Average Japanese are genetically 25% Southeast Asian!

[Iloko]

The 25% must be the Jomon admixture, while the 75% the Yayoi.

The Jomon influence would be even higher amongst the Ainu and Okinawan populations of course.

https://genographic.nationalgeograph...e-populations/

[Lucas]

25% SE-Asian isn't only Jomon. It's influence which reach Japan through Ryuku > Taiwan and is later and Austronesian-like.

[StonyArabia]

National geographic DNA is very inaccurate.

[sailormoon]

ALTAIAN (SIBERIAN)



The Altaians (Siberians) are also estimated to be 22% Southwest Asian and the Jomon are genetically close to native Siberians. I think the Altai is the source of Southeast Asian admixture in the modern Japanese population inherited from the Jomon. The Jomon culture can be traced back to the lower Amur River basin based on archaeological evidence. Jomon haplogroups were observed with relatively high frequencies in the southeastern Siberians, but they were absent in southeastern Asian populations (Adachi et al. 2011). The Jomon genetic influence is higher among the Ainu and Okinawan because their ancestors didn't admix with the Yayoi migrants from China as much as the maninald Japanese did because they lived on separated islands.

To clarify the colonizing process of East/Northeast Asia as well as the peopling of the Americas, identifying the genetic characteristics of Paleolithic Siberians is indispensable. However, no genetic information on the Paleolithic Siberians has hitherto been reported. In the present study, we analyzed ancient DNA recovered from Jomon skeletons excavated from the northernmost island of Japan, Hokkaido, which was connected with southern Siberia in the Paleolithic period. Both the control and coding regions of their mitochondrial DNA (mtDNA) were analyzed in detail, and we confidently assigned 54 mtDNAs to relevant haplogroups. Haplogroups N9b, D4h2, G1b, and M7a were observed in these individuals, with N9b being the predominant one. The fact that all these haplogroups, except M7a, were observed with relatively high frequencies in the southeastern Siberians, but were absent in southeastern Asian populations, implies that most of the Hokkaido Jomon people were direct descendants of Paleolithic Siberians. The coalescence time of N9b (ca. 22,000 years) was before or during the last glacial maximum, implying that the initial trigger for the Jomon migration in Hokkaido was increased glaciations during this period. Interestingly, Hokkaido Jomons lack specific haplogroups that are prevailing in present-day native Siberians, implying that diffusion of these haplogroups in Siberia might have been after the beginning of the Jomon era, about 15,000 years before present.
https://www.ncbi.nlm.nih.gov/pubmed/21953438

CHINESE



Another possibility is that it was the Yayoi migrants who introduced Southeast Asian admixture to the modern Japanese population and they arrived from the Chinese mainland via the Korean Peninsula in Yayoi period (1000 BCE–300 CE). The Yayoi culture was very advanced compared to the Jomon-period culture it replaced. It introduced skills to Japan such as the manufacturing of bronze and copper weapons as well as irrigated paddy rice cultivation. The Yayoi culture was brought by immigrants from China as three major symbols of the Yayoi culture—the bronze mirror, the sword, and the royal seal stone—are exactly the same symbols used by the Qin Empire. Overall, the modern Japanese population is approximately 20% Jomon and 80% Yayoi, making them genetically closer to the Chinese who are 28% Southeast Asian.

This reference population is based on samples collected from the population of Beijing, China. The 72% Northeast Asian and 28% Southeast Asian percentages are representative of migrations in East Asia, with the northeast Asian component likely coming from the earliest settlers in eastern Siberia and northern China, and the southeast Asian component reflecting mixing with groups that originated further south.

[Gangrel]

ALTAIAN (SIBERIAN)



The Altaians (Siberians) are also estimated to be 22% Southeast Asian and the Jomon are genetically close to native Siberians. I think the Altai is the source of Southeast Asian admixture in the modern Japanese population.

It says Southwest asian

[Voskos]

Makes sense. They look like polynesians.

[Smeagol]

Makes sense. They look like polynesians.

Not at all. Look at crowd photos of Japanese people. They look closest to Koreans.

[Iloko]

25% SE-Asian isn't only Jomon. It's influence which reach Japan through Ryuku > Taiwan and is later and Austronesian-like.

Is it true in general that the Jomons had a southern/SE-Asian origin as opposed to northern?

http://s1.zetaboards.com/anthroscape/topic/5754453/1/

[StonyArabia]

Not at all. Look at crowd photos of Japanese people. They look closest to Koreans.

It's because the Japanese originated from the Korean peninsula but both groups dislike this theory due to hostilities between them. Both the Emeshi and Ainu were different group than the more Asiatic people. The Emeshi were related to the Ainu, and were hairy unlike the typical Mongoloids. Often having heavy beards and body hair in males. There is some Southeast Asian elements in Japanese but those are in the Okinawan islands, not mainstream Japan, and the people from the Okinawan islands are considered a different sub-ethnic group. Their language is not mutable for example. Linguistically Korean is also close to Japanese, but there seems to be more need research to confirm it.

Some of the results of National geographic are questionable to be honest look at Argentina and Iran. The Kuwait sample seems somewhat accurate though