Haplogroup O-F16501 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2a1a2a1a1a2a1a1a1a |
|---|---|
| Defining mutations | 5 |
| Downstream branches | 32 |
| Estimated age | 2,400 years |