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21/04/17 04:15:02.21 pnKQiiMs0.net
Modern human DNA analyses with special reference to the inner dual-structure model of Yaponesian
Timothy A. Jinam1,2, Yosuke Kawai3, Naruya Saitou1,2,4,5*
doi: URLﾘﾝｸ(doi.org)
Dataset 3
We now used genome-wide SNP data (see Materials and
Methods) for two Yaponesian populations (Ainu and Okinawa),
and genome data for Jomon F23 and Yamato, and three
continental East Asians (Koreans, CHB, and CHS) to estimate
their ancestral population structure. Figure 7a shows
the result of admixture analysis when the number of ancestral
components (k) was assumed to be 2?7. When k = 2, the
two ancestral components are color-coded blue and orange.
Interestingly, some Ainu individuals are 100% blue component
as in the F23 Jomon individual. The lowest blue component
for Ainu individuals was more than 50%. Whereas all
Okinawa individuals have more or less 30% blue component,
Yamato individuals are on average ~15% blue component.
Among continental populations, only Korean has ~5%
blue component, and CHB and CHS contain very small
proportions of the blue component, if any. This admixture
result for k = 2 is very similar to Supplementary Figure 2 of
Jinam et al. (2015), and fits well with the dual-structure
model of Yaponesian formation; the blue component is indigenous
(Jomon) component, and the orange component is
migrants to Yaponesia after the Yayoi period.
Figure 7. (a) Admixture result
URLﾘﾝｸ(image.prntscr.com)

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