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

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,

SUBMITTER: Castro E Silva MA 

PROVIDER: S-EPMC8040822 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature