Haplogroup O-Y17728 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2b1a1a1a1a1 |
|---|---|
| Defining mutations | 1 |
| Downstream branches | 787 |
| Estimated age | 6,600 years |