Origins
Haplogroup J-P209 is believed to have arisen roughly 30,000 years ago in Southwest Asia (possibly in Arabia Felix) (31,700±12,800 years ago according to Semino et al.. 2004). It is most closely related to Haplogroup I, as both Haplogroup I and Haplogroup J-P209 have mutations in common deriving from Haplogroup IJ (S2, S22). Haplogroup IJ and haplogroup K derive from Haplogroup IJK (L15/S137, L16/S138), and only at this level of classification does haplogroup IJK join with Haplogroup G and Haplogroup H as immediate descendants of Haplogroup F. J-P209 is defined by the 12f2.1 genetic marker, or the equivalent M304 marker. The main current subgroups J-M267 and J-M172, which now comprise between them almost all of the population of the haplogroup, are both believed to have arisen very early, at least 10,000 years ago. Nonetheless, Y-chromosomes F-M89* and IJ-M429* were reported to have been observed in the Iranian plateau.
Read more about this topic: Haplogroup J (Y-DNA)
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