Ancient DNA from eight individuals at Xiaowu and Wanggou gives a preliminary genetic portrait of a Middle Neolithic Yellow River community. Y-chromosome markers were identified as Q (1 individual) and O (1 individual). Mitochondrial haplogroups observed include D, F1, B, M and C (one instance each reported). These mtDNA lineages are broadly characteristic of East Asian and northern East Asian maternal diversity.
Haplogroup O is a major East Asian paternal lineage today and its presence, even as a single count here, is consistent with regional continuity of East Asian Y-lineages. Haplogroup Q occurs across northern Eurasia and is ancestral to lineages found in Siberia and, ultimately, the Americas; its detection in one individual suggests pockets of northern-associated diversity or contacts, but with so few Y-chromosome observations firm conclusions are premature.
The mtDNA diversity—D, F1, B, M and C—aligns with expectations for Neolithic populations of the Yellow River basin. These maternal markers suggest connections to broader East Asian maternal pools rather than to a single isolated lineage. Crucially, the total sample size is only eight: fewer than 10 samples. Limited evidence suggests patterns, but the small N makes population-level inferences tentative. Future wider sampling and genome-wide data will be necessary to resolve ancestry, admixture, and continuity with later populations.
