Haplogroup J-Z18257 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J1a2a1a2d2b2b2c4d1a1a1~ |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 76 |
| Estimated age | 3,300 years |