TABLE 4.
Gonadal dysgenesis in the grand offspring of F1 hybrids between TP; Birm stocks and a +; Birm stock
|
TP present in F2 ♀♀
|
TP absent in F2 ♀♀
|
|||||
|---|---|---|---|---|---|---|
| Stocka | No. of vials | No. of ♀♀ | % GD + SEb | No. of vials | No. of ♀♀ | % GD + SEb |
| TP5; Birm (2a) | 25 | 452 | 6.7 ± 1.9 | 24 | 430 | 81.9 ± 4.9 |
| TP5; Birm (2b) | 25 | 465 | 6.6 ± 2.0 | 25 | 457 | 77.2 ± 5.6 |
| TP6; Birm (2a) | 25 | 472 | 0.4 ± 0.3 | 25 | 431 | 63.9 ± 5.7 |
| TP6; Birm (2b) | 25 | 432 | 0.6 ± 0.4 | 24 | 403 | 95.7 ± 1.5 |
The TP (w)/+; Birm F1 hybrids were crossed to males from a w; Birm stock (2a in Table 3) and their TP (w)/w; Birm (phenotypically white, TP present) and +/w; Birm (red, TP absent) F2 daughters were then crossed to Harwich males to obtain F3 females, which were scored for GD regardless of eye color.
a
Replicate stocks carrying the same TP are distinguished by the identity tags in parentheses; these tags correspond to the ones given in Table 3.
b
Unweighted mean percentage GD ± standard error.