ハプログループB (Y染色体)

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。

ハプログループBの分布

ハプログループBを含むアフリカ大陸のY染色体ハプログループの移動

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^[1]-72%^[2]、ハザ人に52^[3]-60%^[4]、ヌエル族に50%^[5]、ムブティ族に33^[6]-60%^[2]、アカ族に35^[6]-55%^[2]などである。

下位系統

YCC 2008 tree^[7] より

B
- B-M60 (M60, M181, P85, P90)
  - B-M236 (M236, M288)
    - B-M236 (M236)
  - B-M182 (M182)
    - B-M150 (M150)
      - B-M218 (M218)
        B-M109 (M109, M152, P32)
        
        B-G1 (G1)
      - B-M108.1 (M108.1)
        B-P111 (P111, M43)
    - B-M112 (M112, M192, 50f2(P))
      - B-P6 (P6)
      - B-M115 (M115, M169)
      - B-M30 (M30, M129)
        B-M108.2 (M108.2)
      - B-P7 (P7)
        B-P8 (P8, P70)
        
        B-MSY2.1 (MSY2.1, M211)
    - B-P112 (P112)

ヒトのY染色体ハプログループの系統樹
	Y染色体アダム (Y-MRCA)
		A0	A1
			A1a	A1b
				A1b1	BT
					B	CT
								DE	(CF)
							D	E	C	F
											G	H	(IJK)
														(IJ)		K
													I		J			K1	K2
																	L	T	MS	NO	P	K2*
																					N	O	Q	R
Y染色体の民族別構成（英語）民族別構成 (東アジア) (日本人のY-DNA) 言語分布との関係

脚注

^ 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
^ ^a ^b ^c 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)
^ 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).
^ 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
^ 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).
^ ^a ^b 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.
^ Karafet TM, Mendez FL, Meilerman MB, Underhill PA, Zegura SL, Hammer MF (2008). “New binary polymorphisms reshape and increase resolution of the human Y chromosomal haplogroup tree”. Genome Research 18 (5): 830–8. doi:10.1101/gr.7172008. PMC 2336805. PMID (18385274).

この項目は、生物学に関連した(書きかけの項目)です。この項目を加筆・訂正などしてくださる(協力者を求めています)（プロジェクト:生命科学／(Portal:生物学)）。

[1] 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

[#1-2] 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)

[3] 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).

[4] 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

[5] 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).

[#2-6] 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.

[Karafet-7] Karafet TM, Mendez FL, Meilerman MB, Underhill PA, Zegura SL, Hammer MF (2008). “New binary polymorphisms reshape and increase resolution of the human Y chromosomal haplogroup tree”. Genome Research 18 (5): 830–8. doi:10.1101/gr.7172008. PMC 2336805. PMID (18385274).

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