Haplogroup K-M9

This article is about the human Y-DNA haplogroup. For the human mtDNA haplogroup, see Haplogroup K (mtDNA).

Haplogroup K or K-M9 is a genetic lineage within human Y-chromosome DNA haplogroup. A sublineage of haplogroup IJK, K-M9, and its descendant clades represent a geographically widespread and diverse haplogroup. The lineages have long been found among males on every continent except Antarctica.

Haplogroup K
Possible time of origin	55,000-50,000
Possible place of origin	West Asia, Central Asia,[1][2][3] or Southeast Asia[4][5]
Ancestor	IJK
Descendants	K2,[6] LT
Defining mutations	M9, P128/PF5504, P131/PF5493, P132/PF5480

The direct descendants of Haplogroup K1 (L298 = P326, also known as LT) and K-M9 are Haplogroup K2 (formerly KxLT; K-M526).^[6][7]

Origins and distribution

Y-DNA haplogroup K-M9 is an old lineage that arose approximately 47,000-50,000 years ago.^[8] Geneticist Spencer Wells had argued that because haplogroup K has a geographically wide distribution, the lineage probably originated near the central part of this range in the Middle East or Central Asia, possibly in Iran or Pakistan.^[1][2][3]

Basal K* is exceptionally rare and under-researched; while it has been reported at very low frequencies on many continents it is not always clear if the examples concerned have been screened for subclades.^[6][9] Confirmed examples of K-M9* now appear to be most common amongst some populations in Island South East Asia and Melanesia.^[10][11][12]

Primary descendants of haplogroup LT are L (M20), also known as K1a, and T (M184), also known as K1b.^[6][7]

The descendants of haplogroup K2 include:

• K2a (detected in Paleolithic specimens Oase1 and Ust'-Ishim),^[13] the subclades of which include the major haplogroups N and O,^[14] and;
• K2b – the ancestor of haplogroups M, P, Q, R, S.^[15]

Structure

Haplogroup K-M9 tree ^{[6][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]}

	LT (L298; a.k.a. K1) has never been found in basal form (LT*). Subclades are widely distributed at low concentrations. Haplogroup L is found at its highest frequency in India, Pakistan and among the Baloch of Afghanistan. T is most common among: Fulanis, Toubou, Tuareg, Somaliland, Egyptians, some Middle East,[35] the Aegean Islands and among Kurru, Bauris and Lodha in India.
K2	K2* (M526) has been found in an estimated 27% of indigenous Australians (based on large scale surveys in which 56% of the samples were assumed to be non-indigenous.).[36] According to Mark Lipson et al.(2014), from MIT – Massachusetts Institute of Technology, United States Of America, from his jurnal: "New  statistical  genetic methods for elucidating the history and evolution of human populations”, K2* (M526) has also been found in Toba-Batak and Mandar in an estimated 14%. Only Toba Batak and Mandar have K2* (M526) from indigenous Sunda land [37] K2a (K-M2308)[13] K2a* - found only in the remains of Ust'-Ishim man, dating from approximately 45,000 BP and found in Omsk Oblast, Russia.[13] (These remains were initially classified, erroneously, as K2*.) K-M2313* K-M2313*[13] – so far found only in one Telugu male and one ethnic Malay, and ancient Oase-1. NO (M214; a.k.a. K2a2) – The two primary branches of NO include the major haplogroups: • N, which is found mainly in populations across Northern Eurasia (and at lower frequencies in regions including East Asia, Central Asia, Southeast Asia, Anatolia, and Southeast Europe) and; • O, which is now numerically dominant among males from East Asia, Southeast Asia, and the Pacific Islands. K2b (P331) K2b1 S (B254) which is numerically dominant in the highlands of Papua New Guinea;[38] subclades of S1, such as S1a3 (P315) and S1a1a1 (P308),[39] have also been reported at levels of up to 27% among indigenous Australians, while[36] S1a (P405; previously K2b1a) has also been found at significant levels in other parts of Oceania. S2 (P336; previously K2b1b) has been found on Alor, Timor and Borneo and; S3 (P378; previously K2b1c) found among Aeta people of the Philippines. M (P256, Page93/S322) a.k.a. K2b1b (previously K2b1d) is the most common haplogroup in both West Papua and Papua New Guinea; also found in Australia,[36] and neighbouring parts of Melanesia and Polynesia. P (K2b2) P* (K2b2*) 28% of Aeta (Philippines), 10% in Timor P1*(M45/PF5962) P1* 22.2–35.4% in Tuvans, Kizhi, Todjins and also in Andamanese_peoples of India Q (M242) Native Americans and Siberia/Central Asia (Kets, Selkups, Altai, Tuvans, Xirong, Mongolian Altai Kurgans) R* found only in remains from 24,000 years BP at Mal'ta' in Siberia R2 found in South Asia and parts of Central Asia, Caucasus and the Middle East R1a found in Eastern Europe, South Asia, Central Asia, and Scandinavia. Ancient samples include 10 out of 11 samples from Xiaohe Tomb complex, Andronovo, Pazyryk, Mongolian Altai Kurgans (R1a/Z93 mixed with Q1a2a1/L54), The Tagar Culture, Karasuk culture, Tashtyk culture, some Corded ware folk R1b West Europe, Chadic Languages, Banjara tribes of India, Hazaras of Pakistan, Armenian Highlands (Found in several Bell Beakers from Germany and in late antique Basques of whom it is still common in as well as 13.3% (4):one P probably R1b2 (V88): of Guanches from the Canary Islands, (reports of King Tut belonging to R1b, by iGENEA belonging to R1b have not been verified.) K2c (P261). Minor lineage of Bali. K2d (P402). Minor lineage of Java K2e (M147). Highly rare lineage; two cases in South Asia.[40]