Haplogroup O-Z31836 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | O2a1b1a1a1a1c1b |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 9 |
| Estimated age | 3,320 years |