Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry
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.
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Format: | artículo biblioteca |
Language: | English |
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National Academy of Sciences (U.S.)
2021-04-06
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Subjects: | Settlement of South America, Australasian, Genetics, Native Americans, Pacific coastal route, |
Online Access: | http://hdl.handle.net/10261/247773 http://dx.doi.org/10.13039/501100001807 |
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dig-ibe-es-10261-2477732021-12-27T15:57:01Z Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry Araújo Castro e Silva, Marcos Ferraz, Tiago Bortolini, Maria Cátira Comas, David Hünemeier, Tábita Fundação de Amparo à Pesquisa do Estado de São Paulo Settlement of South America Australasian Genetics Native Americans Pacific coastal route 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. M.A.C.e.S was supported by Fundação de Amparo á Pesquisa do Estado de São Paulo (FAPESP) (2018/013716; 2015/26875-9) and T.F. was funded by FAPESP (2016/12371-1; 2015/26875-9). Peer reviewed 2021-08-11T07:57:22Z 2021-08-11T07:57:22Z 2021-04-06 artículo http://purl.org/coar/resource_type/c_6501 Proceedings of the National Academy of Sciences of the USA 118(14): e2025739118 (2021) 0369-8203 http://hdl.handle.net/10261/247773 10.1073/pnas.2025739118 2250-1762 http://dx.doi.org/10.13039/501100001807 33782134 en Publisher's version https://doi.org/10.1073/pnas.2025739118 Sí open National Academy of Sciences (U.S.) |
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Settlement of South America Australasian Genetics Native Americans Pacific coastal route Settlement of South America Australasian Genetics Native Americans Pacific coastal route |
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Settlement of South America Australasian Genetics Native Americans Pacific coastal route Settlement of South America Australasian Genetics Native Americans Pacific coastal route Araújo Castro e Silva, Marcos Ferraz, Tiago Bortolini, Maria Cátira Comas, David Hünemeier, Tábita Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
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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. |
author2 |
Fundação de Amparo à Pesquisa do Estado de São Paulo |
author_facet |
Fundação de Amparo à Pesquisa do Estado de São Paulo Araújo Castro e Silva, Marcos Ferraz, Tiago Bortolini, Maria Cátira Comas, David Hünemeier, Tábita |
format |
artículo |
topic_facet |
Settlement of South America Australasian Genetics Native Americans Pacific coastal route |
author |
Araújo Castro e Silva, Marcos Ferraz, Tiago Bortolini, Maria Cátira Comas, David Hünemeier, Tábita |
author_sort |
Araújo Castro e Silva, Marcos |
title |
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
title_short |
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
title_full |
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
title_fullStr |
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
title_full_unstemmed |
Deep genetic affinity between coastal Pacific and Amazonian natives evidenced by Australasian ancestry |
title_sort |
deep genetic affinity between coastal pacific and amazonian natives evidenced by australasian ancestry |
publisher |
National Academy of Sciences (U.S.) |
publishDate |
2021-04-06 |
url |
http://hdl.handle.net/10261/247773 http://dx.doi.org/10.13039/501100001807 |
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_version_ |
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