Haplogroup I-Z2900 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | I1a2a1a1d1a1b~ |
|---|---|
| Defining mutations | 1 |
| Downstream branches | 19 |
| Estimated age | 1,850 years |