The migration of individuals from North Asia to North America across the Bering Sea is a well-established event in early human history. Despite this, the genetic composition of the people who inhabited North Asia during this time period has remained elusive due to a scarce number of ancient genomes
, researchers reveal genomes from ten individuals, some up to 7,500 years old, which shed light on this gap and demonstrate gene flow in the reverse direction, from North America to North Asia.
Posth notes that the Altai region is known in the media as the location where a new archaic hominin group, the Denisovans, was discovered. But the region also has importance in human history as a crossroad for population movements between northern Siberia, Central Asia, and East Asia over millennia.
“The finding that surprised me the most is from an individual dated to a similar period as the other Altai hunter-gatherers but with a completely different genetic profile, showing genetic affinities to populations located in the Russian Far East,” says Ke Wang at, China, and lead author of the study. “Interestingly, the Nizhnetytkesken individual was found in a cave containing rich burial goods with a religious costume and objects interpreted as a possible representation of shamanism.
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