Table I. Segregation of root hair phenotypes in the F1 and F2 generations of the hhd mutants backcrossed with the wild type.
| Cross (♀ × ♂) | Total No. | Normal | Haustorial Hairless | Ratio | χ2 | Probability |
|---|---|---|---|---|---|---|
| F1 generation | ||||||
| hhd1-1 × wild type | 37 | 37 | 0 | 37:0 | 0 | 1 |
| hhd1-2 × wild type | 19 | 19 | 0 | 19:0 | 0 | 1 |
| hhd2 × wild type | 15 | 15 | 0 | 15:0 | 0 | 1 |
| F2 generation | ||||||
| hhd1-1 × wild type | 123 | 92 | 31 | 3:1 | 0.0 | 0.958 |
| hhd1-2 × wild type | 196 | 152 | 44 | 3:1 | 0.7 | 0.409 |
| hhd2 × wild type | 199 | 148 | 51 | 3:1 | 0.0 | 0.838 |