Saturday, July 20, 2024

The Genetic History of J2a-Z6065

J2-Z6065 is the third most frequent branch of J2a in Armenia, after M67 and L25. Its initial homeland was almost certainly situated in historic Armenia. Currently, the oldest Z6065 sample comes from ancient Armenia, specifically the Neolithic site of Masis Blur. It was absent from early Anatolian and European farmers and even missing or rare in ancient Minoans, suggesting that Z6065 has a slightly more eastern homeland compared to M67 and M319, with which it shares a common ancestor.
J2-Z6065 has two important sub-branches:

**Y13341 / FGC15782**: Like most haplotypes that formed in historic Armenia, Z6065 benefited from expansions during the Chalcolithic period, moving westward towards Anatolia. It was found at the Ilipinar site in Anatolia and in the Urmia basin at Dinkha Tepe. However, its most successful expansion began in the Middle Bronze Age (4300 year ago). The subclade Z6065>YP879 was apparently part of the Van-Urmia culture and expanded with it and the affiliated Karmir-berd culture. YP879 was found in the ancient Urartian city of Sardurihinili and in Late Bronze Age Keti, modern Armenia. Today, YP879 constitutes 2.5% of the Y-DNA of modern Armenians.

**Y7687**: This sub-branch likely has a similar history to the first one, but its two successful subclades are related to different events. The Y7687>Z43661 is probably related to Bronze Age Anatolia, and there is a strong possibility that it was a Hittite-Luwian branch. Ancient DNA from the Bronze Age Anatolian site in Ovaoren supports this theory. This branch is well represented in Turkey and Armenia. 
M47 has a very different distribution, being prevalent among Gulf Arabs and Iranians. M47 expanded during the Bronze Age but also has more recent expansions. The historic events related to this expansion are unknown due to the absence of ancient DNA. One possible theory is that it was initially a Kassite lineage that later became part of Iranian tribes and Semites.




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