Human Y chromosome DNA grouping indicating common ancestry
This article is about the human Y-DNA haplogroup. For the human mtDNA haplogroup, see Haplogroup K (mtDNA).
Haplogroup K
Possible time of origin
55,000-50,000
Possible place of origin
LT
Defining mutations
M9, P128/PF5504, P131/PF5493, P132/PF5480
Haplogroup K or K-M9 is a genetic lineage within
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
.
The direct descendants of Haplogroup K1 (L298 = P326, also known as LT) and K-M9 are Haplogroup K2 (formerly KxLT; K-M526).[4][5]
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.).[34] 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 [35]
K2a* - found only in the remains of Ust'-Ishim man, dating from approximately 45,000 BP and found in Omsk Oblast, Russia.[11] (These remains were initially classified, erroneously, as K2*.)
from the original on 11 December 2023. Given the widespread distribution of K, it probably arose somewhere in the Middle East or Central Asia, perhaps in the region of Iran or Pakistan.
. In the past, other haplogroups, including NO (M214) and K2e had also been identified with the name "K2a".
^ Haplogroup K2b (M1221/P331/PF5911) is also known as Haplogroup MPS.
^ Haplogroup K2e (K-M147) was previously known as "Haplogroup X" and "K2a" (but is a sibling subclade of the present K2a).
^K-M2313*, which as yet has no phylogenetic name, has been documented in two living individuals, who have ethnic ties to India and South East Asia. In addition, K-Y28299, which appears to be a primary branch of K-M2313, has been found in three living individuals from India. See: Poznik op. cit.; YFull YTree v5.08, 2017, "K-M2335", and; PhyloTree, 2017, "Details of the Y-SNP markers included in the minimal Y tree" (Access date of these pages: 9 December 2017)
^ Haplogroup K2b1 (P397/P399) is also known as Haplogroup MS, but has a broader and more complex internal structure.