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In human mitochondrial genetics, Haplogroup K1a1b1a is a human mitochondrial DNA (mtDNA) haplogroup. The K1a1b1a mitochondrial DNA haplogroup subclade is found in Ashkenazi Jews and other populations. It is a subclade under haplogroup U'K. ==Origin== According to National Geographic's Genographic Project, K1a1b1a has an unknown origin. The site states, "Though the origin of this lineage is not clear, it is a founding population among some Jewish Diaspora groups. Among Ashkenazi Jews, it is about 19 percent of maternal lineages. Interestingly, it is also present in some Romani populations". Estimates of the age of K1a1b1a vary depending on the mutation rates used. The age of K1a1b1a has been estimated at 4,800 ± 3600 Years Ago, according to the Genographic Project. The K1a1b1a subclade is under the U'K haplogroup and descends from K1a1b1, which is thought to be an 11,500-year-old European subclade of mostly non Jewish origins. Haplogroup K falls under the old U8 grouping. Some of the Basque people of Spain and France fall under the U8a subclade within U8. K1a1b1a is a U8b subclade within U8, with several downstream variations. Ötzi, a mummy who was found September 1991 in the Ötztal Alps, is subclade K1ö for Ötzi. It is interesting to note that Ötzi has mtDNA marker 10978 in common with the Ashkenazi population and others who fall under the K1a1b1a subclade. A new study and recent updates to the mtDNA tree uses three markers to define K1a1b1a, (114), 10978 and 16234. The marker 12954 along with the previous three markers mentioned, are used to define a new mtDNA subclade called K1a1b1a1. This new group consists of people who are either Ashkenazi or of non Ashkenazi European ancestry. 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 K1a1b1a (mtDNA)」の詳細全文を読む スポンサード リンク
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