Haplogroup O-P31

Haplogroup O-P31
Ancestor	O-M175
Defining mutations	P31, M268

In human genetics, Haplogroup O-P31 is a Y-chromosome DNA haplogroup. Haplogroup O-P31 is a descendant branch of the greater Haplogroup O-M175.

Distribution

Haplogroup O-P31 is notable for the peculiarities of its geographical distribution. Like all clades of Haplogroup O-M175, Haplogroup O-P31 is found only among the males of modern Eastern Eurasian populations. However, Haplogroup O-P31 is generally found only among certain populations, such as the Austroasiatic peoples of India, Bangladesh and Southeast Asia, the Nicobarese of the Nicobar Islands in the Indian Ocean, Koreans, and Japanese.

Besides its widespread and patchy distribution, Haplogroup O-P31 is also notable for the fact that it can be divided into two major subclades that show almost completely disjunct distribution. One of these subclades, Haplogroup O-M95, is found among some (mostly tribal) populations of South and Southeast Asia, as well as among the Khmers of Cambodia and the Balinese of Indonesia. The other major subclade, Haplogroup O-M176, is found almost exclusively among the Japanese, Koreans, and some Manchurians.

Phylogenetics

Phylogenetic History

Main article: Conversion table for Y chromosome haplogroups

Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome Phylogenetic tree. This led to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They published a joint paper that created a single new tree that all agreed to use. Later, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely. The table below brings together all of these works at the point of the landmark 2002 YCC Tree. This allows a researcher reviewing older published literature to quickly move between nomenclatures.

YCC 2002/2008 (Shorthand)	(α)	(β)	(γ)	(δ)	(ε)	(ζ)	(η)	YCC 2002 (Longhand)	YCC 2005 (Longhand)	YCC 2008 (Longhand)	YCC 2010r (Longhand)	ISOGG 2006	ISOGG 2007	ISOGG 2008	ISOGG 2009	ISOGG 2010	ISOGG 2011	ISOGG 2012
O-M175	26	VII	1U	28	Eu16	H9	I	O*	O	O	O	O	O	O	O	O	O	O
O-M119	26	VII	1U	32	Eu16	H9	H	O1*	O1a	O1a	O1a	O1a	O1a	O1a	O1a	O1a	O1a	O1a
O-M101	26	VII	1U	32	Eu16	H9	H	O1a	O1a1	O1a1a	O1a1a	O1a1	O1a1	O1a1a	O1a1a	O1a1a	O1a1a	O1a1a
O-M50	26	VII	1U	32	Eu16	H10	H	O1b	O1a2	O1a2	O1a2	O1a2	O1a2	O1a2	O1a2	O1a2	O1a2	O1a2
O-P31	26	VII	1U	33	Eu16	H5	I	O2*	O2	O2	O2	O2	O2	O2	O2	O2	O2	O2
O-M95	26	VII	1U	34	Eu16	H11	G	O2a*	O2a	O2a	O2a	O2a	O2a	O2a	O2a	O2a	O2a1	O2a1
O-M88	26	VII	1U	34	Eu16	H12	G	O2a1	O2a1	O2a1	O2a1	O2a1	O2a1	O2a1	O2a1	O2a1	O2a1a	O2a1a
O-SRY465	20	VII	1U	35	Eu16	H5	I	O2b*	O2b	O2b	O2b	O2b	O2b	O2b	O2b	O2b	O2b	O2b
O-47z	5	VII	1U	26	Eu16	H5	I	O2b1	O2b1a	O2b1	O2b1	O2b1a	O2b1a	O2b1	O2b1	O2b1	O2b1	O2b1
O-M122	26	VII	1U	29	Eu16	H6	L	O3*	O3	O3	O3	O3	O3	O3	O3	O3	O3	O3
O-M121	26	VII	1U	29	Eu16	H6	L	O3a	O3a	O3a1	O3a1	O3a1	O3a1	O3a1	O3a1	O3a1	O3a1a	O3a1a
O-M164	26	VII	1U	29	Eu16	H6	L	O3b	O3b	O3a2	O3a2	O3a2	O3a2	O3a2	O3a2	O3a2	O3a1b	O3a1b
O-M159	13	VII	1U	31	Eu16	H6	L	O3c	O3c	O3a3a	O3a3a	O3a3	O3a3	O3a3a	O3a3a	O3a3a	O3a3a	O3a3a
O-M7	26	VII	1U	29	Eu16	H7	L	O3d*	O3c	O3a3b	O3a3b	O3a4	O3a4	O3a3b	O3a3b	O3a3b	O3a2b	O3a2b
O-M113	26	VII	1U	29	Eu16	H7	L	O3d1	O3c1	O3a3b1	O3a3b1	-	O3a4a	O3a3b1	O3a3b1	O3a3b1	O3a2b1	O3a2b1
O-M134	26	VII	1U	30	Eu16	H8	L	O3e*	O3d	O3a3c	O3a3c	O3a5	O3a5	O3a3c	O3a3c	O3a3c	O3a2c1	O3a2c1
O-M117	26	VII	1U	30	Eu16	H8	L	O3e1*	O3d1	O3a3c1	O3a3c1	O3a5a	O3a5a	O3a3c1	O3a3c1	O3a3c1	O3a2c1a	O3a2c1a
O-M162	26	VII	1U	30	Eu16	H8	L	O3e1a	O3d1a	O3a3c1a	O3a3c1a	O3a5a1	O3a5a1	O3a3c1a	O3a3c1a	O3a3c1a	O3a2c1a1	O3a2c1a1

Original Research Publications

The following research teams per their publications were represented in the creation of the YCC Tree.

3

Phylogenetic Trees

This phylogenetic tree of haplogroup O subclades is based on the YCC 2008 tree (Karafet 2008) and subsequent published research.

• O-P31 (P31, M268)
  • O-M95 (M95)
    • O-M88 (M88, M111)
  • O-P49 (SRY465, P49, 022454)
    • O-47z (47z)

See also

Genetics

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Y-DNA O Subclades

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Y-DNA Backbone Tree

Evolutionary tree of human Y-chromosome DNA haplogroups
	"Y-chromosomal Adam"
		A00	A0-T
			A0	A1
				A1a	A1b
					A1b1		BT
						B	CT
							DE						CF
						D	E		C		F
															F1	F2		F3	GHIJK
																				G	HIJK
																						H	IJK
																							IJ	K
																						I	J		LT		K2
																										L	T		NO	K2b	K2c	K2d		K2e
																													N	O		K2b1	P
																																	M	S		Q	R
Y-DNA by populations Famous Y-DNA haplotypes

References

Works Cited

Journals

Websites