Its shallow. The average frequency of Haplogroup J is highest in the Near East (

Its shallow. The average frequency of Haplogroup J is highest in the Near East (12%), followed by Europe (11%), the Caucasus (8%), and Northeast Africa (6%). Like most human genetic innovation it is 45k years old. The effect consists of contribution of anatolians to coastal Neolithic farmer expansion. Secondly by ancient era coastal trade, and third by early muslim conquest and Mediterranean piracy, and muslim slave trade in Europeans. Since it is before the Persian Gulf Deluge and the Black sea deluge I suspect it originates between today’s Yemen and the rivers of the then dry Persian gulf, and spreads as far as I know around the ring of population centers between the various seas and the Arabian desert – whose general name I have forgotten. The main expansion is iranic (south eurasian). The afro asiatic arab much later.

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