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Version History Last revision date for this specific page: 1 January 2015
Because of continuing research, the structure of the Y-DNA Haplogroup Tree changes and ISOGG does its best to keep the tree updated with the latest developments in the field. The viewer may observe other versions of the tree on the Web. Email Ray H. Banks if the differences need clarification or if you find any broken links on this page.
|LINKS: Main Page Y-DNA Tree Trunk SNP Index Papers/Presentations Cited Glossary Listing Criteria|
|CLADE/SUBCLADE SYMBOLS: Added Redefined|
|SNP SYMBOLS: Not on 2014 tree Confirmed within subclade Provisional Private Investigation|
The criteria for a representative SNP printed in bold for a subclade is: traditional usage, testing one in multiple labs, and/or being found in the area of the chromosome used in recent research studies.
SNPs listed below in italics (colored black or red) are quality variants from next-generation sequencing reports consistently showing as representing that subgroup.
Paragroups, subclades ending with an asterisk (*) indicate that some individuals do not test positive for any snps downstream. Since this fact is commonly known, paragroups are being omitted to simplify the display of SNPs.
Contact Person for Haplogroup K: Gareth Henson
K M9, P128/PF5504,
• LT or K1 L298/P326, etc.
• • L or K1a M20/PF5570, etc.
• • T or K1b M184/Page34/USP9Y+3178, etc.
• K2 M526/PF5979 -This was previously classified as K(xLT)
• • NO or K2a M214/Page39 etc.
• • • N or K2a1 M231/Page91
• • • O or K2a2 M175 etc.
• • K2b M1221/P331/PF5911
• • • K2b1 P397, P399
• • • • K2b1a P405
• • • • • K2b1a1 P60, P304, P308
• • • • • K2b1a2 P79, P307
• • • • • K2b1a3 P315
• • • • • • K2b1a3a P401
• • • • • S or K2b1a4 M230, etc.
• • • • K2b1b P336
• • • • K2b1c P378
• • • • M or K2b1d P256, etc.
• • • P or K2b2 P295/PF5866/S8, etc.
• • K2c P261, P263
• • K2d P402, P403
• • K2e M147
Y-DNA haplogroup K is an old lineage established approximately 40,000
thousand years ago whose origins were probably in southwestern
Asia. K's structure is interwoven with other haplogroups downstream
(refer to the main tree at Y-DNA Haplogroup Tree).
The subclades restricted to K itself are found at low frequencies in various parts
of Africa, Eurasia, Australia and the South Pacific.
Alonso et al,
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Cruciani et al, A Back Migration from Asia to Sub-Saharan Africa Is Supported by High-Resolution Analysis of Human Y-Chromosome Haplotypes. American Journal of Human Genetics, 70:1197-1214, 2002.
Delfin et al, The Y Chromosome Landscape of the Philippines: Extensive Heterogeneity and Varying Genetic Affinities of Negrito and Non-Negrito Groups. (abstract) European Journal of Human Genetics, 19:224-30, 2011.
Deng et al, Evolution and Migration History of the Chinese Population Inferred from the Chinese Y-chromosome Evidence. (pdf) Journal of Human Genetics, 49:339-348, 2004.
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Xue et al, A Spatial Analysis of Genetic Structure of Human Populations in China Reveals Distinct Difference between Maternal and Paternal Lineages. European Journal of Human Genetics, 16:705-17, 2008.
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