Haplogroup O-A16636 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a2b1a1a1a1a1b1a2 |
|---|---|
| Defining mutations | 16 |
| Downstream branches | 42 |
| Estimated age | 4,180 years |