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ハプログループB (Y染色体) : ウィキペディア日本語版 | ハプログループB (Y染色体)[はぷろぐるーぷびー] ハプログループB (Y染色体)(ハプログループB (Yせんしょくたい)、英: Haplogroup B (Y-DNA))とは分子人類学において人類の父系を示すY染色体ハプログループ(型集団)の分類で、ハプログループBTの子系統で、M60, M181/Page32, P85, P90, V62, V75, V78, V83, V84, V85, V90, V93, V94, V185, V197, V217, V227, V234, V237, V44の変異によって定義されるグループである。60,000-65,000年前にアフリカで誕生したと考えられる。 ==分布== アフリカのなかでも特にピグミーに高頻度である。バカ族に63〔Gemma Berniell-Lee, Francesc Calafell, Elena Bosch et al., "Genetic and demographic implications of the Bantu expansion: insights from human paternal lineages," Molecular Biology and Evolution Advance Access published April 15, 2009〕-72%〔Elizabeth T Wood, Daryn A Stover, Christopher Ehret et al., "Contrasting patterns of Y chromosome and mtDNA variation in Africa: evidence for sex-biased demographic processes," European Journal of Human Genetics (2005) 13, 867–876. (cf. Appendix A: Y Chromosome Haplotype Frequencies)〕、に52〔Alec Knight, Peter A. Underhill, Holly M. Mortensen et al., "African Y Chromosome and mtDNA Divergence Provides Insight into the History of Click Languages," Current Biology, Vol. 13, 464–473 (March 18, 2003).〕-60%〔Sarah A. Tishkoff, Mary Katherine Gonder, Brenna M. Henn et al. (2007), "History of Click-Speaking Populations of Africa Inferred from mtDNA and Y Chromosome Genetic Variation," Molecular Biology and Evolution 24 (10) : 2180–2195. doi:10.1093/molbev/msm155〕、ヌエル族に50%〔Hisham Y. Hassan, Peter A. Underhill, Luca L. Cavalli-Sforza, and Muntaser E. Ibrahim, "Y-Chromosome Variation Among Sudanese: Restricted Gene Flow, Concordance With Language, Geography, and History," American Journal of Physical Anthropology (2008).〕、ムブティ族に33〔Fulvio Cruciani, Piero Santolamazza, Peidong Shen et al., "A Back Migration from Asia to Sub-Saharan Africa Is Supported by High-Resolution Analysis of Human Y-Chromosome Haplotypes," American Journal of Human Genetics 70:1197–1214, 2002.〕-60%〔Elizabeth T Wood, Daryn A Stover, Christopher Ehret et al., "Contrasting patterns of Y chromosome and mtDNA variation in Africa: evidence for sex-biased demographic processes," European Journal of Human Genetics (2005) 13, 867–876. (cf. Appendix A: Y Chromosome Haplotype Frequencies)〕、に35〔Fulvio Cruciani, Piero Santolamazza, Peidong Shen et al., "A Back Migration from Asia to Sub-Saharan Africa Is Supported by High-Resolution Analysis of Human Y-Chromosome Haplotypes," American Journal of Human Genetics 70:1197–1214, 2002.〕-55%〔Elizabeth T Wood, Daryn A Stover, Christopher Ehret et al., "Contrasting patterns of Y chromosome and mtDNA variation in Africa: evidence for sex-biased demographic processes," European Journal of Human Genetics (2005) 13, 867–876. (cf. Appendix A: Y Chromosome Haplotype Frequencies)〕などである。
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