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MtDNA hg M10 in Koreans
Topic Started: Jul 9 2007, 03:59:55 PM (259 Views)
black man
The Right Hand
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addendum:

according to Eng 2014, it's probably originally from northern China. People who are interested in the geneses of ancient civilisations might find worth mentioning that M10 could have spread together with elites from northern China.

Sources:
see link plus
Eng 2014: "Complete mitochondrial DNA genome variation in Peninsular Malaysia"




old post:

as one paper by Uchiyama et al. 2007 suggests, mtDNA hg M10 could have survived as a relatively common matrilineage in parts of the Toukyou metropolitan area. If so, there might still be descendants of an apparently matrilocal community which already lived in the Kantou region during Joumon period. (Kanzawa-Kiriyama et al. 2013 reported having detected the markers of this hg in their sample.)

However, M10 is not at all common in Japan as a whole and might not even be common in the Kantou region as a whole (see Uchiyama et al. 2007, Umetsu et al. 2005 etc). Therefore, one might consider the idea that a M10 was introduced to the Kantou region by a matrilocal population which arrived there later on. Such a population coudl have been from the Korean peninsula.

Unfortunately, Korean studies so far generally don't refer to the regional backgrounds of their samples. Authors only mention from where they took the samples. I.e., one might suppose that most of the samples are from the respective cities and their respective surroundings. But at least M10 seems to be common in a couple of samples from there. So one might already get some ideas about the spread of this hg within Korea.

- Gwangju city(?): 5/58=8,6% (Pfeiffer et al. 1998 via Kim Hye-Ran et al. 2008)
- Jeollanam-do Hwasun(?): 4/70=5,7% (Kim Hye-Ran et al. 2008)
- Seoul/Gyeonggi: 4/134=3,0% (Hong Seung-Beom et al. 2014)
- Gyeongsang: 2/112=1,8% (Hong Seung-Beom et al. 2014)
- Gangwon: 2/114=1,8% (Hong Seung-Beom et al. 2014)
- Jeolla: 2/118=1,7% (Hong Seung-Beom et al. 2014)
- southern Korea as whole pooled or unnamed region(s) within it: 9/593=1,5% (Lee Hwan-Young et al. 2006)
- Jeju: 1/113=0,9% (Hong Seung-Beom et al. 2014)
- Seoul and Daejeon pooled (n=122): apparently absent; one man (0,8%) in M* (Kim Wook et al. 2008)
- Chungcheong (n=117): absent (Hong Seung-Beom et al. 2014)

Strangely, this hg seems to be rather unevenly distributed. I.e., it might be from matrilocal communities which conservatively stayed in certain places until they were assimilated by newcomers who outnumbered them by far. Then again, the absence of this hg in Chungcheong (including Daejeon) seems to be confirmed by two different studies. So in premodern times one major locations might have been in Gyeonggi and another in southern Jeolla. Further, there might have been such locations in eastern and northern Korea. But there is no doubt that more detailed studies will have to be conducted at the local level in general for the sake of a deeper understanding of the spread of M10.

https://en.wikipedia.org/wiki/Eight_Provinces_of_Korea
https://en.wikipedia.org/wiki/File:Provinces_of_South_Korea_%28numbered_map%29.png

Edited by black man, Jun 3 2018, 02:52:04 PM.
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