. Analyses of these maps reveal segments of archaic ancestry at high frequency in these populations that represent potential targets of adaptive introgression. Our results reveal the substantial contribution of archaic ancestry in shaping the gene pool of present-day West African populations.
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Affiliation(s)
- Arun Durvasula
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sriram Sankararaman
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Computer Science, University of California, Los Angeles, Los Angeles, CA, USA
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, USA
- Department of Computational Medicine, University of California, Los Angeles, Los Angeles, CA, USA
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124
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Identifying and Interpreting Apparent Neanderthal Ancestry in African Individuals. Cell 2020; 180:677-687.e16. [PMID: 32004458 DOI: 10.1016/j.cell.2020.01.012] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/13/2019] [Accepted: 01/07/2020] [Indexed: 01/27/2023]
Abstract
Admixture has played a prominent role in shaping patterns of human genomic variation, including gene flow with now-extinct hominins like Neanderthals and Denisovans. Here, we describe a novel probabilistic method called IBDmix to identify introgressed hominin sequences, which, unlike existing approaches, does not use a modern reference population. We applied IBDmix to 2,504 individuals from geographically diverse populations to identify and analyze Neanderthal sequences segregating in modern humans. Strikingly, we find that African individuals carry a stronger signal of Neanderthal ancestry than previously thought. We show that this can be explained by genuine Neanderthal ancestry due to migrations back to Africa, predominately from ancestral Europeans, and gene flow into Neanderthals from an early dispersing group of humans out of Africa. Our results refine our understanding of Neanderthal ancestry in African and non-African populations and demonstrate that remnants of Neanderthal genomes survive in every modern human population studied to date.
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125
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Vicente M, Jakobsson M, Ebbesen P, Schlebusch CM. Genetic Affinities among Southern Africa Hunter-Gatherers and the Impact of Admixing Farmer and Herder Populations. Mol Biol Evol 2020; 36:1849-1861. [PMID: 31288264 PMCID: PMC6735883 DOI: 10.1093/molbev/msz089] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Southern African indigenous groups, traditionally hunter-gatherers (San) and herders (Khoekhoe), are commonly referred to as “Khoe-San” populations and have a long history in southern Africa. Their ancestors were largely isolated up until ∼2,000 years ago before the arrival of pastoralists and farmers in southern Africa. Assessing relationships among regional Khoe-San groups has been challenging due to admixture with immigrant populations that obscure past population affinities and gene flow among these autochthonous communities. We re-evaluate a combined genome-wide data set of previously published southern Africa Khoe-San populations in conjunction with novel data from Khoe-San individuals collected in Xade (Central Kalahari Game Reserve, Botswana) prior to their resettlement outside the reserve. After excluding regions in the genome that trace their ancestry to recent migrant groups, the genetic diversity of 20 Khoe-San groups fitted an isolation-by-distance model. Even though isolation-by-distance explained most genetic affinities between the different autochthonous groups, additional signals of contact between Khoe-San groups could be detected. For instance, we found stronger genetic affinities, than what would be explained by isolation-by-distance gene flow, between the two geographically separated Khoe-San groups, who speak branches of the Kx’a-language family (ǂHoan and Ju). We also scanned the genome-wide data for signals of adaptive gene flow from farmers/herders into Khoe-San groups and identified a number of genomic regions potentially introduced by the arrival of the new groups. This study provides a comprehensive picture of affinities among Khoe-San groups, prior to the arrival of recent migrants, and found that these affinities are primarily determined by the geographic landscape.
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Affiliation(s)
- Mário Vicente
- Human Evolution, Department of Organismal Biology, Uppsala University, Uppsala, Sweden
| | - Mattias Jakobsson
- Human Evolution, Department of Organismal Biology, Uppsala University, Uppsala, Sweden.,Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa.,SciLifeLab, Uppsala, Sweden
| | - Peter Ebbesen
- Department of Health Science and Technology, University of Aalborg, Aalborg, Denmark
| | - Carina M Schlebusch
- Human Evolution, Department of Organismal Biology, Uppsala University, Uppsala, Sweden.,Palaeo-Research Institute, University of Johannesburg, Auckland Park, South Africa.,SciLifeLab, Uppsala, Sweden
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126
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Chaichoompu K, Abegaz F, Cavadas B, Fernandes V, Müller-Myhsok B, Pereira L, Van Steen K. A different view on fine-scale population structure in Western African populations. Hum Genet 2020; 139:45-59. [PMID: 31630246 PMCID: PMC6942040 DOI: 10.1007/s00439-019-02069-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 10/09/2019] [Indexed: 01/03/2023]
Abstract
Due to its long genetic evolutionary history, Africans exhibit more genetic variation than any other population in the world. Their genetic diversity further lends itself to subdivisions of Africans into groups of individuals with a genetic similarity of varying degrees of granularity. It remains challenging to detect fine-scale structure in a computationally efficient and meaningful way. In this paper, we present a proof-of-concept of a novel fine-scale population structure detection tool with Western African samples. These samples consist of 1396 individuals from 25 ethnic groups (two groups are African American descendants). The strategy is based on a recently developed tool called IPCAPS. IPCAPS, or Iterative Pruning to CApture Population Structure, is a genetic divisive clustering strategy that enhances iterative pruning PCA, is robust to outliers and does not require a priori computation of haplotypes. Our strategy identified in total 12 groups and 6 groups were revealed as fine-scale structure detected in the samples from Cameroon, Gambia, Mali, Southwest USA, and Barbados. Our finding helped to explain evolutionary processes in the analyzed West African samples and raise awareness for fine-scale structure resolution when conducting genome-wide association and interaction studies.
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Affiliation(s)
- Kridsadakorn Chaichoompu
- GIGA-R Medical Genomics-BIO3, University of Liege, Avenue de l’Hôpital 11, 4000 Liege, Belgium
- Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Fentaw Abegaz
- GIGA-R Medical Genomics-BIO3, University of Liege, Avenue de l’Hôpital 11, 4000 Liege, Belgium
| | - Bruno Cavadas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
| | - Verónica Fernandes
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
| | | | - Luísa Pereira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), Rua Júlio Amaral de Carvalho, 45, 4200-135 Porto, Portugal
| | - Kristel Van Steen
- GIGA-R Medical Genomics-BIO3, University of Liege, Avenue de l’Hôpital 11, 4000 Liege, Belgium
- WELBIO (Walloon Excellence in Lifesciences and Biotechnology), Avenue Pasteur 6, 1300 Wavre, Belgium
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127
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Lipson M, Ribot I, Mallick S, Rohland N, Olalde I, Adamski N, Broomandkhoshbacht N, Lawson AM, López S, Oppenheimer J, Stewardson K, Asombang RN, Bocherens H, Bradman N, Culleton BJ, Cornelissen E, Crevecoeur I, de Maret P, Fomine FLM, Lavachery P, Mindzie CM, Orban R, Sawchuk E, Semal P, Thomas MG, Van Neer W, Veeramah KR, Kennett DJ, Patterson N, Hellenthal G, Lalueza-Fox C, MacEachern S, Prendergast ME, Reich D. Ancient West African foragers in the context of African population history. Nature 2020; 577:665-670. [PMID: 31969706 PMCID: PMC8386425 DOI: 10.1038/s41586-020-1929-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 11/29/2019] [Indexed: 12/31/2022]
Abstract
Our knowledge of ancient human population structure in sub-Saharan Africa, particularly prior to the advent of food production, remains limited. Here we report genome-wide DNA data from four children-two of whom were buried approximately 8,000 years ago and two 3,000 years ago-from Shum Laka (Cameroon), one of the earliest known archaeological sites within the probable homeland of the Bantu language group1-11. One individual carried the deeply divergent Y chromosome haplogroup A00, which today is found almost exclusively in the same region12,13. However, the genome-wide ancestry profiles of all four individuals are most similar to those of present-day hunter-gatherers from western Central Africa, which implies that populations in western Cameroon today-as well as speakers of Bantu languages from across the continent-are not descended substantially from the population represented by these four people. We infer an Africa-wide phylogeny that features widespread admixture and three prominent radiations, including one that gave rise to at least four major lineages deep in the history of modern humans.
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Affiliation(s)
- Mark Lipson
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
| | - Isabelle Ribot
- Département d'Anthropologie, Université de Montréal, Montreal, Quebec, Canada
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Medical and Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Iñigo Olalde
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Institute of Evolutionary Biology (CSIC-UPF), Barcelona, Spain
| | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Department of Anthropology, University of California, Santa Cruz, CA, USA
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Saioa López
- UCL Genetics Institute, University College London, London, UK
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Department of Biomolecular Engineering, University of California, Santa Cruz, CA, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | | | - Hervé Bocherens
- Department of Geosciences, Biogeology, University of Tübingen, Tübingen, Germany
- Senckenberg Research Centre for Human Evolution and Palaeoenvironment, University of Tübingen, Tübingen, Germany
| | - Neil Bradman
- UCL Genetics Institute, University College London, London, UK
- The Henry Stewart Group, London, UK
| | - Brendan J Culleton
- Institutes of Energy and the Environment, Pennsylvania State University, University Park, PA, USA
| | - Els Cornelissen
- Department of Cultural Anthropology and History, Royal Museum for Central Africa, Tervuren, Belgium
| | | | - Pierre de Maret
- Faculté de Philosophie et Sciences Sociales, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Philippe Lavachery
- Agence Wallonne du Patrimoine, Service Public de Wallonie, Namur, Belgium
| | | | - Rosine Orban
- Royal Belgian Institute of Natural Sciences, Brussels, Belgium
| | - Elizabeth Sawchuk
- Department of Anthropology, Stony Brook University, Stony Brook, NY, USA
| | - Patrick Semal
- Royal Belgian Institute of Natural Sciences, Brussels, Belgium
| | - Mark G Thomas
- UCL Genetics Institute, University College London, London, UK
- Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Wim Van Neer
- Royal Belgian Institute of Natural Sciences, Brussels, Belgium
- Department of Biology, University of Leuven, Leuven, Belgium
| | - Krishna R Veeramah
- Department of Ecology and Evolution, Stony Brook University, Stony Brook, NY, USA
| | - Douglas J Kennett
- Department of Anthropology, University of California, Santa Barbara, CA, USA
| | - Nick Patterson
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - Garrett Hellenthal
- UCL Genetics Institute, University College London, London, UK
- Department of Genetics, Evolution and Environment, University College London, London, UK
| | | | - Scott MacEachern
- Division of Social Science, Duke Kunshan University, Kunshan, China
| | - Mary E Prendergast
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Sociology and Anthropology, Saint Louis University, Madrid, Spain
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Medical and Population Genetics Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
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128
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Hübler R, Key FM, Warinner C, Bos KI, Krause J, Herbig A. HOPS: automated detection and authentication of pathogen DNA in archaeological remains. Genome Biol 2019; 20:280. [PMID: 31842945 PMCID: PMC6913047 DOI: 10.1186/s13059-019-1903-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 11/27/2019] [Indexed: 01/28/2023] Open
Abstract
High-throughput DNA sequencing enables large-scale metagenomic analyses of complex biological systems. Such analyses are not restricted to present-day samples and can also be applied to molecular data from archaeological remains. Investigations of ancient microbes can provide valuable information on past bacterial commensals and pathogens, but their molecular detection remains a challenge. Here, we present HOPS (Heuristic Operations for Pathogen Screening), an automated bacterial screening pipeline for ancient DNA sequences that provides detailed information on species identification and authenticity. HOPS is a versatile tool for high-throughput screening of DNA from archaeological material to identify candidates for genome-level analyses.
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Affiliation(s)
- Ron Hübler
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - Felix M Key
- Max Planck Institute for the Science of Human History, Jena, Germany. .,Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA. .,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
| | | | - Kirsten I Bos
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - Johannes Krause
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - Alexander Herbig
- Max Planck Institute for the Science of Human History, Jena, Germany.
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129
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West Asian sources of the Eurasian component in Ethiopians: a reassessment. Sci Rep 2019; 9:18811. [PMID: 31827175 PMCID: PMC6906521 DOI: 10.1038/s41598-019-55344-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/25/2019] [Indexed: 01/17/2023] Open
Abstract
The presence of genomic signatures of Eurasian origin in contemporary Ethiopians has been reported by several authors and estimated to have arrived in the area from 3000 years ago. Several studies reported plausible source populations for such a signature, using haplotype based methods on modern data or single-site methods on modern or ancient data. These studies did not reach a consensus and suggested an Anatolian or Sardinia-like proxy, broadly Levantine or Neolithic Levantine as possible sources. We demonstrate, however, that the deeply divergent, autochthonous African component which accounts for ~50% of most contemporary Ethiopian genomes, affects the overall allele frequency spectrum to an extent that makes it hard to control for it and, at once, to discern between subtly different, yet important, Eurasian sources (such as Anatolian or Levant Neolithic ones). Here we re-assess pattern of allele sharing between the Eurasian component of Ethiopians (here called “NAF” for Non African) and ancient and modern proxies. Our results unveil a genomic legacy that may connect the Eurasian genetic component of contemporary Ethiopians with Sea People and with population movements that affected the Mediterranean area and the Levant after the fall of the Minoan civilization.
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130
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McHugo GP, Dover MJ, MacHugh DE. Unlocking the origins and biology of domestic animals using ancient DNA and paleogenomics. BMC Biol 2019; 17:98. [PMID: 31791340 PMCID: PMC6889691 DOI: 10.1186/s12915-019-0724-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 11/13/2019] [Indexed: 12/13/2022] Open
Abstract
Animal domestication has fascinated biologists since Charles Darwin first drew the parallel between evolution via natural selection and human-mediated breeding of livestock and companion animals. In this review we show how studies of ancient DNA from domestic animals and their wild progenitors and congeners have shed new light on the genetic origins of domesticates, and on the process of domestication itself. High-resolution paleogenomic data sets now provide unprecedented opportunities to explore the development of animal agriculture across the world. In addition, functional population genomics studies of domestic and wild animals can deliver comparative information useful for understanding recent human evolution.
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Affiliation(s)
- Gillian P McHugo
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8, Ireland
| | - Michael J Dover
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8, Ireland
| | - David E MacHugh
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Dublin, D04 V1W8, Ireland.
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, D04 V1W8, Ireland.
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131
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Miller JM, Sawchuk EA. Ostrich eggshell bead diameter in the Holocene: Regional variation with the spread of herding in eastern and southern Africa. PLoS One 2019; 14:e0225143. [PMID: 31774851 PMCID: PMC6880992 DOI: 10.1371/journal.pone.0225143] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 10/29/2019] [Indexed: 11/23/2022] Open
Abstract
Despite their ubiquity in Holocene African archaeological assemblages, ostrich eggshell (OES) beads are rarely studied in detail. An exception is in southern Africa, where there is a proposed relationship between OES bead diameter and the arrival of herding ~2000 years before present. In 1987, Leon Jacobson first observed that beads from forager sites in Namibia tended to be smaller than those associated with herder sites. Studies examining bead size around the Western Cape have generally confirmed Jacobson's findings, though the driving forces of the diameter change remain unknown. Since this time, diameter has become an informal way of distinguishing forager and herder assemblages in southern Africa, but no large-scale studies of OES bead variation have been undertaken. Here we present an expanded analysis of Holocene OES bead diameters from southern, and for the first time, eastern Africa. Results reveal distinct patterns in OES bead size over time, reflecting different local dynamics associated with the spread of herding. In southern Africa, OES diameters display low variability and smaller absolute size through time. While larger beads begin to appear <2000 years ago, most beads in our study remained smaller. In contrast, eastern African OES bead diameters are consistently larger over the last 10,000 years and show no appreciable size change with the introduction of herding. Notably, larger beads thought to be associated with herders in southern Africa fall within the range of eastern African beads, indicating a potential connection between these regions in the Late Holocene consistent with genetic findings. Regional differences in bead size are subtle, on the order of millimeters, yet offer a potentially important line of evidence for investigating the spread of herding in sub-Saharan Africa. In order to understand the meaning of these changes, we encourage additional studies of OES bead assemblages and urge researchers to report individual bead diameters, rather than averages by level.
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Affiliation(s)
- Jennifer M. Miller
- Department of Anthropology, University of Alberta, Edmonton, Canada
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
| | - Elizabeth A. Sawchuk
- Department of Archaeology, Max Planck Institute for the Science of Human History, Jena, Germany
- Department of Anthropology, Stony Brook University, New York, United States of America
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132
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Gokcumen O. Archaic hominin introgression into modern human genomes. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 171 Suppl 70:60-73. [PMID: 31702050 DOI: 10.1002/ajpa.23951] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/04/2019] [Accepted: 10/08/2019] [Indexed: 01/01/2023]
Abstract
Ancient genomes from multiple Neanderthal and the Denisovan individuals, along with DNA sequence data from diverse contemporary human populations strongly support the prevalence of gene flow among different hominins. Recent studies now provide evidence for multiple gene flow events that leave genetic signatures in extant and ancient human populations. These events include older gene flow from an unknown hominin in Africa predating out-of-Africa migrations, and in the last 50,000-100,000 years, multiple gene flow events from Neanderthals into ancestral Eurasian human populations, and at least three distinct introgression events from a lineage close to Denisovans into ancestors of extant Southeast Asian and Oceanic populations. Some of these introgression events may have happened as late as 20,000 years before present and reshaped the way in which we think about human evolution. In this review, I aim to answer anthropologically relevant questions with regard to recent research on ancient hominin introgression in the human lineage. How have genomic data from archaic hominins changed our view of human evolution? Is there any doubt about whether introgression from ancient hominins to the ancestors of present-day humans occurred? What is the current view of human evolutionary history from the genomics perspective? What is the impact of introgression on human phenotypes?
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Affiliation(s)
- Omer Gokcumen
- Department of Biological Sciences, North Campus, University at Buffalo, Buffalo, New York
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133
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Fortes‐Lima C, Mtetwa E, Schlebusch C. Unraveling African diversity from a cross-disciplinary perspective. Evol Anthropol 2019; 28:288-292. [PMID: 31617954 PMCID: PMC6916536 DOI: 10.1002/evan.21801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 09/11/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Cesar Fortes‐Lima
- Human Evolution, Department of Organismal BiologyEvolutionary Biology Centre, Uppsala UniversityUppsalaSweden
| | - Ezekia Mtetwa
- Human Evolution, Department of Organismal BiologyEvolutionary Biology Centre, Uppsala UniversityUppsalaSweden
| | - Carina Schlebusch
- Human Evolution, Department of Organismal BiologyEvolutionary Biology Centre, Uppsala UniversityUppsalaSweden
- Palaeo‐Research InstituteUniversity of JohannesburgJohannesburgSouth Africa
- SciLifeLabUppsalaSweden
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134
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Chan EKF, Timmermann A, Baldi BF, Moore AE, Lyons RJ, Lee SS, Kalsbeek AMF, Petersen DC, Rautenbach H, Förtsch HEA, Bornman MSR, Hayes VM. Human origins in a southern African palaeo-wetland and first migrations. Nature 2019; 575:185-189. [PMID: 31659339 DOI: 10.1038/s41586-019-1714-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 09/24/2019] [Indexed: 01/17/2023]
Abstract
Anatomically modern humans originated in Africa around 200 thousand years ago (ka)1-4. Although some of the oldest skeletal remains suggest an eastern African origin2, southern Africa is home to contemporary populations that represent the earliest branch of human genetic phylogeny5,6. Here we generate, to our knowledge, the largest resource for the poorly represented and deepest-rooting maternal L0 mitochondrial DNA branch (198 new mitogenomes for a total of 1,217 mitogenomes) from contemporary southern Africans and show the geographical isolation of L0d1'2, L0k and L0g KhoeSan descendants south of the Zambezi river in Africa. By establishing mitogenomic timelines, frequencies and dispersals, we show that the L0 lineage emerged within the residual Makgadikgadi-Okavango palaeo-wetland of southern Africa7, approximately 200 ka (95% confidence interval, 240-165 ka). Genetic divergence points to a sustained 70,000-year-long existence of the L0 lineage before an out-of-homeland northeast-southwest dispersal between 130 and 110 ka. Palaeo-climate proxy and model data suggest that increased humidity opened green corridors, first to the northeast then to the southwest. Subsequent drying of the homeland corresponds to a sustained effective population size (L0k), whereas wet-dry cycles and probable adaptation to marine foraging allowed the southwestern migrants to achieve population growth (L0d1'2), as supported by extensive south-coastal archaeological evidence8-10. Taken together, we propose a southern African origin of anatomically modern humans with sustained homeland occupation before the first migrations of people that appear to have been driven by regional climate changes.
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Affiliation(s)
- Eva K F Chan
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Axel Timmermann
- Center for Climate Physics, Institute for Basic Science, Busan, South Korea. .,Pusan National University, Busan, South Korea.
| | - Benedetta F Baldi
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Andy E Moore
- Department of Geology, Rhodes University, Grahamstown, South Africa
| | - Ruth J Lyons
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Sun-Seon Lee
- Center for Climate Physics, Institute for Basic Science, Busan, South Korea.,Pusan National University, Busan, South Korea
| | - Anton M F Kalsbeek
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | - Desiree C Petersen
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,The Centre for Proteomic and Genomic Research, Cape Town, South Africa
| | - Hannes Rautenbach
- Climate Change and Variability, South African Weather Service, Pretoria, South Africa.,School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa.,Akademia, Johannesburg, South Africa
| | | | - M S Riana Bornman
- School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa
| | - Vanessa M Hayes
- Genomics and Epigenetics Division, Garvan Institute of Medical Research, Sydney, New South Wales, Australia. .,St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia. .,School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa. .,Faculty of Health Sciences, University of Limpopo, Sovenga, South Africa. .,Central Clinical School, University of Sydney, Sydney, New South Wales, Australia.
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135
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Thami PK, Chimusa ER. Population Structure and Implications on the Genetic Architecture of HIV-1 Phenotypes Within Southern Africa. Front Genet 2019; 10:905. [PMID: 31611910 PMCID: PMC6777512 DOI: 10.3389/fgene.2019.00905] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 08/26/2019] [Indexed: 12/12/2022] Open
Abstract
The interesting history of Southern Africa has put the region in the spotlight for population medical genetics. Major events including the Bantu expansion and European colonialism have imprinted unique genetic signatures within autochthonous populations of Southern Africa, this resulting in differential allele frequencies across the region. This genetic structure has potential implications on susceptibility and resistance to infectious diseases such as human immunodeficiency virus (HIV) infection. Southern Africa is the region affected worst by HIV. Here, we discuss advances made in genome-wide association studies (GWAS) of HIV-1 in the past 12 years and dissect population diversity within Southern Africa. Our findings accentuate that a plethora of factors such as migration, language and culture, admixture, and natural selection have profiled the genetics of the people of Southern Africa. Genetic structure has been observed among the Khoe-San, among Bantu speakers, and between the Khoe-San, Coloureds, and Bantu speakers. Moreover, Southern African populations have complex admixture scenarios. Few GWAS of HIV-1 have been conducted in Southern Africa, with only one of these identifying two novel variants (HCG22rs2535307 and CCNG1kgp22385164) significantly associated with HIV-1 acquisition and progression. High genetic diversity, multi-wave genetic mixture and low linkage disequilibrium of Southern African populations constitute a challenge in identifying genetic variants with modest risk or protective effect against HIV-1. We therefore posit that it is compelling to assess genome-wide contribution of ancestry to HIV-1 infection. We further suggest robust methods that can pin-point population-specific variants that may contribute to the control of HIV-1 in Southern Africa.
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Affiliation(s)
- Prisca K Thami
- Division of Human Genetics, Department of Pathology, University of Cape Town, Cape Town, South Africa.,Research Laboratory, Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Emile R Chimusa
- Division of Human Genetics, Department of Pathology, University of Cape Town, Cape Town, South Africa
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136
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Refoyo-Martínez A, da Fonseca RR, Halldórsdóttir K, Árnason E, Mailund T, Racimo F. Identifying loci under positive selection in complex population histories. Genome Res 2019; 29:1506-1520. [PMID: 31362936 PMCID: PMC6724678 DOI: 10.1101/gr.246777.118] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 07/23/2019] [Indexed: 12/24/2022]
Abstract
Detailed modeling of a species' history is of prime importance for understanding how natural selection operates over time. Most methods designed to detect positive selection along sequenced genomes, however, use simplified representations of past histories as null models of genetic drift. Here, we present the first method that can detect signatures of strong local adaptation across the genome using arbitrarily complex admixture graphs, which are typically used to describe the history of past divergence and admixture events among any number of populations. The method-called graph-aware retrieval of selective sweeps (GRoSS)-has good power to detect loci in the genome with strong evidence for past selective sweeps and can also identify which branch of the graph was most affected by the sweep. As evidence of its utility, we apply the method to bovine, codfish, and human population genomic data containing panels of multiple populations related in complex ways. We find new candidate genes for important adaptive functions, including immunity and metabolism in understudied human populations, as well as muscle mass, milk production, and tameness in specific bovine breeds. We are also able to pinpoint the emergence of large regions of differentiation owing to inversions in the history of Atlantic codfish.
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Affiliation(s)
- Alba Refoyo-Martínez
- Lundbeck GeoGenetics Centre, The Globe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1350, Denmark
| | - Rute R da Fonseca
- Centre for Macroecology, Evolution and Climate, The Globe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Copehnagen 2100, Denmark
| | - Katrín Halldórsdóttir
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík 107, Iceland
| | - Einar Árnason
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík 107, Iceland
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Thomas Mailund
- Bioinformatics Research Centre, Aarhus University, Aarhus 8000, Denmark
| | - Fernando Racimo
- Lundbeck GeoGenetics Centre, The Globe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1350, Denmark
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137
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Harney É, Nayak A, Patterson N, Joglekar P, Mushrif-Tripathy V, Mallick S, Rohland N, Sedig J, Adamski N, Bernardos R, Broomandkhoshbacht N, Culleton BJ, Ferry M, Harper TK, Michel M, Oppenheimer J, Stewardson K, Zhang Z, Harashawaradhana, Bartwal MS, Kumar S, Diyundi SC, Roberts P, Boivin N, Kennett DJ, Thangaraj K, Reich D, Rai N. Ancient DNA from the skeletons of Roopkund Lake reveals Mediterranean migrants in India. Nat Commun 2019; 10:3670. [PMID: 31431628 PMCID: PMC6702210 DOI: 10.1038/s41467-019-11357-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/26/2019] [Indexed: 11/24/2022] Open
Abstract
Situated at over 5,000 meters above sea level in the Himalayan Mountains, Roopkund Lake is home to the scattered skeletal remains of several hundred individuals of unknown origin. We report genome-wide ancient DNA for 38 skeletons from Roopkund Lake, and find that they cluster into three distinct groups. A group of 23 individuals have ancestry that falls within the range of variation of present-day South Asians. A further 14 have ancestry typical of the eastern Mediterranean. We also identify one individual with Southeast Asian-related ancestry. Radiocarbon dating indicates that these remains were not deposited simultaneously. Instead, all of the individuals with South Asian-related ancestry date to ~800 CE (but with evidence of being deposited in more than one event), while all other individuals date to ~1800 CE. These differences are also reflected in stable isotope measurements, which reveal a distinct dietary profile for the two main groups. Remains of several hundred humans are scattered around Roopkund Lake, situated over 5,000 meters above sea level in the Himalayan Mountains. Here the authors analyze genome-wide data from 38 skeletons and find 3 clusters with different ancestries and dates, showing the people were desposited in multiple catastrophic events.
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Affiliation(s)
- Éadaoin Harney
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA.,The Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Cambridge, MA, 02138, USA.,Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Ayushi Nayak
- Department of Archaeology, Max Planck Institute for the Science of Human History, D-07745, Jena, Germany
| | - Nick Patterson
- Broad Institute of Harvard and MIT, Cambridge, MA, 02142 USA, USA.,Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, 02138, USA
| | | | | | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, MA, 02142 USA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Jakob Sedig
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Rebecca Bernardos
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Brendan J Culleton
- Institutes of Energy and the Environment, The Pennsylvania State University, University Park, PA, 16802, USA.,Department of Anthropology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Matthew Ferry
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Thomas K Harper
- Department of Anthropology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Megan Michel
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA.,The Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, D-07745, Jena, Germany
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Zhao Zhang
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Harashawaradhana
- Anthropological Survey of India, North West Regional Centre, Dehradun, 248195, India
| | | | - Sachin Kumar
- CSIR Centre for Cellular and Molecular Biology, Hyderabad, Telangana, 500007, India.,Birbal Sahni Institute of Palaeosciences, Lucknow, Uttar Pradesh, 226007, India
| | | | - Patrick Roberts
- Department of Archaeology, Max Planck Institute for the Science of Human History, D-07745, Jena, Germany
| | - Nicole Boivin
- Department of Archaeology, Max Planck Institute for the Science of Human History, D-07745, Jena, Germany
| | - Douglas J Kennett
- Department of Anthropology, University of California, Santa Barbara, CA, 93106, USA
| | - Kumarasamy Thangaraj
- CSIR Centre for Cellular and Molecular Biology, Hyderabad, Telangana, 500007, India
| | - David Reich
- The Max Planck-Harvard Research Center for the Archaeoscience of the Ancient Mediterranean, Cambridge, MA, 02138, USA. .,Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA. .,Broad Institute of Harvard and MIT, Cambridge, MA, 02142 USA, USA. .,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, 02115, USA.
| | - Niraj Rai
- CSIR Centre for Cellular and Molecular Biology, Hyderabad, Telangana, 500007, India.,Birbal Sahni Institute of Palaeosciences, Lucknow, Uttar Pradesh, 226007, India
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138
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Olalde I, Mallick S, Patterson N, Rohland N, Villalba-Mouco V, Silva M, Dulias K, Edwards CJ, Gandini F, Pala M, Soares P, Ferrando-Bernal M, Adamski N, Broomandkhoshbacht N, Cheronet O, Culleton BJ, Fernandes D, Lawson AM, Mah M, Oppenheimer J, Stewardson K, Zhang Z, Jiménez Arenas JM, Toro Moyano IJ, Salazar-García DC, Castanyer P, Santos M, Tremoleda J, Lozano M, García Borja P, Fernández-Eraso J, Mujika-Alustiza JA, Barroso C, Bermúdez FJ, Viguera Mínguez E, Burch J, Coromina N, Vivó D, Cebrià A, Fullola JM, García-Puchol O, Morales JI, Oms FX, Majó T, Vergès JM, Díaz-Carvajal A, Ollich-Castanyer I, López-Cachero FJ, Silva AM, Alonso-Fernández C, Delibes de Castro G, Jiménez Echevarría J, Moreno-Márquez A, Pascual Berlanga G, Ramos-García P, Ramos-Muñoz J, Vijande Vila E, Aguilella Arzo G, Esparza Arroyo Á, Lillios KT, Mack J, Velasco-Vázquez J, Waterman A, Benítez de Lugo Enrich L, Benito Sánchez M, Agustí B, Codina F, de Prado G, Estalrrich A, Fernández Flores Á, Finlayson C, Finlayson G, Finlayson S, Giles-Guzmán F, Rosas A, Barciela González V, García Atiénzar G, Hernández Pérez MS, Llanos A, Carrión Marco Y, Collado Beneyto I, López-Serrano D, Sanz Tormo M, Valera AC, Blasco C, Liesau C, Ríos P, Daura J, de Pedro Michó MJ, Diez-Castillo AA, Flores Fernández R, Francès Farré J, Garrido-Pena R, Gonçalves VS, Guerra-Doce E, Herrero-Corral AM, Juan-Cabanilles J, López-Reyes D, McClure SB, Merino Pérez M, Oliver Foix A, Sanz Borràs M, Sousa AC, Vidal Encinas JM, Kennett DJ, Richards MB, Werner Alt K, Haak W, Pinhasi R, Lalueza-Fox C, Reich D. The genomic history of the Iberian Peninsula over the past 8000 years. Science 2019; 363:1230-1234. [PMID: 30872528 DOI: 10.1126/science.aav4040] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/30/2019] [Indexed: 12/18/2022]
Abstract
We assembled genome-wide data from 271 ancient Iberians, of whom 176 are from the largely unsampled period after 2000 BCE, thereby providing a high-resolution time transect of the Iberian Peninsula. We document high genetic substructure between northwestern and southeastern hunter-gatherers before the spread of farming. We reveal sporadic contacts between Iberia and North Africa by ~2500 BCE and, by ~2000 BCE, the replacement of 40% of Iberia's ancestry and nearly 100% of its Y-chromosomes by people with Steppe ancestry. We show that, in the Iron Age, Steppe ancestry had spread not only into Indo-European-speaking regions but also into non-Indo-European-speaking ones, and we reveal that present-day Basques are best described as a typical Iron Age population without the admixture events that later affected the rest of Iberia. Additionally, we document how, beginning at least in the Roman period, the ancestry of the peninsula was transformed by gene flow from North Africa and the eastern Mediterranean.
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Affiliation(s)
- Iñigo Olalde
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
| | - Swapan Mallick
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | | | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Vanessa Villalba-Mouco
- Max Planck Institute for the Science of Human History, Jena, Germany.,Departamento de Ciencias de la Antigüedad, Grupo Primeros Pobladores del Valle del Ebro (PPVE), Instituto de Investigación en Ciencias Ambientales (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Marina Silva
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Katharina Dulias
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Ceiridwen J Edwards
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Francesca Gandini
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Maria Pala
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Pedro Soares
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal
| | | | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Olivia Cheronet
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Brendan J Culleton
- Department of Anthropology and Institutes of Energy and the Environment, The Pennsylvania State University, University Park, PA, USA
| | - Daniel Fernandes
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria.,Research Center for Anthropology and Health, Department of Life Science, University of Coimbra, Coimbra, Portugal
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Zhao Zhang
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Juan Manuel Jiménez Arenas
- Departamento de Prehistoria y Arqueología, Universidad de Granada, Granada, Spain.,Instituto Universitario de la Paz y los Conflictos, Universidad de Granada, Granada, Spain.,Department of Anthropology - Anthropologisches Institut and Museum, Universität Zürich, Zürich, Switzerland
| | | | - Domingo C Salazar-García
- Departamento de Geografía, Prehistoria y Arqueología, Grupo de Investigación en Prehistoria, (UPV-EHU)/IKERBASQUE-Basque Foundation for Science, Vitoria, Spain
| | - Pere Castanyer
- Museu d'Arqueologia de Catalunya-Empúries, L'Escala, Spain
| | - Marta Santos
- Museu d'Arqueologia de Catalunya-Empúries, L'Escala, Spain
| | | | - Marina Lozano
- Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Tarragona, Spain.,Àrea de Prehistòria, Universitat Rovira i Virgili (URV), Tarragona, Spain
| | - Pablo García Borja
- Departamento de Prehistoria e Historia Antigua, Universidad Nacional de Educación a Distancia, Valencia, Spain
| | - Javier Fernández-Eraso
- Departamento de Geografía, Prehistoria y Arqueología, Universidad del País Vasco, Vitoria, Spain
| | | | - Cecilio Barroso
- Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH), Lucena, Spain
| | - Francisco J Bermúdez
- Fundación Instituto de Investigación de Prehistoria y Evolución Humana (FIPEH), Lucena, Spain
| | | | - Josep Burch
- Institut de Recerca Històrica, Universitat de Girona, Girona, Spain
| | - Neus Coromina
- Institut de Recerca Històrica, Universitat de Girona, Girona, Spain
| | - David Vivó
- Institut de Recerca Històrica, Universitat de Girona, Girona, Spain
| | - Artur Cebrià
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | - Josep Maria Fullola
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | - Oreto García-Puchol
- PREMEDOC Research Group, Departament de Prehistòria, Arqueologia i Historia Antiga, Universitat de València, València, Spain
| | - Juan Ignacio Morales
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | - F Xavier Oms
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | - Tona Majó
- Archaeom. Departament de Prehistòria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Josep Maria Vergès
- Institut Català de Paleoecologia Humana i Evolució Social (IPHES), Tarragona, Spain.,Àrea de Prehistòria, Universitat Rovira i Virgili (URV), Tarragona, Spain
| | | | | | - F Javier López-Cachero
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | - Ana Maria Silva
- Laboratory of Prehistory, Research Center for Anthropology and Health, Department of Life Sciences, University of Coimbra, Coimbra, Portugal.,UNIARQ, Faculdade de Letras, Universidade de Lisboa, Lisboa, Portugal.,CEF, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | | | - Germán Delibes de Castro
- Departamento de Prehistoria, Facultad de Filosofía y Letras, Universidad de Valladolid, Valladolid, Spain
| | | | - Adolfo Moreno-Márquez
- Departamento de Historia, Geografía y Filosofía, Universidad de Cádiz, Cádiz, Spain.,Departamento de Geografía, Historia y Humanidades, Universidad de Almería, Almería, Spain
| | | | | | - José Ramos-Muñoz
- Departamento de Historia, Geografía y Filosofía, Universidad de Cádiz, Cádiz, Spain
| | - Eduardo Vijande Vila
- Departamento de Historia, Geografía y Filosofía, Universidad de Cádiz, Cádiz, Spain
| | - Gustau Aguilella Arzo
- Servicio de Investigaciones Arqueológicas y Prehistóricas de la Diputación de Castellón, Castelló de la Plana, Spain
| | - Ángel Esparza Arroyo
- GIR PrehUSAL, Departamento de Prehistoria, Historia Antigua y Arqueología, Universidad de Salamanca, Salamanca, Spain
| | - Katina T Lillios
- Department of Anthropology, University of Iowa, Iowa City, IA, USA
| | - Jennifer Mack
- Office of the State Archaeologist, University of Iowa, Iowa City, IA, USA
| | - Javier Velasco-Vázquez
- Departamento de Ciencias Históricas, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | | | - Luis Benítez de Lugo Enrich
- Departamento de Prehistoria y Arqueología, Universidad Autónoma de Madrid, Madrid, Spain.,Departamento de Prehistoria y Arqueología, Universidad Nacional de Educación a Distancia, Madrid, Spain
| | - María Benito Sánchez
- Departamento de Medicina Legal, Psiquiatría y Anatomía Patológica, Universidad Complutense de Madrid, Madrid, Spain
| | - Bibiana Agustí
- INSITU S.C.P., Centelles, Spain.,Museu d'Arqueologia de Catalunya-Ullastret, Ullastret, Spain
| | - Ferran Codina
- Museu d'Arqueologia de Catalunya-Ullastret, Ullastret, Spain
| | | | - Almudena Estalrrich
- Instituto Internacional de Investigaciones Prehistóricas de Cantabria IIIPC (Universidad de Cantabria-Gobierno de Cantabria-Santander), Santander, Spain
| | | | - Clive Finlayson
- The Gibraltar National Museum, Gibraltar.,Department of Anthropology, University of Toronto, Toronto, ON, Canada.,School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK.,Institute of Life and Earth Sciences, University of Gibraltar, Gibraltar
| | - Geraldine Finlayson
- The Gibraltar National Museum, Gibraltar.,School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK.,Institute of Life and Earth Sciences, University of Gibraltar, Gibraltar
| | - Stewart Finlayson
- The Gibraltar National Museum, Gibraltar.,Department of Life Sciences, Anglia Ruskin University, Cambridge, UK
| | | | - Antonio Rosas
- Paleoanthropology Group, Department of Paleobiology, Museo Nacional de Ciencias Naturales (MNCN)-Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Virginia Barciela González
- Departamento de Prehistoria, Arqueología e Historia Antigua, Facultad de Filosofía y Letras, Universidad de Alicante, San Vicente del Raspeig, Spain.,Instituto Universitario de Investigación en Arqueología y Patrimonio Histórico (INAPH), San Vicente del Raspeig, Spain
| | - Gabriel García Atiénzar
- Departamento de Prehistoria, Arqueología e Historia Antigua, Facultad de Filosofía y Letras, Universidad de Alicante, San Vicente del Raspeig, Spain.,Instituto Universitario de Investigación en Arqueología y Patrimonio Histórico (INAPH), San Vicente del Raspeig, Spain
| | - Mauro S Hernández Pérez
- Departamento de Prehistoria, Arqueología e Historia Antigua, Facultad de Filosofía y Letras, Universidad de Alicante, San Vicente del Raspeig, Spain.,Instituto Universitario de Investigación en Arqueología y Patrimonio Histórico (INAPH), San Vicente del Raspeig, Spain
| | | | - Yolanda Carrión Marco
- Departament de Prehistòria, Arqueologia i Historia Antiga, Universitat de València, València, Spain
| | | | | | | | | | - Concepción Blasco
- Departamento de Prehistoria y Arqueología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Corina Liesau
- Departamento de Prehistoria y Arqueología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Patricia Ríos
- Departamento de Prehistoria y Arqueología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Joan Daura
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | | | - Agustín A Diez-Castillo
- GRAM Research Group, Departament de Prehistòria, Arqueologia i Historia Antiga, Universitat de València, València, Spain
| | | | | | - Rafael Garrido-Pena
- Departamento de Prehistoria y Arqueología, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Elisa Guerra-Doce
- Departamento de Prehistoria, Facultad de Filosofía y Letras, Universidad de Valladolid, Valladolid, Spain
| | | | | | | | - Sarah B McClure
- Department of Anthropology, University of California, Santa Barbara, CA, USA
| | - Marta Merino Pérez
- Unitat d'Antropologia Física, Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Arturo Oliver Foix
- Servicio de Investigaciones Arqueológicas y Prehistóricas de la Diputación de Castellón, Castelló de la Plana, Spain
| | - Montserrat Sanz Borràs
- SERP, Departament d'Història i Arqueologia, Facultat de Geografia i Història, Universitat de Barcelona, Barcelona, Spain
| | | | | | - Douglas J Kennett
- Department of Anthropology and Institutes of Energy and the Environment, The Pennsylvania State University, University Park, PA, USA.,Department of Anthropology, University of California, Santa Barbara, CA, USA
| | - Martin B Richards
- Department of Biological and Geographical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| | - Kurt Werner Alt
- Center of Natural and Cultural Human History, Danube Private University, Krems, Austria.,Department of Biomedical Engineering and Integrative Prehistory and Archaeological Science, Basel University, Basel, Switzerland
| | - Wolfgang Haak
- Max Planck Institute for the Science of Human History, Jena, Germany.,School of Biological Sciences, University of Adelaide, Adelaide, Australia
| | - Ron Pinhasi
- Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria
| | - Carles Lalueza-Fox
- Institute of Evolutionary Biology, CSIC-Universitat Pompeu Fabra, Barcelona, Spain.
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA, USA. .,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
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139
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Haber M, Jones AL, Connell BA, Asan, Arciero E, Yang H, Thomas MG, Xue Y, Tyler-Smith C. A Rare Deep-Rooting D0 African Y-Chromosomal Haplogroup and Its Implications for the Expansion of Modern Humans Out of Africa. Genetics 2019; 212:1421-1428. [PMID: 31196864 PMCID: PMC6707464 DOI: 10.1534/genetics.119.302368] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/10/2019] [Indexed: 12/31/2022] Open
Abstract
Present-day humans outside Africa descend mainly from a single expansion out ∼50,000-70,000 years ago, but many details of this expansion remain unclear, including the history of the male-specific Y chromosome at this time. Here, we reinvestigate a rare deep-rooting African Y-chromosomal lineage by sequencing the whole genomes of three Nigerian men described in 2003 as carrying haplogroup DE* Y chromosomes, and analyzing them in the context of a calibrated worldwide Y-chromosomal phylogeny. We confirm that these three chromosomes do represent a deep-rooting DE lineage, branching close to the DE bifurcation, but place them on the D branch as an outgroup to all other known D chromosomes, and designate the new lineage D0. We consider three models for the expansion of Y lineages out of Africa ∼50,000-100,000 years ago, incorporating migration back to Africa where necessary to explain present-day Y-lineage distributions. Considering both the Y-chromosomal phylogenetic structure incorporating the D0 lineage, and published evidence for modern humans outside Africa, the most favored model involves an origin of the DE lineage within Africa with D0 and E remaining there, and migration out of the three lineages (C, D, and FT) that now form the vast majority of non-African Y chromosomes. The exit took place 50,300-81,000 years ago (latest date for FT lineage expansion outside Africa - earliest date for the D/D0 lineage split inside Africa), and most likely 50,300-59,400 years ago (considering Neanderthal admixture). This work resolves a long-running debate about Y-chromosomal out-of-Africa/back-to-Africa migrations, and provides insights into the out-of-Africa expansion more generally.
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Affiliation(s)
- Marc Haber
- The Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
| | | | - Bruce A Connell
- Glendon College, York University, Toronto, Ontario M4N 3N6, Canada
| | - Asan
- BGI-Shenzhen, Shenzhen 518083, China
| | - Elena Arciero
- The Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen 518083, China
- James D. Watson Institute of Genome Science, 310008 Hangzhou, China
| | - Mark G Thomas
- Research Department of Genetics, Evolution and Environment, University College London, WC1E 6BT, UK, and University College London (UCL) Genetics Institute, University College London, WC1E 6BT, UK
| | - Yali Xue
- The Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
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140
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Pfeiffer S, Cameron ME, Sealy J, Beresheim AC. Diet and adult age-at-death among mobile foragers: A synthesis of bioarcheological methods. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 170:131-147. [PMID: 31265761 DOI: 10.1002/ajpa.23883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/04/2019] [Accepted: 06/07/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVES The research explores whether the combined study of cortical bone histology, bone morphology, and dietary stable isotopes can expand insights into past human health and adaptations, particularly dietary sufficiency and life span. MATERIALS AND METHODS Midthoracic rib cortices from 54 South African Late Holocene adult skeletons (28 M, 24 F, two sex undetermined) are assessed by transmitted-light microscopy for cross-sectional area measurements, osteon area (On.Ar), osteon population density, and presence/absence of secondary osteon variants. Values for δ13 Cbone collagen , δ15 Nbone collagen , 14 C dates, Southwestern and Southern Cape geographic regions, body size measures, estimated ages-at-death from both morphological and histological methods are integrated into analyses, which include Spearman correlations, χ2 tests and Kruskal-Wallis ANOVAs. RESULTS There is reduced On.Ar variability with higher δ15 N (r = -.41, p = .005); rib %cortical area and δ15 N are negatively correlated in the Southern Cape group (r = -.60, p = .03). Osteon variants are more common in older adults; histological ages at death are significantly older than those determined from gross morphology. DISCUSSION We found bone tissue relationships with measures of diet composition, but indicators of dietary adequacy remain elusive. Relationships of tissue quality and isotopes suggest that some Southern Cape adults lived long lives. Osteon variants are associated with age-at-death; some association with diet remains possible. Gross morphological methods appear to underestimate adult ages-at-death, at least among small-bodied adults.
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Affiliation(s)
- Susan Pfeiffer
- Anthropology, University of Toronto, Toronto, Ontario, Canada.,Department of Archaeology, University of Cape Town, Cape Town, South Africa
| | | | - Judith Sealy
- Department of Archaeology, University of Cape Town, Cape Town, South Africa
| | - Amy C Beresheim
- Anthropology, University of Toronto, Toronto, Ontario, Canada.,Department of Anatomy, Des Moines University, Des Moines, Iowa
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141
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Fernandes V, Brucato N, Ferreira JC, Pedro N, Cavadas B, Ricaut FX, Alshamali F, Pereira L. Genome-Wide Characterization of Arabian Peninsula Populations: Shedding Light on the History of a Fundamental Bridge between Continents. Mol Biol Evol 2019; 36:575-586. [PMID: 30649405 DOI: 10.1093/molbev/msz005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The Arabian Peninsula (AP) was an important crossroad between Africa, Asia, and Europe, being the cradle of the structure defining these main human population groups, and a continuing path for their admixture. The screening of 741,000 variants in 420 Arabians and 80 Iranians allowed us to quantify the dominant sub-Saharan African admixture in the west of the peninsula, whereas South Asian and Levantine/European influence was stronger in the east, leading to a rift between western and eastern sides of the Peninsula. Dating of the admixture events indicated that Indian Ocean slave trade and Islamization periods were important moments in the genetic makeup of the region. The western-eastern axis was also observable in terms of positive selection of diversity conferring lactose tolerance, with the West AP developing local adaptation and the East AP acquiring the derived allele selected in European populations and existing in South Asia. African selected malaria resistance through the DARC gene was enriched in all Arabian genomes, especially in the western part. Clear European influences associated with skin and eye color were equally frequent across the Peninsula.
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Affiliation(s)
- Veronica Fernandes
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Nicolas Brucato
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université de Toulouse Midi-Pyrénées, CNRS, IRD, UPS. 118 route de Narbonne, Bat 4R1, 31062 Toulouse cedex 9, France
| | - Joana C Ferreira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Nicole Pedro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Bruno Cavadas
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - François-Xavier Ricaut
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), Université de Toulouse Midi-Pyrénées, CNRS, IRD, UPS. 118 route de Narbonne, Bat 4R1, 31062 Toulouse cedex 9, France
| | - Farida Alshamali
- Department of Forensic Sciences and Criminology, Dubai Police General Headquarters, Dubai, United Arab Emirates
| | - Luisa Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto, Porto, Portugal
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142
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Zhang J, Parkinson J. PopNetD3-A Network-Based Web Resource for Exploring Population Structure. Genome Biol Evol 2019; 11:1730-1735. [PMID: 31095319 PMCID: PMC6668580 DOI: 10.1093/gbe/evz100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2019] [Indexed: 11/14/2022] Open
Abstract
We present PopNetD3, a web tool that provides an integrated approach for the network-based visualization of population structure based on the PopNet clustering framework. Users first submit a tab-delimited file that defines diversity of SNPs across the genome which is subsequently processed by the PopNet backend to define patterns of conservation at the chromosome level. The resulting population structure is visualized through a dedicated D3-based tool, allowing users to interactively examine chromosomal regions predicted to share ancestry. We illustrate the capabilities of PopNetD3 through an analysis of 16 strains of Neisseria gonorrhoeae. PopNetD3 is capable of processing population data sets consisting of hundreds of individuals and is publicly available online at: http://compsysbio.org/popnetd3 Last Accessed: May 17, 2019.
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Affiliation(s)
- Javi Zhang
- Program in Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Ontario, Canada
| | - John Parkinson
- Program in Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, Toronto, Ontario, Canada
- Department of Biochemistry, University of Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Ontario, Canada
- Department of Computer Science, University of Toronto, Ontario, Canada
- Corresponding author: E-mail:
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143
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Affiliation(s)
- Serena Tucci
- Lewis-Sigler Institute for Integrative Genomics, Carl Icahn Laboratory, Princeton University, South Drive, Princeton, NJ, 08544, USA
| | - Joshua M Akey
- Lewis-Sigler Institute for Integrative Genomics, Carl Icahn Laboratory, Princeton University, South Drive, Princeton, NJ, 08544, USA.
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144
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Klein RG. Population structure and the evolution of
Homo sapiens
in Africa. Evol Anthropol 2019; 28:179-188. [DOI: 10.1002/evan.21788] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 01/01/2023]
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145
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Abstract
Risk of disease is multifactorial and can be shaped by socio-economic, demographic, cultural, environmental and genetic factors. Our understanding of the genetic determinants of disease risk has greatly advanced with the advent of genome-wide association studies (GWAS), which detect associations between genetic variants and complex traits or diseases by comparing populations of cases and controls. However, much of this discovery has occurred through GWAS of individuals of European ancestry, with limited representation of other populations, including from Africa, The Americas, Asia and Oceania. Population demography, genetic drift and adaptation to environments over thousands of years have led globally to the diversification of populations. This global genomic diversity can provide new opportunities for discovery and translation into therapies, as well as a better understanding of population disease risk. Large-scale multi-ethnic and representative biobanks and population health resources provide unprecedented opportunities to understand the genetic determinants of disease on a global scale.
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146
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Kuhlwilm M, Boeckx C. A catalog of single nucleotide changes distinguishing modern humans from archaic hominins. Sci Rep 2019; 9:8463. [PMID: 31186485 PMCID: PMC6560109 DOI: 10.1038/s41598-019-44877-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/24/2019] [Indexed: 01/06/2023] Open
Abstract
Throughout the past decade, studying ancient genomes has provided unique insights into human prehistory, and differences between modern humans and other branches like Neanderthals can enrich our understanding of the molecular basis of unique modern human traits. Modern human variation and the interactions between different hominin lineages are now well studied, making it reasonable to go beyond fixed genetic changes and explore changes that are observed at high frequency in present-day humans. Here, we identify 571 genes with non-synonymous changes at high frequency. We suggest that molecular mechanisms in cell division and networks affecting cellular features of neurons were prominently modified by these changes. Complex phenotypes in brain growth trajectory and cognitive traits are likely influenced by these networks and other non-coding changes presented here. We propose that at least some of these changes contributed to uniquely human traits, and should be prioritized for experimental validation.
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Affiliation(s)
- Martin Kuhlwilm
- Institut de Biologia Evolutiva, (CSIC-Universitat Pompeu Fabra), PRBB, Barcelona, Spain
| | - Cedric Boeckx
- ICREA, Barcelona, Spain.
- University of Barcelona, Barcelona, Spain.
- UB Institute of Complex Systems, Barcelona, Spain.
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147
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Szpak M, Xue Y, Ayub Q, Tyler‐Smith C. How well do we understand the basis of classic selective sweeps in humans? FEBS Lett 2019; 593:1431-1448. [DOI: 10.1002/1873-3468.13447] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/29/2019] [Accepted: 05/17/2019] [Indexed: 12/14/2022]
Affiliation(s)
| | - Yali Xue
- The Wellcome Sanger Institute Hinxton UK
| | - Qasim Ayub
- School of Science Monash University Malaysia Bandar Sunway Malaysia
- Tropical Medicine and Biology Multidisciplinary Platform Monash University Malaysia Genomics Facility Bandar Sunway Malaysia
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148
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Ragsdale AP, Gravel S. Models of archaic admixture and recent history from two-locus statistics. PLoS Genet 2019; 15:e1008204. [PMID: 31181058 PMCID: PMC6586359 DOI: 10.1371/journal.pgen.1008204] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 06/20/2019] [Accepted: 05/17/2019] [Indexed: 11/18/2022] Open
Abstract
We learn about population history and underlying evolutionary biology through patterns of genetic polymorphism. Many approaches to reconstruct evolutionary histories focus on a limited number of informative statistics describing distributions of allele frequencies or patterns of linkage disequilibrium. We show that many commonly used statistics are part of a broad family of two-locus moments whose expectation can be computed jointly and rapidly under a wide range of scenarios, including complex multi-population demographies with continuous migration and admixture events. A full inspection of these statistics reveals that widely used models of human history fail to predict simple patterns of linkage disequilibrium. To jointly capture the information contained in classical and novel statistics, we implemented a tractable likelihood-based inference framework for demographic history. Using this approach, we show that human evolutionary models that include archaic admixture in Africa, Asia, and Europe provide a much better description of patterns of genetic diversity across the human genome. We estimate that an unidentified, deeply diverged population admixed with modern humans within Africa both before and after the split of African and Eurasian populations, contributing 4 - 8% genetic ancestry to individuals in world-wide populations.
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Affiliation(s)
- Aaron P Ragsdale
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Simon Gravel
- Department of Human Genetics, McGill University, Montreal, QC, Canada
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149
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Prendergast ME, Lipson M, Sawchuk EA, Olalde I, Ogola CA, Rohland N, Sirak KA, Adamski N, Bernardos R, Broomandkhoshbacht N, Callan K, Culleton BJ, Eccles L, Harper TK, Lawson AM, Mah M, Oppenheimer J, Stewardson K, Zalzala F, Ambrose SH, Ayodo G, Gates HL, Gidna AO, Katongo M, Kwekason A, Mabulla AZP, Mudenda GS, Ndiema EK, Nelson C, Robertshaw P, Kennett DJ, Manthi FK, Reich D. Ancient DNA reveals a multistep spread of the first herders into sub-Saharan Africa. Science 2019; 365:science.aaw6275. [PMID: 31147405 DOI: 10.1126/science.aaw6275] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 05/13/2019] [Indexed: 12/31/2022]
Abstract
How food production first entered eastern Africa ~5000 years ago and the extent to which people moved with livestock is unclear. We present genome-wide data from 41 individuals associated with Later Stone Age, Pastoral Neolithic (PN), and Iron Age contexts in what are now Kenya and Tanzania to examine the genetic impacts of the spreads of herding and farming. Our results support a multiphase model in which admixture between northeastern African-related peoples and eastern African foragers formed multiple pastoralist groups, including a genetically homogeneous PN cluster. Additional admixture with northeastern and western African-related groups occurred by the Iron Age. These findings support several movements of food producers while rejecting models of minimal admixture with foragers and of genetic differentiation between makers of distinct PN artifacts.
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Affiliation(s)
- Mary E Prendergast
- Division of Humanities, Saint Louis University, 28003 Madrid, Spain. .,Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Mark Lipson
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.
| | - Elizabeth A Sawchuk
- Department of Anthropology, Stony Brook University, Stony Brook, NY 11790, USA.
| | - Iñigo Olalde
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Christine A Ogola
- Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya
| | - Nadin Rohland
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Kendra A Sirak
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Nicole Adamski
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Rebecca Bernardos
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Nasreen Broomandkhoshbacht
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Kimberly Callan
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Brendan J Culleton
- Institutes for Energy and the Environment, Pennsylvania State University, University Park, PA 16802, USA
| | - Laurie Eccles
- Department of Anthropology, Pennsylvania State University, University Park, PA 16802, USA
| | - Thomas K Harper
- Department of Anthropology, Pennsylvania State University, University Park, PA 16802, USA
| | - Ann Marie Lawson
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Matthew Mah
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Jonas Oppenheimer
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Kristin Stewardson
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Fatma Zalzala
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Stanley H Ambrose
- Department of Anthropology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - George Ayodo
- Department of Public and Community Health, School of Health Sciences, Jaramogi Oginga Odinga University of Science and Technology, Bondo, Kenya
| | - Henry Louis Gates
- Hutchins Center for African and African American Research, Harvard University, Cambridge, MA 02138, USA
| | | | | | | | | | | | - Emmanuel K Ndiema
- Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya
| | - Charles Nelson
- Academy for Lifelong Learning, Western Washington University, Bellingham, WA 98225, USA
| | - Peter Robertshaw
- Department of Anthropology, California State University, San Bernardino, CA 92407, USA
| | - Douglas J Kennett
- Department of Anthropology, University of California, Santa Barbara, CA 93106, USA
| | - Fredrick K Manthi
- Department of Earth Sciences, National Museums of Kenya, Nairobi, Kenya
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. .,Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.,Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
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150
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Isern N, Fort J. Assessing the importance of cultural diffusion in the Bantu spread into southeastern Africa. PLoS One 2019; 14:e0215573. [PMID: 31067220 PMCID: PMC6506142 DOI: 10.1371/journal.pone.0215573] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 04/05/2019] [Indexed: 11/18/2022] Open
Abstract
The subsistence of Neolithic populations is based on agriculture, whereas that of previous populations was based on hunting and gathering. Neolithic spreads due to dispersal of populations are called demic, and those due to the incorporation of hunter-gatherers are called cultural. It is well-known that, after agriculture appeared in West Africa, it spread across most of subequatorial Africa. It has been proposed that this spread took place alongside with that of Bantu languages. In eastern and southeastern Africa, it is also linked to the Early Iron Age. From the beginning of the last millennium BC, cereal agriculture spread rapidly from the Great Lakes area eastwards to the East African coast, and southwards to northeastern South Africa. Here we show that the southwards spread took place substantially more rapidly (1.50–2.27 km/y) than the eastwards spread (0.59–1.27 km/y). Such a faster southwards spread could be the result of a stronger cultural effect. To assess this possibility, we compare these observed ranges to those obtained from a demic-cultural wave-of-advance model. We find that both spreads were driven by demic diffusion, in agreement with most archaeological, linguistic and genetic results. Nonetheless, the southwards spread seems to have indeed a stronger cultural component, which could lead support to the hypothesis that, at the southern areas, the interaction with pastoralist people may have played a significant role.
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Affiliation(s)
- Neus Isern
- Complex Systems Laboratory, University of Girona, Girona, Catalonia, Spain
| | - Joaquim Fort
- Complex Systems Laboratory, University of Girona, Girona, Catalonia, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Catalonia, Spain
- * E-mail:
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