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6/19/2025, 2:03:28 PM
>>17774899
EHG transmitted the East Asian EDAR to SHG and Yamnaya. So their East Eurasian comes from the same stock as modern East Asians.
The blue line: Y-DNA K
The orange line: Y-DNA C/D
"This cranio-morphometric study emphasizes a “two-layer model” for eastern Eurasian anatomically modern human (AMH) populations, based on large datasets of 89 population samples including findings directly from ancient archaeological contexts. Results suggest that an initial “first layer” of AMH had related closely to ancestral Andaman, Australian, Papuan, and Jomon groups who likely entered this region via the Southeast Asian landmass, prior to 65–50kya. A later “second layer” shared strong cranial affinities with Siberians, implying a Northeast Asian source, evidenced by 9kya in central China and then followed by expansions of descendant groups into Southeast Asia after 4kya. These two populations shared limited initial exchange, and the second layer grew at a faster rate and in greater numbers, linked with contexts of farming that may have supported increased population densities. Clear dichotomization between the two layers implies a temporally deep divergence of distinct migration routes for AMH through both southern and northern Eurasia."
https://www.nature.com/articles/s41598-018-35426-z
https://www.nature.com/articles/s41598-021-00295-6
EHG transmitted the East Asian EDAR to SHG and Yamnaya. So their East Eurasian comes from the same stock as modern East Asians.
The blue line: Y-DNA K
The orange line: Y-DNA C/D
"This cranio-morphometric study emphasizes a “two-layer model” for eastern Eurasian anatomically modern human (AMH) populations, based on large datasets of 89 population samples including findings directly from ancient archaeological contexts. Results suggest that an initial “first layer” of AMH had related closely to ancestral Andaman, Australian, Papuan, and Jomon groups who likely entered this region via the Southeast Asian landmass, prior to 65–50kya. A later “second layer” shared strong cranial affinities with Siberians, implying a Northeast Asian source, evidenced by 9kya in central China and then followed by expansions of descendant groups into Southeast Asia after 4kya. These two populations shared limited initial exchange, and the second layer grew at a faster rate and in greater numbers, linked with contexts of farming that may have supported increased population densities. Clear dichotomization between the two layers implies a temporally deep divergence of distinct migration routes for AMH through both southern and northern Eurasia."
https://www.nature.com/articles/s41598-018-35426-z
https://www.nature.com/articles/s41598-021-00295-6
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