|
In human genetics, Haplogroup G (M201) is a Y-chromosome haplogroup. It is one of two branches of Haplogroup GHIJK, the other being Haplogroup HIJK. Haplogroup G has an overall low frequency in most populations but is widely distributed within ethnic groups of the Old World in the Middle East, Europe, Caucasus, South Asia, western and central Asia, and northern Africa. ==Origins== Various estimated dates and locations have been proposed for the origin of Haplogroup G. The National Geographic Society places haplogroup G origins in the Middle East 30,000 years ago and presumes that people carrying the haplogroup took part in the spread of the Neolithic.〔 (Atlas of the Human Journey: Haplogroup G (M201) ) 〕 Two scholarly papers have also suggested an origin in the Middle East, while differing on the date. Semino et al. (2000) suggested 17,000 years ago.〔 〕 Cinnioglu et al. (2004) suggested the mutation took place only 9,500 years ago.〔 〕 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「Haplogroup G-M201」の詳細全文を読む スポンサード リンク
|