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Human Biology New Detailed Far East Asian DNA PCA Plot

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SapphireSky
(@sapphiresky)
Posts: 102
Estimable Member
Topic starter
 

The most complete North/East/Southeast asian DNA PCA plot I have seen so far.

fgene 12 725243 g001

It's very interesting to see how Jomon Japanese seem to be half Austronesian and half Mongolian-like in terms of DNA. This confirms that Jomon Japanese came from multiple sources.

Link to academic research article: https://www.frontiersin.org/articles/10.3389/fgene.2021.725243/full

 
Posted : 19/10/2021 7:56 pm
MeLeona and ZeXsY(PMP23) reacted
josh avatar
(@zexsypmp23)
Posts: 4380
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Austronesian, Austroasiatic & Tai-kadai have a very strong overlap with one another. while hmong are not south east asian but more related to mongolic people. 

 
Posted : 19/10/2021 9:37 pm
Lannie avatar
(@meleona)
Posts: 806
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Conclusion

We performed a comprehensive genomic meta-analysis focused on Neolithic to present-day people to clarify the relationship between the TP highlanders and lowland East Asians and to explore the peopling of TP. We found a strong genetic affinity between Tibetans and Neolithic to present-day NEAs, which suggested Tibeto-Burman speakers originated from the Upper and Middle YRB in northern China. The observation of the shared ancestry between Han Chinese and Tibetans was consistent with the co-dispersal of millet farmers and Sino-Tibetan languages. Although the shared ancestry persisted between ancient Tibetans and lowland Neolithic people (Yangshao/Longshan/Houli culture), we also found genetic differentiation between them: highland Tibetans harbored more deeply diverged eastern Eurasian Onge-related hunter-gatherer ancestry, but the lowland Neolithic to present-day NEAs possessed more ancestry related to the Neolithic SEAs and Siberians, which not only suggested the co-existence of Paleolithic and Neolithic ancestries in ancient/modern Tibetans but also illuminated the population history of Paleolithic colonization and Neolithic expansion. Besides, consistent with the geographic/linguistic divisions, we identified population substructures in modern Tibetans: more Onge/Hoabinhian related ancestry in Ü-Tsang Tibetans, much more western Eurasian related ancestry in Ando Tibetans, and more Neolithic SEA related ancestry in Kham Tibetan. In short, modern East Asian highlanders derived their ancestry from at least five waves of population admixture: Hoabinhian as the oldest Paleolithic layer; additional gene flow from two Neolithic expansions (inland and coastal) from NEAs, one Neolithic SEA northwestward expansion and one western Eurasian eastward expansion.

 
Posted : 20/10/2021 2:36 am