Haplogroup O-BY223135 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a1b1a2a2a |
|---|---|
| Defining mutations | 42 |
| Downstream branches | 107 |
| Estimated age | 5,410 years |