Haplogroup IJK
Human Y-chromosome DNA haplogroup
From Wikipedia, the free encyclopedia
Haplogroup IJK is a human Y-chromosome DNA haplogroup. IJK is a primary branch of the macrohaplogroup HIJK. Its direct descendants are haplogroup IJ and haplogroup K.[2]
| Haplogroup IJK | |
|---|---|
| Possible time of origin | 55,000 BP[1] |
| Coalescence age | 52,900-54,100 BP |
| Possible place of origin | Eurasia |
| Ancestor | Haplogroup HIJK |
| Descendants | IJ, K |
| Defining mutations | L15/S137, L16/S138, L69.1(=G)/S163.1 |
Distribution and structure
IJK has not been reported in modern populations or in ancient human remains. Previously, basal paragroup HIJK* was reported in a Mesolithic European (Magdalenian), GoyetQ-2, and Upper Paleolithic European (Gravettian), Vestonice16.[3] However, in a later study in 2023 with high quality sequencing of Magdalenian, GoyetQ-2, Gravettian, Vestonice16, the ancient human remains were assigned with Haplogroup I.[4]
Populations with high proportions of males who belong to descendant major haplogroups of Haplogroup HIJK live across widely dispersed areas and populations. Subclades of IJK are now concentrated in males native to:
- Europe (e. g. haplogroups I, J, R and N);
- the Caucasus, Near East and North East Africa (e.g. haplogroups J and T);
- South Asia (e.g. haplogroups J, L and R);
- East Asia，Southeast Asia, Oceania, and the Pacific (e. g. haplogroups K, M, O, P, S)
- Northern Eurasia, (e.g. haplogroups N and Q) and;
- Native American peoples (e. g. haplogroup Q and R).
Structure
Basic phylogeny
Phylogenetic tree
| Haplogroup IJK† |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
† = A basal haplogroup that has not been documented among living individuals.
(Based on the YCC 2008 tree and subsequent published research.[8])
Mutation
See also
- Haplogroup
- Human Y-chromosome DNA haplogroups
- Y-chromosome haplogroups in populations of the world
- Y-DNA haplogroups in populations of Europe
- Y-DNA haplogroups in populations of South Asia
- Y-DNA haplogroups in populations of East and Southeast Asia
- Y-DNA haplogroups in populations of the Near East
- Y-DNA haplogroups in populations of North Africa
- Y-DNA haplogroups in populations of the Caucasus
- Y-DNA haplogroups by ethnic group
- Haplogroup IJ (Y-DNA)
- Haplogroup I (Y-DNA)
- Haplogroup J (Y-DNA)
- Haplogroup K (Y-DNA)