Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry

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• dc.contributor.author Castro e Silva, Marcos Araújo
• dc.contributor.author Ferraz, Tiago
• dc.contributor.author Bortolini, Maria Cátira
• dc.contributor.author Comas, David, 1969-
• dc.contributor.author Hünemeier, Tábita
• dc.date.accessioned 2021-05-10T07:38:55Z
• dc.date.available 2021-05-10T07:38:55Z
• dc.date.issued 2021
• dc.description.abstract Different models have been proposed to elucidate the origins of the founding populations of America, along with the number of migratory waves and routes used by these first explorers. Settlements, both along the Pacific coast and on land, have been evidenced in genetic and archeological studies. However, the number of migratory waves and the origin of immigrants are still controversial topics. Here, we show the Australasian genetic signal is present in the Pacific coast region, indicating a more widespread signal distribution within South America and implicating an ancient contact between Pacific and Amazonian dwellers. We demonstrate that the Australasian population contribution was introduced in South America through the Pacific coastal route before the formation of the Amazonian branch, likely in the ancient coastal Pacific/Amazonian population. In addition, we detected a significant amount of interpopulation and intrapopulation variation in this genetic signal in South America. This study elucidates the genetic relationships of different ancestral components in the initial settlement of South America and proposes that the migratory route used by migrants who carried the Australasian ancestry led to the absence of this signal in the populations of Central and North America.
• dc.format.mimetype application/pdf
• dc.identifier.citation Castro E Silva MA, Ferraz T, Bortolini MC, Comas D, Hünemeier T. Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry. Proc Natl Acad Sci U S A. 2021;118(14):e2025739118. DOI: 10.1073/pnas.2025739118
• dc.identifier.doi http://dx.doi.org/10.1073/pnas.2025739118
• dc.identifier.issn 0027-8424
• dc.identifier.uri http://hdl.handle.net/10230/47363
• dc.language.iso eng
• dc.publisher National Academy of Sciences
• dc.relation.ispartof Proc Natl Acad Sci U S A. 2021;118(14):e2025739118
• dc.rights Copyright © 2021 the Author(s). Published by PNAS. This open access article is distributed underCreative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
• dc.subject.keyword Australasian
• dc.subject.keyword Native Americans
• dc.subject.keyword Pacific coastal route
• dc.subject.keyword Genetics
• dc.subject.keyword Settlement of South America
• dc.title Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/publishedVersion