Genetic evidence for two founding populations of the Americas
Abstrak
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.
Penulis (9)
P. Skoglund
Swapan Mallick
M. Bortolini
Niru Chennagiri
T. Hünemeier
M. Petzl-Erler
F. Salzano
N. Patterson
D. Reich
Akses Cepat
- Tahun Terbit
- 2015
- Bahasa
- en
- Total Sitasi
- 374×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1038/nature14895
- Akses
- Open Access ✓