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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Population genetics of the Sami ： ウィキペディア英語版 Population genetics of the Sami Since the early years of genetic research, the Sami people have caught the interests of scientists. The Sami languages belong to the Uralic languages family of Eurasia. Some older anthropologist have suggested they might be of Asian and/or Siberian origin. The frequency of blood group and protein polymorphisms in Sami differ significantly from the general Swedish population. In more recent years the use of mitochondrial DNA (mtDNA) and Y-DNA chromosomal markers has offered the opportunity for clarification of the origin of the Sami. While their mtDNA haplogroup distribution overwhelmingly represents a subset of the European gene-pool, the most common Y-DNA haplogroup among the Sami is widely believed to be of Eurasian origin and very common among all peoples in Northeastern Europe. The second most common haplogroup is I, which is found almost exclusively among those of European ancestry. Thus the Sami appear to have a complex population history, suggesting a mixture of peoples arriving in Fenno-Scandia at different times, from different directions. Strangely, this small admixture of peoples has also remained homogeneous within the Saami for several millenniums thereafter. Their most common physical appearance in terms of phenotype is northern European and appears similar to Finns, Karelians or other Scandinavians.〔http://www.nordicway.com/search/Sami.htm〕 ==mtDNA Haplogroups== Classification of the Sami mtDNA lineages revealed that the majority are clustered in a subset of the European mtDNA pool. The two haplogroups V and U5b dominate, between them accounting for about 89% of the total. This gives the Sami regions the highest level of Haplogroups V and U5b thus far found. Both haplogroups V and U5b are spread at moderate frequencies across Europe, from Iberia to the Ural Mountains. Haplogroups H, D5 and Z represent most of the remaining averaged total. Overall 98% of the Sami mtDNA pool is encompassed within haplogroups V, U5b, H, Z, and D5. Local frequencies among the Sami vary. The divergence time for the Sami haplogroup V sequences was estimated by Max Ingman and Ulf Gyllensten at 7600 YBP (years before present), and for U5b1b1 as 5500 YBP amongst Sami and 6600 YBP amongst Sami and Finns. This suggests to them an arrival in the region soon after the retreat of the glacial ice. 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「Population genetics of the Sami」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.