Description
C2a1a3 (F1918) is a subclade of C2a1a distributed across East Asia, found in Chinese, Korean, and Southeast Asian populations. It is characterized by the F1918 SNP marker and represents a distinct lineage that diverged during the early Neolithic demographic expansion of East Asia. C2a1a3 has a somewhat broader geographic range than its sister clades, extending into parts of Southeast Asia through ancient population movements associated with the spread of rice agriculture.
Interesting Fact
The F1918 marker defines a branch of haplogroup C that accompanied the early spread of East Asian agricultural populations southward into Southeast Asia, providing a genetic signal of ancient continental East Asian migration routes predating historical records.
Distribution by Ethnicity
| Ethnic distribution | Region | Frequency | Sample |
|---|---|---|---|
| Zhuang | South China | n=300 | |
| Han Chinese | East Asia | n=2000 | |
| Vietnamese | Southeast Asia | n=500 | |
| Koreans | East Asia | n=800 |
Tags
References
- Wei et al. (2018) — Phylogenetic analysis of the Y-chromosome haplogroup C2b-F1067. PLOS ONE 13(5), e0197744.