Haplogroup O-A9459 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2b1a1a1a |
|---|---|
| Defining mutations | 21 |
| Downstream branches | 2,179 |
| Estimated age | 6,900 years |