Nah because yaz was 50% proto iranic 50% bmac itself. Iranics have up to 20% original iranic ancestry MAX. No more than that.
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IF proto-Iranics came from SouthCentral Asia then Yaz was 100% proto-Iranic (ARYAN).
I still believe that the Medes were just native to Kurdistan and were the same as the Iron_Age Hassanlu ARYANS, but let say the Medes came from Yaz. If the Medes came from Yaz then Kurds have more than +35% of SouthCentral Asian (Yaz) ancestry.
The Aryan Medes were related to the Hurrians anyway if we assume that the Iron_Age Hassanlu folks were Hurrian (Mannaeans). Because Yaz people were for a huge part of a Caucaso-Iranic (CHG/Iran_ChL) racial stock themselves anyway. So in Kurdish case it doesn't really matter. Kurds kept the majority of their ancient (CHG/Irn_ChL) DNA.
The 'Iron_Age Hassanlu' and the 'Iron_Age Yaz' people were related for sure.
There is a genetic gradient of steppe ancestry from Central Asian Iranics to West and South Asian which clearly shows the migration route of early Iranic peoples.
I think if Porto-Iranians/Proto-IEs had emerged in Westasia, they would never have the chance to spread around whole Eurasia, before this would have happened they probably would be swallowed by the other groups there who were definitely too dominant. Main reason of IE-spread were horses too, not domesticated by them but without this animal they wouldn't have conquered all this lands.
Not, who is saying it was proto-Iranic? I heard some theories that there was some connection between proto-Indo-Iranian and proto-Uralic. Proto-Uralic was older than proto-Iranic, so what you are saying doesn't make any sense.
There were also a couple migration waves from BMAC into the Steppes. BMAC was older than Andronovo culture.
https://i.postimg.cc/c4Ryv3Wt/abe4414-f4.jpg
https://www.science.org/doi/10.1126/sciadv.abe4414
What do you mean?
The Medes were ARYAN people, that's a fact. Suppose the Medes (as Western Iranics) were not native to Kurdistan and arrived in Kurdistan from SouthCentral Asia, more precisely from the Yaz area. The Medes (Western Iranics) themselves had NOTHING to do with the Andronovo Horizon.
At the end, it doesn't even matter where those Medes came from in the first place. Why? If they were native to Kurdistan they would be CHG (Iron_Age Hasanlu) and even if they were from BMAC they would be also mostly CHG, since BMAC was CHG/Irn_ChL derived itself. So no matter how you look at it, the Medes as ARYAN people (Western Iranics) were mostly related to the ancient CHG people (Northwestern Asians).
CHG (Irn_ChL) has been related to the proto-Indo-Europeans and later Iranics (Western and Eastern) from the very beginning of their respective origins
I am sure that if the Medes were from YAZ, they made Kurds even more CHG/Iran_ChL, because CHG/Irn_ChL was less diluted in SouthCentral Asia than CHG in West Asia.
Kurds have more CHG/Irn_ChL than Armenians, and that thanks to the Medes!
CHG/Irn_ChL = ARYAN