Haplogroup R-Y2631 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | R1a1a1b2a2b2b1~ |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 8 |
| Estimated age | 3,100 years |