Haplogroup J-S16400 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | J2a1a1a2b2a1a1a |
|---|---|
| Defining mutations | 19 |
| Downstream branches | 68 |
| Estimated age | 5,590 years |