Haplogroup O-PH1657 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2b1a1a1a1a1b1a1b2a2 |
|---|---|
| Defining mutations | 7 |
| Downstream branches | 20 |
| Estimated age | 4,000 years |