Overview
J1-ZS647 is a downstream descendant of the J1-L147.1 cluster, a major Arabian-origin lineage. Its ancestral populations emerged during the late Neolithic and early Bronze Age in the northern Arabian plateau and the desert corridor linking the Hejaz with the southern Levant. These groups relied heavily on pastoral lifeways, integrating water-source-based mobility with early caravan trade networks. During the Bronze and Iron Ages, ZS647-bearing communities took part in the demographic expansions associated with emerging North Arabian tribal confederations. Their downstream phylogeny indicates tightly structured microbranches correlated with specific Arabian interior populations. Over time, some of these branches appear in regions historically linked to early Arabic-speaking tribes.