Haplogroup K2, also known as K-M526 and formerly known as K(xLT) and MNOPS,[4] is a human Y-DNA haplogroup.
Relative to its age, the internal structure of K2 is extremely complex, and subclades of it are carried by males native to regions including Australasia, Oceania, Southeast Asia, South Asia, East Asia, Central Asia, the Americas, Europe, and the Horn of Africa. Many of its branches are very common, the most numerically important being R in Europe and South Asia and O in East and Southeast Asia (as well as recent immigrants to other continents). Haplogroups N and Q, while they are less common overall, are also very widespread, in northern Eurasia and the Americas respectively. M and S are almost entirely restricted to Oceania and eastern Indonesia, where they occur at high frequency.
Ust'-Ishim man belongs to Y-DNA haplogroup K2. The two subclades of K2 are K2a and K2b, and he has been found to be positive for some but not all SNPs of the K2a (or NO*) subclade, such as M2308.[4][5][6] In the original paper, he was classified only as Haplogroup K-M9 (KxLT).
K2a* has been found only in Upper Paleolithic remains from western Siberia and the Balkans, known respectively as "Ust'-Ishim man" and "Oase-1".[6] The only primary branch of K2a, known as K-M2313*, has been documented in two living individuals, who have ethnic ties to South Asia and South East Asia respectively: a Telugu from India and an ethnic Malay from Singapore. In addition, K-Y28299, which appears to be a primary branch of K-M2313, has been found in three living individuals from India.[7] Another subclade, NO (M214)* – which for a time was thought to be synonymous with K2a (M2308)* – has not been identified in living individuals or remains.
Basal paragroup K2b* has not been identified among living males but was found in Upper Paleolithic Tianyuan man from China.[8] K2b1 (P397/P399) known previously as Haplogroup MS, and Haplogroup P (P-P295), also known as K2b2 are the only primary clades of K2b.
LT - branches
Haplogroup L-M20 is a human Y-DNA haplogroup, which is defined by SNPs M11, M20, M61 and M185. As a secondary descendant of haplogroup K and a primary branch of haplogroup LT, haplogroup L currently has the alternative phylogenetic name of K1a, and is a sibling of haplogroup T (a.k.a. K1b).
Haplogroup P (branch of K)
Haplogroup P also known as P-F5850 or K2b2 is a Y-chromosome DNA haplogroup in human genetics. P-F5850 is a branch of K2b (previously Haplogroup MPS; P331), which is a branch of Haplogroup K2 (K-M526).
The haplogroup K2b splits into K2b1 (haplogroup MS*) and K2b2 (haplogroup P-F580, Y-DNA P*). Basal P* (P-PF5850*) is found in Southeast Asia.[5][6] The primary branches (clades) of P-F580 are P-P295 (P1a, formerly P*) which is found among South and Southeast Asians as well as Oceanians, P-FT292000 (P1b, formerly P3) with unknown distribution, and P-M45 (P1c, formerly P1) commonly found among Siberians and Central Asians.[5][7] P-M45 (P1c) is, in turn, the parent node of Haplogroup Q (Q-M242) and Haplogroup R (R-M207).
The major subclades of Haplogroups P-M45, Q and R now include most males among Europeans, Native Americans, South Asians and Central Asians.
Relative to its age, the internal structure of K2 is extremely complex, and subclades of it are carried by males native to regions including Australasia, Oceania, Southeast Asia, South Asia, East Asia, Central Asia, the Americas, Europe, and the Horn of Africa. Many of its branches are very common, the most numerically important being R in Europe and South Asia and O in East and Southeast Asia (as well as recent immigrants to other continents). Haplogroups N and Q, while they are less common overall, are also very widespread, in northern Eurasia and the Americas respectively. M and S are almost entirely restricted to Oceania and eastern Indonesia, where they occur at high frequency.
Ust'-Ishim man belongs to Y-DNA haplogroup K2. The two subclades of K2 are K2a and K2b, and he has been found to be positive for some but not all SNPs of the K2a (or NO*) subclade, such as M2308.[4][5][6] In the original paper, he was classified only as Haplogroup K-M9 (KxLT).
K2a* has been found only in Upper Paleolithic remains from western Siberia and the Balkans, known respectively as "Ust'-Ishim man" and "Oase-1".[6] The only primary branch of K2a, known as K-M2313*, has been documented in two living individuals, who have ethnic ties to South Asia and South East Asia respectively: a Telugu from India and an ethnic Malay from Singapore. In addition, K-Y28299, which appears to be a primary branch of K-M2313, has been found in three living individuals from India.[7] Another subclade, NO (M214)* – which for a time was thought to be synonymous with K2a (M2308)* – has not been identified in living individuals or remains.
Basal paragroup K2b* has not been identified among living males but was found in Upper Paleolithic Tianyuan man from China.[8] K2b1 (P397/P399) known previously as Haplogroup MS, and Haplogroup P (P-P295), also known as K2b2 are the only primary clades of K2b.
LT - branches
Haplogroup L-M20 is a human Y-DNA haplogroup, which is defined by SNPs M11, M20, M61 and M185. As a secondary descendant of haplogroup K and a primary branch of haplogroup LT, haplogroup L currently has the alternative phylogenetic name of K1a, and is a sibling of haplogroup T (a.k.a. K1b).
Haplogroup P (branch of K)
Haplogroup P also known as P-F5850 or K2b2 is a Y-chromosome DNA haplogroup in human genetics. P-F5850 is a branch of K2b (previously Haplogroup MPS; P331), which is a branch of Haplogroup K2 (K-M526).
The haplogroup K2b splits into K2b1 (haplogroup MS*) and K2b2 (haplogroup P-F580, Y-DNA P*). Basal P* (P-PF5850*) is found in Southeast Asia.[5][6] The primary branches (clades) of P-F580 are P-P295 (P1a, formerly P*) which is found among South and Southeast Asians as well as Oceanians, P-FT292000 (P1b, formerly P3) with unknown distribution, and P-M45 (P1c, formerly P1) commonly found among Siberians and Central Asians.[5][7] P-M45 (P1c) is, in turn, the parent node of Haplogroup Q (Q-M242) and Haplogroup R (R-M207).
The major subclades of Haplogroups P-M45, Q and R now include most males among Europeans, Native Americans, South Asians and Central Asians.