Haplogroup J-Y3020 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J2a1a1a2b2a3b1~ |
|---|---|
| Defining mutations | 7 |
| Downstream branches | 100 |
| Estimated age | 8,410 years |