Population histories and genomic diversity of South American natives

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• dc.contributor.author Castro e Silva, Marcos Araújo
• dc.contributor.author Ferraz, Tiago
• dc.contributor.author Couto-Silva, Cainã M.
• dc.contributor.author Lemes, Renan B.
• dc.contributor.author Nunes, Kelly
• dc.contributor.author Comas, David, 1969-
• dc.contributor.author Hünemeier, Tábita
• dc.date.accessioned 2022-03-21T07:28:11Z
• dc.date.available 2022-03-21T07:28:11Z
• dc.date.issued 2022
• dc.description.abstract South America is home to one of the most culturally diverse present-day native populations. However, the dispersion pattern, genetic substructure, and demographic complexity within South America are still poorly understood. Based on genome-wide data of 58 native populations, we provide a comprehensive scenario of South American indigenous groups considering the genomic, environmental, and linguistic data. Clear patterns of genetic structure were inferred among the South American natives, presenting at least four primary genetic clusters in the Amazonian and savanna regions and three clusters in the Andes and Pacific coast. We detected a cline of genetic variation along a west-east axis, contradicting a hard Andes-Amazon divide. This longitudinal genetic variation seemed to have been shaped by both serial population bottlenecks and isolation by distance. Results indicated that present-day South American substructures recapitulate ancient macroregional ancestries and western Amazonia groups show genetic evidence of cultural exchanges that led to language replacement in precontact times. Finally, demographic inferences pointed to a higher resilience of the western South American groups regarding population collapses caused by the European invasion and indicated precontact population reductions and demic expansions in South America.
• dc.format.mimetype application/pdf
• dc.identifier.citation Castro E Silva MA, Ferraz T, Couto-Silva CM, Lemes RB, Nunes K, Comas D, Hünemeier T. Population histories and genomic diversity of South American natives. Mol Biol Evol. 2022 Jan 7;39(1):msab339. DOI: 10.1093/molbev/msab339
• dc.identifier.doi http://dx.doi.org/10.1093/molbev/msab339
• dc.identifier.issn 0737-4038
• dc.identifier.uri http://hdl.handle.net/10230/52725
• dc.language.iso eng
• dc.publisher Oxford University Press
• dc.relation.ispartof Mol Biol Evol. 2022 Jan 7;39(1):msab339
• dc.rights © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.rights.uri https://creativecommons.org/licenses/by/4.0/
• dc.subject.keyword Andes-Amazonia divide
• dc.subject.keyword Genetics
• dc.subject.keyword Native Americans
• dc.subject.keyword Settlement of South America
• dc.title Population histories and genomic diversity of South American natives
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/publishedVersion