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==Haplogroups== Looking at Y-DNA studies, it would seem that one of the earliest groups of humans to reach Asia did so approximately 50 -60,000 years ago. People bearing genetic marker ancestral to both the Haplogroup C and D came through coastal India and proceeded to Southeast Asia. Haplogroup C moved to East Asia, Australia and the Americas. Another group of peoples bearing the Y-DNA Haplogroup D, have left descendants in the Andaman islands, Tibet, and the Ainus of northern Japan.〔(【引用サイトリンク】work=Genebase Tutorials ) 〕 A later group, carrying the Y-DNA haplogroup K was established approximately 40,000-50,000 years ago, whose origins were probably in Southwestern Asia or South Asia. One branch, Haplogroup Q, believed to have arisen in Central Asia or South Asia approximately 17,000 to 22,000 years ago, went north to populate Siberia and the Americas. Some northern Chinese have this genetic marker. One branch, Haplogroups N and O, went south and by 35,000 years ago went on to populate first Southeast Asia and then East Asia. Mitochondrial DNA likewise supports the hypothesis that the ancestors of the Chinese came to Asia from Africa. The M Haplogroup, a descendant of the African L3 Haplogroup, originated somewhere between Africa, India and Central Asia. This marker alone is carried by all populations in South Asia, Southeast Asia, East Asia, Oceania, and most of the Ameridian populations. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Peopling of China」の詳細全文を読む スポンサード リンク
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