Genomic signatures of female exogamy and cultural interaction in a Tang Dynasty patrilineal clan

AI interpretationAI-generated

Tang frontier clan DNA shows women married in from outside while culture stayed unified.

Researchers sequenced 38 individuals from a Tang Dynasty cemetery in an agro-pastoral transition zone. Most shared the same paternal lineage, meaning the clan traced descent through men. But the women carried diverse maternal lineages, showing they came from different outside groups. This suggests the clan practiced female exogamy: wives joined from elsewhere, while the community maintained a single cultural identity. Kinship networks, not just politics, drove genetic mixing and cultural integration on the Tang frontier.

• All 38 sampled individuals belong to the Tang Dynasty culture at one site, showing a single community over time.
• 12 of 18 resolvable Y-chromosomes fall under O-TY528560, indicating a dominant paternal clan.
• Maternal lineages are diverse (M8a2, C7, D4b2b, D5a2a1-a, A14, G1a1b), pointing to women marrying in from multiple outside populations.

Sample interpretation

The study analyzed 38 individuals from site HRR2980275. Y-chromosome data resolved for 18 males: 12 share O-TY528560, with a few others in broader O branches. Mitochondrial DNA shows six different lineages, none dominant. This pattern, many men in one paternal line and women from varied maternal backgrounds, is a classic signature of patrilocal, female-exogamous clans. The sample size is modest but provides rare individual-level insight into Tang frontier family structure.

For genealogy enthusiasts

For ancestry enthusiasts, this shows Y-DNA can track a clan's paternal core while mtDNA reveals incoming wives. If your paternal line matches O-TY528560, you may share deep roots with this Tang frontier clan. Diverse mtDNA signals mean maternal ancestry often crosses community boundaries, even when culture stays unified.