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Probably from Oghuz Turkish regardless, but I wouldn't rule out older Turkic tribes that came from the north like Cumans, Pechenegs or even Bulgars. I think Crimean Tatars moved immediately into Turkey recently and hadn't made it that south in the west coast of the Black Sea. I am not sure. The mobilization of Central Asian groups was so great that we find Q-M346 even in Comoros Islands.
Genetic history of the Turkish people, shows that the common ancestor Ertuğrul of the Kayı tribe, belonged to haplogroup: R1a=6.9% - Typical of Central Asian, Caucasus, Eastern Europeans and Indo-Aryan people.
The subclade Q2a1 was acquired by a population ancestral to Ashkenazi Jewish. Ukraine has a certain frequency of Q around 0.5-4% inherited from Khazars, Huns, Tatars or Cumans etc. The Khazars in Ukraine had converted to Qaraite Judaism. Or maybe some time Qaraite Jews were mistaken for descendants of Khazars there. In any case, the origin of Q-L275 is of course in south-west or south Asia, where is the biggest diversity and frequency. But Ukraine has some Q-L275, supposedly from Khazars, Hazara in Afghanistan also have Q-L275, so there is at least some relationship between this haplogroup and Khazars. There are more details in this research Phylogeography of human Y-chromosome haplogroup Q3-L275 from an academic/citizen science collaboration
I have to add that I hold only Q-M25 to have a genetic relationship with Turkic language family, or call it Oghur/Oghuz if you will, while referring to the other subclades of Q only as per to their occurrence in various Turkic groups. Q is a very old haplogroup and spread across many ethnic groups.
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