Zhagunluke Iron-Age Oasis

Archaeological excavations at Zhagunluke (also spelled Zaghunluq) in Qiemo County, Bayinguoleng Region, place human activity firmly in the Iron Age, with radiocarbon-calibrated contexts dated between 541 and 8 BCE. The site occupies an ecological threshold — the eastern fringe of the Taklamakan Desert where oasis settlements met mobile steppe groups. Stratigraphy and burial contexts indicate a community shaped by trans-Eurasian contact: material culture and grave assemblages show influences that can be traced along north–south and east–west trade corridors.

Genetic sampling (16 individuals) provides an archaeological complement: paternal lineages show a strong presence of haplogroup R, a marker frequently associated with West Eurasian and steppe-derived ancestries. Maternal lineages include H, T, N, R, and HV, many of which have broad West Eurasian or Eurasian distributions. These data are consistent with a scenario in which Zhagunluke emerges as a frontier population formed through admixture between local east Eurasian groups and incoming or connected western-derived groups.

Limited evidence cautions against overreach: while the genetic signal is clear in parts, the sample set is modest and spatially constrained. Archaeological data indicate a dynamic place of encounter rather than a single, homogeneous population. Further excavations and denser sampling across the Tarim Basin are needed to resolve finer-grained origins and migration pathways.

The genetic dataset from Zhagunluke comprises 16 analyzed individuals dated to 541–8 BCE. A striking feature is the prevalence of Y-chromosome haplogroup R in 8 of 16 males, indicating that roughly half of the male lineages sampled derive from a lineage commonly found across West Eurasia and often linked to Steppe-related populations. On the maternal side, reported mtDNA haplogroups include H (3), T (3), N (2), R (1), and HV (1). These maternal lineages are likewise common across western and central Eurasia, though several also have broader pan-Eurasian distributions.

Taken together, the uniparental markers point to significant West Eurasian genetic contributions at Zhagunluke, especially in paternal ancestry. This pattern is consistent with archaeological interpretations of the Tarim corridor as a crossroads where people, goods, and ideas flowed between the steppe and oasis worlds. However, caution is warranted: mtDNA counts listed here cover 10 individuals; the remaining samples may include additional lineages not summarized in this set or incomplete preservational coverage. Autosomal genome-wide data would better quantify admixture proportions and directionality, but current uniparental signals already suggest sex-biased processes — potentially male-mediated movements or patrilocal residence patterns — that influenced local gene pools.

Because the total sample is modest and geographically specific, conclusions about population-wide dynamics across Xinjiang should remain tentative. Further aDNA sampling, combined with broader comparative datasets, will refine interpretations of migration, marriage networks, and the tempo of admixture across the Tarim Basin.