Overview
J2a-Y17772 is a downstream lineage of J2a-M67 with a demographic center in the Armenian highlands, eastern Anatolia and northern Mesopotamia. Its early diversification corresponds to the middle Holocene period when upland agro pastoral populations were forming stable settlement clusters along the Upper Tigris and Euphrates basins. These regions were pivotal in the development of early highland farming systems, obsidian exchange networks and fortified Chalcolithic communities. During the Bronze Age, Y17772 bearing individuals took part in demographic processes associated with the Kura Araxes cultural horizon, the rise of highland metalworking centers and intensified interregional exchanges between the South Caucasus and northern Mesopotamia. The lineage later persisted in highland environments, reflecting both environmental stability and demographic continuity across successive archaeological periods.