Haplogroup R-Y6451 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | R1b1a1b1a1a1c2b1b4a2 |
|---|---|
| Defining mutations | 4 |
| Downstream branches | 2 |
| Estimated age | 1,800 years |