%0 Journal Article %J Nature %D 2015 %T Genetic evidence for two founding populations of the Americas. %A Skoglund, Pontus %A Mallick, Swapan %A Bortolini, Maria Cátira %A Chennagiri, Niru %A Hünemeier, Tábita %A Petzl-Erler, Maria Luiza %A Salzano, Francisco Mauro %A Patterson, Nick %A Reich, David %K Australia %K Central America %K Gene Frequency %K Genome, Human %K Genotype %K Humans %K Indians, Central American %K Indians, North American %K Indians, South American %K New Guinea %K Oceanic Ancestry Group %K Phylogeny %K Phylogeography %K South America %X
Genetic studies have consistently indicated a single common origin of Native American groups from Central and South America. However, some morphological studies have suggested a more complex picture, whereby the northeast Asian affinities of present-day Native Americans contrast with a distinctive morphology seen in some of the earliest American skeletons, which share traits with present-day Australasians (indigenous groups in Australia, Melanesia, and island Southeast Asia). Here we analyse genome-wide data to show that some Amazonian Native Americans descend partly from a Native American founding population that carried ancestry more closely related to indigenous Australians, New Guineans and Andaman Islanders than to any present-day Eurasians or Native Americans. This signature is not present to the same extent, or at all, in present-day Northern and Central Americans or in a ∼12,600-year-old Clovis-associated genome, suggesting a more diverse set of founding populations of the Americas than previously accepted.
%B Nature %V 525 %P 104-8 %8 2015 Sep 3 %G eng %U http://www.ncbi.nlm.nih.gov/pubmed/26196601 %N 7567 %1 http://www.ncbi.nlm.nih.gov/pubmed/26196601?dopt=Abstract %R 10.1038/nature14895