单倍群P-P295

单倍群P （或P-P295、K2b2）是一个Y染色体DNA单倍群 。

单倍群P (K2b2)
起源时间	约3.5万 距今[1]
共祖年代	{{{TMRCA}}}
起源地	东南亚 [2][3]
上游单倍群	K2b [4]
下游单倍群	单倍群P1 (P-M45) 以及 单倍群P2 (P-B253). P1是单倍群Q和单倍群R的祖先。
对应突变	P295/PF5866/S8, 92R7_1, 92R7_2, F91/PF5862/V231

起源与分布

单倍群P(K2b2)与单倍群K2b1(SM)共同源于单倍群K2b。P-P295有两个分支：P1 (P-M45)和 P2 (P-B253)。^[5][1]

目前阿埃塔人和安达曼人等有发现P*，虽然在东西伯利亚和中亚都有发现P*，但是P可能起源于东南亚，然后向北边迁移。^[1][6]

P1是单倍群Q和单倍群R的祖先,目前单倍群R主要分布在印欧人、巴斯克人、马扎尔人、巴什基尔人、乌孜别克人、柯尔克孜人、阿尔泰人等，单倍群Q主要分布于美洲原住民、楚科奇人、堪察加人、叶尼塞人、图瓦人、土库曼人等。

P2目前有分布于菲律宾。

其他

人类Y染色体DNA单倍型类群进化树

Y染色体最近共同祖先

A

A1b

A1a-T

A1a

A2-T

A2

A3

BT

B

CT

DE

CF

D

E

C

F

G

H

IJK

IJ

K

I

J

LT

K(xLT)

L

T

M

NO

P

S

O

N

Q

R

各族群Y染色体单倍型类群 · 著名的Y染色体单倍型类群人

参考文献

1. ISOGG, 2016, Y-DNA Haplogroup P and its Subclades – 2016 （页面存档备份，存于互联网档案馆） (20 June 2016).
2. The island of Luzon, in the Philippines is the only known location of P2 (P-B253) and one of only a few locations for P*; it also features P1* (M45). See, for example: Tumonggor, Karafet et al., 2014, "Isolation, contact and social behavior shaped genetic diversity in West Timor", Journal of Human Genetics Vol. 59, No. 9 (September), pp. 494–503, and; E. Heyer et al., 2013, "Genetic Diversity of Four Filipino Negrito Populations from Luzon: Comparison of Male and Female Effective Population Sizes and Differential Integration of Immigrants into Aeta and Agta Communities", Human Biology, Vol. 85, Iss. 1, p. 201
3. Tatiana M Karafet et al. 2015, "Improved phylogenetic resolution and rapid diversification of Y-chromosome haplogroup K-M526 in Southeast Asia", European Journal of Human Genetics, No. 23, pp. 369–373.
4. http://biorxiv.org/content/early/2013/11/22/000802.1
5. That is, Haplogroup K2b1a and M [(K2b1d), are now dominant among males in Melanesia and are also significant in adjoining parts of Oceania and the Malay Archipelago.
6. Moreno-Mayar et Al., Early human dispersals within the Americas （页面存档备份，存于互联网档案馆）, see Supplementary Materials, Table S9. Y chromosome and mtDNA description of new ancient sequences : HistAndaman, Y haplogroup P-295. Included in Yfull tree （页面存档备份，存于互联网档案馆）