Kura‑Araxes Armenia: Mountain Horizons

The Kura‑Araxes horizon rises from the folds of the South Caucasus mountains in the late fourth to early third millennium BCE. Archaeological data indicates a rapid florescence of a characteristic material culture—black and red burnished pottery, simple rectangular architecture, and intensive metalworking—visible at sites such as Shengavit, Kaps, Karnut Archaeological Complex, Berkaber, and Dzhoghaz Cemetery Meydanner. Radiocarbon‑anchored contexts from this dataset span 3625–2250 BCE, situating these communities firmly within the Early Bronze Age of Armenia.

Limited evidence suggests that the Kura‑Araxes phenomenon is neither a single migrating people nor a wholly local invention, but rather a horizon that combines local highland traditions with contacts across the Caucasus and into Anatolia. The archaeological record shows shared craft traditions and exchange of raw materials across valleys and mountain passes. Genetic data from 12 individuals sampled across these Armenian sites point to a largely local mitochondrial assemblage (U, H, T2h, R, K3) and a single observed Y‑chromosome type (G2b), a pattern consistent with substantial maternal continuity in the region and episodes of interaction or mobility. While this suggests deep roots in the Caucasus, uncertainties remain: 12 genomes provide a valuable but partial window, and further sampling is required to resolve the balance of continuity versus incoming admixture.

The genetic portrait from 12 individuals sampled at Kaps, Karnut, Berkaber, Dzhoghaz Cemetery Meydanner, and Shengavit offers a cautious but telling glimpse into population history. Mitochondrial DNA is dominated by haplogroup U (4 individuals), with additional representation of H (2), T2h (2), R (1), and K3 (1). These maternal lineages are common in West Eurasia and the Caucasus across the Neolithic and Bronze Age; the prevalence of U and presence of H suggest continuity with regional maternal pools that stretch back into earlier Holocene populations.

On the paternal side, Y‑DNA is sparsely sampled here and yields G2b in one individual. Haplogroup G and its sublineages are known in the Caucasus and neighboring regions, and the single G2b observation hints at at least some continuity of local paternal lines—but a single hit cannot define population structure. Taken together, the data point toward a community rooted in local Caucasus ancestry with signals of connectivity: maternal lineages reflect long‑standing regional continuity, while the limited paternal evidence and archaeological signs of exchange imply episodes of male and female mobility.

Caveats: 12 genomes provide meaningful initial resolution but remain a moderate sample size. Broader geographic and temporal sampling, coupled with genomic autosomal analysis, is required to model incoming gene flow, sex‑biased migration, and links to later populations in Armenia and beyond.