Haplogroup R-CTS8401 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | R1a1a1b1a3a2a |
|---|---|
| Defining mutations | 1 |
| Downstream branches | 50 |
| Estimated age | 4,060 years |