Journal
SCIENCE
Volume 360, Issue 6392, Pages 1024-1027Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aar6851
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Funding
- European Research Council [FP7-261213, FP7-617627, 647787]
- Natural Environment Research Council (NERC) [NF/2016/1/6]
- Economic and Social Research Council [RG76702]
- NSF [BCS-1518026, SMA-1620239]
- Wellcome grant [098051]
- European Union through European Regional Development Fund [2014-2020.4.01.16-0024]
- NERC [NRCF010002] Funding Source: UKRI
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Little is known regarding the first people to enter the Americas and their genetic legacy. Genomic analysis of the oldest human remains from the Americas showed a direct relationship between a Clovis-related ancestral population and all modern Central and South Americans as well as a deep split separating them from North Americans in Canada. We present 91 ancient human genomes from California and Southwestern Ontario and demonstrate the existence of two distinct ancestries in North America, which possibly split south of the ice sheets. A contribution from both of these ancestral populations is found in all modern Central and South Americans. The proportions of these two ancestries in ancient and modern populations are consistent with a coastal dispersal and multiple admixture events.
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