Departmental Bulletin Paper 喜界島近世人の下顎第一大臼歯第3根の出現頻度

竹中, 正巳

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Frequencies of three-rooted lower first permanent molars in the early modern Kikaijima islander were investigated. The skeletal remains from Tekuzuku and Araki showed the three-rooted molar at 21.4% and 22.2% infrequency, respectively. The frequencies of three-rooted lower first permanent molars in the two groups were comparable to those in the early modern Tokunoshima islander, the medieval to the modern Japanese peoples, Mongolians, northeast Siberians, but were significantly higher than those in the Jomon people and Hokkaido Ainu. It is suggested that the early modern Kikaijima islander may be genetically influenced to some extent by the mainland Japanese and Asian continental populations.
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