Haplogroup O-M175

Haplogroup O-M175
Possible time of origin	41,750 (95% CI 30,597<-> 46,041) years ago[1] 44,700 or 38,300 ybp[2]
Coalescence age	33,943 (95% CI 25,124 <-> 37,631) years (Karmin 2022[1]) 35,000 or 30,000 years ago depending on mutation rate[2]
Possible place of origin	Southeast Asia or East Asia
Ancestor	NO
Descendants	Primary: O1 (O-F265); O2 (O-M122)  Secondary: O1a (O-M119); O1b (O-M268); O2a (O-M324); O2b (O-F742)
Defining mutations	M175 (+ numerous other SNPs).[3]

Haplogroup O, also known as O-M175, is a human Y-chromosome DNA haplogroup. It is primarily found among populations in Southeast Asia and East Asia. It also is found in various percentages of populations of the Russian Far East, South Asia, Central Asia, Caucasus, Crimea, Ukraine, Iran, Oceania, Madagascar and the Comoros. Haplogroup O is a primary descendant of haplogroup NO-M214.

The O-M175 haplogroup is very common amongst males from East and Southeast Asia. It has two primary branches: O1 (O-F265) and O2 (O-M122). O1 is found at high frequencies amongst males native to Southeast Asia, Taiwan, the Japanese Archipelago, the Korean Peninsula, Madagascar and some populations in southern China and Austroasiatic speakers of India. O2 is found at high levels amongst Han Chinese, Tibeto-Burman populations (including many of those in Yunnan, Tibet, Burma, Northeast India, and Nepal), Manchu, Mongols (especially those who are citizens of the PRC), Koreans, Vietnamese, Filipinos, Japanese, Thais, Polynesians, Miao people, Hmong, the Naiman tribe of Kazakhs in Kazakhstan,^[4] Kazakhs in the southeast of Altai Republic,^[5] and Kazakhs in the Ili area of Xinjiang.^[6]