Overview
J1-Y7410 is a downstream lineage of the Arabian-centered J1-P58 expansion and appears to have formed among pastoral communities occupying the northern and central Arabian Peninsula during the early Bronze Age. These populations organized their mobility around deep wells, semi-permanent encampments and small oasis clusters that allowed predictable access to grazing and water across desert-steppe ecologies. Their demographic profile fits the early structural foundations of North Arabian tribal societies. In the Bronze and Iron Ages, Y7410-bearing groups were part of the tribal networks that linked the Hejaz, central Arabia and the steppe zone bordering southern Jordan and western Iraq. Founder effects visible in the internal phylogeny point to the crystallization of specific clan lineages that preserved their identity across centuries. With the expansion of the early Islamic world, some downstream branches of Y7410 moved into Iraq and eastern Arabia, where further microclade diversification occurred within urban, oasis and semi-nomadic settings.