Table 1.
Nondisjunction tests in centromere protein mutant females
| Female genotype | +/+ | cal12K32/+ | cenp-CIR35/+ | cal12K32 +/+ cenp-CIR35 |
| Ova | ||||
| X; 4 | 2,214 | 1,650 | 2,226 | 692 |
| X; 0 | 0 | 18 | 0 | 14 |
| X; 44 | 1 | 24 | 11 | 7 |
| 0; 4 | 0 | 5 | 1 | 25 |
| 0; 0 | 0 | 1 | 2 | 1 |
| 0; 44 | 0 | 0 | 0 | 3 |
| XX; 4 | 0 | 1 | 2 | 17 |
| XX; 0 | 0 | 0 | 0 | 1 |
| XX; 44 | 0 | 0 | 0 | 0 |
| Total progeny | 2,215 | 1,700 | 2,242 | 760 |
| Adjusted total | 2,215 | 1,707 | 2,247 | 807 |
| X exceptions, % | 0 | 0.8* | 0.44** | 11.6*** |
| 4 exceptions, % | 0.05 | 2.64**** | 0.58 | 3.4***** |
The percentage nondisjunction for the X and 4th chromosomes are shown in bold. Significantly different from WT, as measured by the X nondisjunction significance test of Zeng et al. (46) (*P = 8.0e-03; **P = 0.025; ***P < 1.0e-04). Significantly different from WT by the Kruskal–Wallis test (****P = 1.5e-03; *****P = 4.9e-03).