Haplogroup IJ (Y-DNA)
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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).
Distribution
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
- Haplogroup
- Human Y-chromosome DNA haplogroups
- Haplogroup I (Y-DNA)
- Haplogroup J (Y-DNA)
- Haplogroup I1a (Y-DNA)
- Haplogroup I1b (Y-DNA)
- Haplogroup J2 (Y-DNA)
| 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 | |||||||||||||||||||
