This cluster includes the following 74 haplogroups:
| Haplogroup |
|---|
| I |
| I* |
| I1 |
| I1* |
| I1a |
| I1a*1 |
| I1a*2 |
| I1a1 |
| I1a1a |
| I1a1a1 |
| I1a1a2 |
| I1a1a3 |
| I1a1a3a |
| I1a1b |
| I1a1c |
| I1a1d |
| I1a1e |
| I1b |
| I1b*1 |
| I1b*2 |
| I1b*3 |
| I1c |
| I1c1 |
| I1c1a |
| I1d |
| I1e |
| I1f |
| I2 |
| I2'3 |
| I2a |
| I2a1 |
| I2a1a |
| I2a2 |
| I2a3 |
| I2b |
| I2c |
| I2d |
| I2d* |
| I2e |
| I2f |
| I3 |
| I3a |
| I3a1 |
| I3b |
| I3c |
| I3d |
| I3d1 |
| I4 |
| I4a |
| I4a1 |
| I4a2 |
| I4b |
| I5 |
| I5a |
| I5a1 |
| I5a1a |
| I5a1b |
| I5a1c |
| I5a1c* |
| I5a2 |
| I5a2* |
| I5a2+16086 |
| I5a2a |
| I5a3 |
| I5a4 |
| I5b |
| I5b1 |
| I5c |
| I5c* |
| I5c1 |
| I6 |
| I6a |
| I6b |
| I7 |