Reconstructed Lost Native American Populations from Eastern Brazil Are Shaped by Differential Je/Tupi Ancestry.

ABSTRACT: After the colonization of the Americas by Europeans and the consequent Trans-Atlantic Slave Trade, most Native American populations in eastern Brazil disappeared or went through an admixture process that configured a population composed of three main genetic components: the European, the sub-Saharan African, and the Native American. The study of the Native American genetic history is challenged by the lack of availability of genome-wide samples from Native American populations, the technical difficulties to develop ancient DNA studies, and the low proportions of the Native American component in the admixed Brazilian populations (on average 7%). We analyzed genome-wide data of 5,825 individuals from three locations of eastern Brazil: Salvador (North-East), Bambui (South-East), and Pelotas (

SUBMITTER: Mas-Sandoval A 

PROVIDER: S-EPMC6756188 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature