| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Outline of Final Research Achievements |
Whole-genome sequence (WGS) data of the late Okhotsk individual (NAT002) excavated from Rebun Island indicated genetic affinity with populations in the the Amur Basin. D tests and qpADm modeling suggested that NAT002 was an admixed individual between three ancestries, which were the Jomon, Kamchatka, and Amur ancestral components. The admixture dating suggested migration of Amur-related ancestry at approximately 1,600 BP, which is compatible with the archaeological evidence regarding the settlement of the Okhotsk people. Our results also imply migration of Kamchatka-related ancestry to Northern Japan at approximately 2,000 BP. In addition, WGS data of the early Okhotsk individual (NAT004) can be explained as an admixed individual between the Jomon and Kamchatka ancestries. This finding could be a direct evidence for the existence of the ancient admixed population between the Jomon and Kamchatka ancestries, which have been suggested by the NAT002 genome.
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