Haplogroup R-Z281 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | R1a1a1b1a3a2a1 |
|---|---|
| Defining mutations | 17 |
| Downstream branches | 38 |
| Estimated age | 2,600 years |