Haplogroup E-Z1771 is a Y-chromosome (paternal) haplogroup on TheYtree, catalogued with its defining mutations, sample distribution and phylogenetic tree.
| ISOGG name | E1b1a1a1a2a1a3b1d1c1a1 |
|---|---|
| Defining mutations | 2 |
| Downstream branches | 6 |
| Estimated age | 1,900 years |