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Thread: New map of Y-DNA haplogroups in East Asia

  1. #1
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    1 members found this post helpful.

    Post New map of Y-DNA haplogroups in East Asia

    I have considerably expanded my Genetic history of the Japanese, and added regional frequencies in Japan and in neighbouring populations. The Y-DNA data is still too scare to make fine-scale distribution maps by haplogroup, but this map with pie charts should help visualise the bigger picture.

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    Y-DNA haplogroup
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    We clearly see, what the Japanese have what other typical East Eurasian lack is the Haplogroup D, that they most likely absorbed from Ainus and related groups. The three most typical parts for Japanese are the Ainu D, the Taiwanese O1a and the Han Chinese typical O2a.

    I was expecting more Q1 among Mongols but it seems C2a is the stronger among them followed by O2.

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    2 members found this post helpful.
    Quote Originally Posted by Alan View Post
    We clearly see, what the Japanese have what other typical East Eurasian lack is the Haplogroup D, that they most likely absorbed from Ainus and related groups. The three most typical parts for Japanese are the Ainu D, the Taiwanese O1a and the Han Chinese typical O2a.

    I was expecting more Q1 among Mongols but it seems C2a is the stronger among them followed by O2.
    Maybe the colours of the O subclades are not clear enough on the map, but the Chinese Neolithic O3 (red) is actually the dominant form of O among the Mongols, Manchus and Koreans, and the 2nd O subclade in Japan after O2b (dark violet). O2a (pink) is rare everywhere except in China and Southeast Asia. O1 (light violet) is found especially in Taiwan, southern China and Southeast Asia. You can see the exact percentages on the Y-DNA table for East Asia.

    As for D1b (former D2), the Ainus happen to have a lot of it, but that doesn't mean that the Japanese absorbed the Ainus. There were different tribes of hunter-gatherers in Japan during the Jōmon period (15,000-300 BCE). The Ainus were probably just the northern ones. The Ryukyuans also have a lot of D1b, but mixed with C1a1 (as opposed to C2a for the Ainus), and are autosomally distinct from the Ainus. The Japanese ethnicity emerged after the Yayoi people from Korea invaded Jōmon Japan from 500 BCE and the two populations blend together.

    I recently hypothesised that a third population was also part of the genetic admixture of modern Japanese. Archaeologists had known for a while that from c. 4500 BCE some Jōmon tribes practised arboriculture as well as occasional agriculture. Even though it wasn't their main staple, the diversity of the crops cultivated can only be explained by the migration of Neolithic farmers from China. The crops included barley, barnyard millet, buckwheat, rice, bean, soybean, burdock, hemp, egoma and shiso mint, mountain potato, taro potato, and bottle gourd. Most of these domesticated plants, including rice and millet, are very unlikely to have been domesticated independently by the Jōmon hunter-gatherers.

    A very little publicised study by Kenichi Shinoda (2003) identified Chinese-looking mtDNA lineages (haplogroups A, B, F, M8a and M10) in the Kanto region dating from the late Jōmon period mixed with typical Jōmon lineages (M7a, N9b). These Chinese lineages made up about 65 to 75% of the maternal lineages among the tested samples, which is huge, and was probably a local phenomenon limited to the few large fertile plains in Japan, while the rest of the mountainous country was surely inhabited primarily by hunter-gatherers. Nevertheless this is strong evidence that a migration from the continent took place long before the Yayoi invasion.

    I have analysed in detail the mtDNA and Y-DNA of the Japanese and their neighbours and it struck me that some lineages looked much more South Chinese than Korean. That is the case of Y-haplogroups D1a1, O1a, O2a, O3a1, O3a2 and mt-haplogroups M7b, M7c, M9, M12. All of them are more common in southern China, Taiwan, Okinawa and Japan than in Korea. This, I believe, is another credible sign of a Neolithic colonisation of Japan from southern China, via Taiwan and the Ryukyu Islands (Okinawa). I have also listed convincing linguistic evidence that modern Japanese contains words and grammatical structure from Proto-Austronesian, the language of the South Chinese Neolithic farmers that colonised Taiwan, the Philippines, Indonesia, Malaysia, and in my opinion also Japan. Many linguists had argued before that Old Japanese was a mix of Korean/Altaic and Austronesian languages and had proposed that Jomon people spoke an Austronesian language. All the pieces of the puzzle seem to be falling into place now when combining archaeological and linguistic evidence with genetic one.
    Last edited by Maciamo; 13-12-16 at 19:13.

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    1 members found this post helpful.
    Y-chromosome data from different localities of Hulun Buir Aimak, Inner Mongolia (Malyarchuk 2016):

    Barghuts (n=76)
    C2c1a1a1-M407.........55.3%
    N1c1-Tat....................27.6%
    C2-M217....................10.5%
    T1a-M70......................1.3%
    R2a-M124....................1.3%
    O2-M122......................1.3%
    J2a-M410.....................1.3%
    G-M201........................1.3%

    "In the 12–13th centuries, the Barga (Barghuts) Mongols appeared as tribes near Lake Baikal, named Bargujin."

    T1a have been found in several Mongolian samples.

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    Another thing is where the chinese O2a originated in.
    Considering mongoloid phenotype and ABCC11(AA) recessive gene map, I think they might migrate from far north unlike european GG migration


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    Quote Originally Posted by Alpenjager View Post
    Y-chromosome data from different localities of Hulun Buir Aimak, Inner Mongolia (Malyarchuk 2016):

    Barghuts (n=76)
    C2c1a1a1-M407.........55.3%
    N1c1-Tat....................27.6%
    C2-M217....................10.5%
    T1a-M70......................1.3%
    R2a-M124....................1.3%
    O2-M122......................1.3%
    J2a-M410.....................1.3%
    G-M201........................1.3%

    "In the 12–13th centuries, the Barga (Barghuts) Mongols appeared as tribes near Lake Baikal, named Bargujin."

    T1a have been found in several Mongolian samples.
    Thanks, I didn't have access to that study's data. I have updated the Y-DNA frequencies for the Mongols. Will update the map later.

    Xue et al (2006) also found 7.3% of R1a among Mongols (8 out of 110 samples). Katoh et al (2005) found an average of 19.5% of R1a1 in Mongolia among 4 ethnic groups, including 73.5% among the Khotons. Manchuria, Korea and Northern China also have some R1a (less than 1% though). No R1a has been found in Japan yet, but it would be surprising if there wasn't a tiny bit of it.

    Katoh 2005 and Xue 2006 didn't test for T1a (not yet identified in 2006), but there were 9 K* samples in Katoh and 3 in Xue that surely correspond.

    Nour Moussa's PhD thesis (2016) reported a high percentage of K* (also untested for T) from Neolithic Lake Baikal Siberia, but apparently no G2a or J2a. Those two might have come later.

    What I find remarkable in Malyarchuk 's study is that all the N samples are N1c1, and none belong to other subclades found around China or Siberia. We knew that N, N1, and N1c were all found in Neolithic Manchuria, but now it looks like Uralic N1c1 might be an offshoot from a branch of those Neolithic farmers who had previously settled around Mongolia.
    Last edited by Maciamo; 14-12-16 at 19:55.

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    Any R1 in Japan?

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    Wow mongols have R1a and J2!Anyway even the Uyghurs have a lot of J2 and R1 afaik.
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    Quote Originally Posted by Hauteville View Post
    Wow mongols have R1a and J2!Anyway even the Uyghurs have a lot of J2 and R1 afaik.
    Perhaps the J2 comes from South Central Asia.

    Thanks a lot, Maciamo!

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    Were the Tocharians responsible for introducing the chariot to China ? maybe that explains the R1a presence in northern Han Chinese.

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    nice work maciamo,
    haplogroup d could be Mesolithic in japan :)
    best regards
    adam

    from wikipedia:
    The Haplogroup D-M174 Y-chromosomes that are found among populations of the Japanese Archipelago (haplogroup D-M55 a.k.a. haplogroup D2) are particularly distinctive, bearing a complex of at least five individual mutations along an internal branch of the Haplogroup D-M174 phylogeny , thus distinguishing them clearly from the Haplogroup D-M174 chromosomes that are found among the Tibetans and Andaman Islanders and providing evidence that Y-chromosome Haplogroup D-M5 was the modal haplogroup in the ancestral population that developed the prehistoric jomon culture in the Japanese islands.

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    Quote Originally Posted by Huitzilopochtli View Post
    Perhaps the J2 comes from South Central Asia.

    Thanks a lot, Maciamo!
    J2 is a caucasoid haplogroup and also founded into neolithic Europe (Hungary), speculate the presence into the Mongols is difficult but Tocharians could be a good explanation imo.

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