Clarification of the origin and population history of the modern Ainu through morphological and genetic anaylsis

为了评估遗传亲和性和现代阿伊努人的形成过程，使用古代DNA分析技术分析了122个骨骼样本。我们从100具遗骸中检索了线粒体DNA （mtDNA）序列和编码区信息。研究结果表明，西伯利亚人对阿伊努人的遗传结构有显著影响，鄂霍次克人可能是阿伊努人西伯利亚mtDNA的主要来源。这些观点也被基于北海道阿伊努人非计量颅骨特征的分析所证实。北海道阿伊努人的核心身体构成来源于北海道的祖先人口，鄂霍次克人被认为对北海道阿伊努人的民族形成施加了一定程度的遗传影响。

To assess the genetic affinities and the process of the formation of the modern Ainu population, 122 skeletal samples were analyzed using ancient DNA analysis techniques. We retrieved the mitochondrial DNA (mtDNA) sequences and coding region information from 100 remains. Our results indicate that the Siberian input on the Ainu significantly affected their genetic structure, and that the Okhotsk people might be the main source of Siberian mtDNA in the Ainu. These views were also confirmed by an analysis based on nonmetric cranial traits of the Hokkaido Ainu. The core physical makeup of the Hokkaido Ainu was derived from the ancestral population in Hokkaido, the Okhotsk people are considered to have exerted a certain amount of genetic influence on the ethnogenesis of the Hokkaido Ainu.