Genome-wide SNP data of Izumo and Makurazaki populations support inner-dual structure model for origin of Yamato people
The “Dual Structure” model on the formation of the modern Japanese population assumes that the indigenous huntergathering population (symbolized as Jomon people) admixed with rice-farming population (symbolized as Yayoi people) who migrated from the Asian continent after the Yayoi period started. Th...
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| Main Authors: | , , , , , , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
Springer Nature
2021
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| 主題: | |
| 在線閱讀: | http://ir.unimas.my/id/eprint/42052/1/Genome.pdf http://ir.unimas.my/id/eprint/42052/ https://www.nature.com/articles/s10038-020-00898-3 https:// doi.org/10.1038/s10038-020-00898-3 |
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| 總結: | The “Dual Structure” model on the formation of the modern Japanese population assumes that the indigenous huntergathering population (symbolized as Jomon people) admixed with rice-farming population (symbolized as Yayoi people) who migrated from the Asian continent after the Yayoi period started. The Jomon component remained high both in Ainu and Okinawa people who mainly reside in northern and southern Japan, respectively, while the Yayoi component is higher in the mainland Japanese (Yamato people). The model has been well supported by genetic data, but the Yamato population was
mostly represented by people from Tokyo area. We generated new genome-wide SNP data using Japonica Array for 45
individuals in Izumo City of Shimane Prefecture and for 72 individuals in Makurazaki City of Kagoshima Prefecture in
Southern Kyushu, and compared these data with those of other human populations in East Asia, including BioBank Japan
data. Using principal component analysis, phylogenetic network, and f4 tests, we found that Izumo, Makurazaki, and
Tohoku populations are slightly differentiated from Kanto (including Tokyo), Tokai, and Kinki regions. These results
suggest the substructure within Mainland Japanese maybe caused by multiple migration events from the Asian continent
following the Jomon period, and we propose a modified version of “Dual Structure” model called the “Inner-Dual
Structure” model. |
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