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Version History Last revision date for this specific page: 12 March 2014
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 Alice Fairhurst 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 2013 tree Confirmed within subclade Provisional Private Investigation|
Contact Person for Haplogroup K: Gareth Henson
K M9, P128/PF5504,
• K* -
• K(xLT) M526/PF5979
• • K(xLT)* -
• • K1 P60
• • K2 P79, P299
• • K3 P261, P263
Private SNPs - After having been investigated, these SNPs have not met the population distribution criteria for placement on the tree. Either too few confirmed positive testers have been found OR multiple confirmed testers were confined to either a single surname or to a small group of related males.
SNPs under Investigation - Additional testing is needed to confirm adequate positive samples and/or correct placement on the tree.
Y-DNA haplogroup K is an old lineage established approximately 40,000
thousand years ago whose origins were probably in southwestern
Asia. At present this group contains two distinct
classes of subgroups: (1) major groups L to T
(refer to the main tree at Y-DNA Haplogroup Tree)
and (2) minor groups K* and K1 to K4 which do not have any of the SNPs defining
the major groups. These groups are found at low frequencies in various parts
of Africa, Eurasia, Australia and the South Pacific.
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