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Haplogroup O-M176
In human population genetics, Y-Chromosome haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Haplogroup O-M176 (aka O-SRY465) is a human Y-chromosome DNA haplogroup. It is best known for its part in the settlement of Korea and Japan. It is a descendant of Haplogroup O-P31.
==Distribution==
Haplogroup O-M176 is found mainly in the northernmost parts of East Asia, from the Uriankhai and Zakhchin peoples of western Mongolia to the Japanese of Japan, though it also has been detected sporadically in the Buryats and Udegeys of southern Siberia, very rarely among populations of Southeast Asia including Indonesia ( and ), the Philippines , Thailand , and Vietnam ( and ), and Micronesians . This haplogroup is found with its highest frequency and diversity values among modern populations of Japan and Korea and is absent from most populations in China, but it has been detected in some samples of Han Chinese from Beijing , Xi'an (1/34, ), Jiangsu , Wuhan (1/160),〔Huang Dai-Xin, Yang Qing-En, Yin Hui ''et al.'', "Genetic Polymorphism of 23 Y Chromosome Biallelic Markers in Wuhan Han Population," ''HEREDITAS'' (Beijing) 28 (7) 791~798, 2006〕 South China outside of Jiangsu, Anhui, Zhejiang, and Shanghai (1/65), and Taiwan (1/34 Hakka and 1/258 other miscellaneous Han),〔Jean A Trejaut, Estella S Poloni, Ju-Chen Yen ''et al.'' (2014), "Taiwan Y-chromosomal DNA variation and its relationship with Island Southeast Asia." ''BMC Genetics'' 15:77. http://www.biomedcentral.com/1471-2156/15/77〕 and Daurs , Hezhes , Koreans in China ( and ), Manchus (, , and ), Sibes , and Kham Tibetans.〔Wang C-C, Wang L-X, Shrestha R, Zhang M, Huang X-Y, ''et al.'' (2014) "Genetic Structure of Qiangic Populations Residing in the Western Sichuan Corridor." ''PLoS ONE'' 9(8): e103772. doi:10.1371/journal.pone.0103772〕
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