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Haplogroup IJ (Y-DNA)



In human genetics, Haplogroup IJ (S2, S22) is a human Y-chromosome DNA haplogroup. Haplogroup IJ is a descendant branch of the greater Haplogroup F (M89, P14, M213).

It is notable that no example of a Haplogroup IJ* Y-chromosome has been found among any modern human population; the existence of the Haplogroup IJ node has been inferred from the fact that certain mutations are shared in common among all Y-chromosomes belonging to the descendant haplogroups I and J. The lack of any examples of Haplogroup IJ* belonging to neither Haplogroup I nor Haplogroup J complicates any attempt to deduce the geographical location where Haplogroup IJ first appeared; however, the fact that both Haplogroup I and Haplogroup J are found among modern populations of the Caucasus, Anatolia, and Southwest Asia tends to support the hypothesis that Haplogroup IJ derived from Haplogroup F in the vicinity of West Asia or the Middle East and subsequently spread throughout Western Eurasia.

See also

Human Y-chromosome DNA (Y-DNA) haplogroups

Y-most recent common ancestor
|
A BR
B CR
DE CF
D E C F
G H IJ K
I J L M NO P
N O Q R
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Haplogroup_IJ_(Y-DNA)". A list of authors is available in Wikipedia.
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