who are the jomon/ainu people?

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who are they? who are they closest related to? do they have any european or australoid admixture? and how much did the jomon genetics stay in modern day japanese people?
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[lei.talk]

Wikipedia Several studies of numerous Jōmon skeletal remains that were excavated from various locations in the Japanese archipelago allowed researchers to learn more about the Jōmon period population of Japan.

Dental morphology suggests that the Jōmon have their own dental structure, but are generally closer to the Sundadont structure which is more common in Southeast Asia and Taiwan.

A craniometric study by Brace et al. (2001) showed a closer morphological relation of Hokkaido Jōmon samples and Ainu people to prehistoric and modern Europeans rather than to other contemporary East Asians. The study concludes that at least the Hokkaido Jōmon people are mostly descendants of a population (dubbed "Eurasians" by Brace et al.) that moved into northern Eurasia (and also the Americas) in the Late Pleistocene, which significantly predates the expansion of the modern core population of East Asia.

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interesting

[MechtoidAfalouHG]

Jomon came from Central Asian Hunter gatherers who lived around Tibet most likely. Tibetans also have Y-DNA D. So do Jarawas/Onge but it was concluded that haplo D was spread to the islands from these same Central Asian Hunter gatherers.