Alkhantepe: Late Chalcolithic Echoes

Alkhantepe, a Late Chalcolithic locus near Uchtepe village in Jalilabad district, sits in the lowland corridor of the South Caucasus where river plains meet semi-arid steppe. Archaeological data indicates human activity at the site around 3776–3651 BCE. The material traces from this era in Azerbaijan often reflect local adaptation to a mosaic landscape — seasonal herding, irrigated plots and participation in long-distance exchange across the Caucasus and into Mesopotamia.

Limited evidence suggests communities here experimented with new technologies of copper use and expanded craft specialization, while maintaining older ceramic traditions. The single ancient genome from Alkhantepe captures a human life lived at a frontier of ideas and goods: a point where coastal and inland routes threaded together.

Because only one genetic sample is available, any model of population origins must remain provisional. Nevertheless, the archaeological context aligns with broader Late Chalcolithic patterns across Azerbaijan: regional continuity from earlier Neolithic settlements combined with intermittent external contacts. This paints a picture of emergence by local communities adapting in a changing social and ecological landscape, rather than by abrupt replacement.

The Alkhantepe individual (Uchtepe village, Jalilabad district) yielded ancient DNA dated between 3776 and 3651 BCE. This single genome carries Y-chromosome haplogroup G1 and mitochondrial haplogroup K.

Haplogroup G1 is relatively rare today but has known concentrations in parts of the Caucasus and adjacent regions; its presence in a Late Chalcolithic lowland individual is compatible with long-standing paternal lineages in the South Caucasus. Mitochondrial haplogroup K is a West Eurasian maternal lineage that appears in Neolithic and later contexts across Europe and the Near East, often associated with agricultural expansions. Together, these markers suggest continuity with broader West Eurasian gene pools while also resonating with regional signatures.

Crucially, only one sample underpins these observations. With N=1, population-level claims (frequencies, migrations, sex-biased admixture) remain speculative. Archaeogenetic inference should therefore be framed as a single, informative data point: it confirms that haplogroups G1 (paternal) and K (maternal) were present in the Azerbaijan lowlands in the mid-4th millennium BCE, but cannot resolve how widespread these lineages were or the full demographic processes at play. Future sampling from Alkhantepe and neighboring sites will be essential to move from vivid conjecture to robust population models.