| Budget Amount *help |
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥400,000 (Direct Cost: ¥400,000)
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| Research Abstract |
Variation in the human mitochondrial genome (mtDNA) is now used to infer the histories of peoples, by means of the sequencing of parts of the D-loop region. We extracted DNA from the Jomon and Yayoi skeletal remains and, through PCR amplification, determined nucleotide sequences of their mtDNA D-loop region. The resulting data were combined with previous mtDNA data, a total of 95 mtDNA sequences were analyzed in order to estimate the relationships between Jomon and Yayoi people, and compared these sequences with modern east Asian populations. The analysis of DNA extracted from ancient skeletal materials has demonstrated that the Jomon people were closely related to mainland Japanese, Ryukyuans, Ainu, the people of the Korean Peninsula, Mongolian, and Buriat but almost no connection to Pacific people. Additionally, it has been shown that the Yayoi people did not have a close relationship to the Ainu or Ryukyu people, but instead held a close relationship to the people of the Korean Peninsula, Southern China, and mainland Japan, among others. According to a hypothesis based on analysis of modern mtDNA, a large portion of the genetic character of the mainland Japanese is the result of people coming overseas from the Asian continent after the Yayoi period. The result of this study is not consistent with the hypothesis extracted from modern sample.
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