TABLE 2

Gonadal dysgenesis in the offspring of reciprocal F1 hybrids between TP and M′ strains

Cross I:Cross II:
TP present in F2 ♀♀TP ♀ × stock ♂ → F1TP ♂ × stock ♀ → F1
StockNo. of F2 ♀♀%GD ± SEaNo. of F2 ♀♀% GD ± SEa
Control crosses with TP5
Samarkand (M)+30494.7 ± 2.7320b96.8 ± 1.0
25797.2 ± 1.4336b99.8 ± 0.2
Control crosses with TP6
Samarkand (M)+32864.8 ± 4.621899.6 ± 0.4
33676.7 ± 4.3246100.0 ± 0.0
M′ crosses with TP5
Sexi.4 (M′)+27034.5 ± 4.240396.6 ± 1.6
26745.7 ± 5.237197.4 ± 1.0
Sexi.7 (M′)+32339.6 ± 4.937669.5 ± 5.6
31444.3 ± 5.535367.0 ± 4.3
M5B#1 (M′)+30843.6 ± 4.735685.6 ± 2.8
25644.9 ± 4.929788.5 ± 2.6
M′ crosses with TP6
Sexi.4 (M′)+4061.1 ± 0.537476.1 ± 7.6
4112.1 ± 0.742076.5 ± 7.6
Sexi.7 (M′)+3373.8 ± 2.427570.7 ± 6.6
3120.9 ± 0.527470.9 ± 6.6
M5B#1 (M′)+2970.0 ± 0.03157.4 ± 2.9
2650.4 ± 0.428813.2 ± 4.2
M′ crosses with w m f (M strain)c
Sexi.4 (M′)468100.0 ± 0.0478100.0 ± 0.0
Sexi.7 (M′)449100.0 ± 0.045299.6 ± 0.3
M5B#1 (M′)42198.7 ± 0.647999.8 ± 0.2
  • These data were obtained from two separate experiments, one involving crosses with the TP5 strain and the other involving crosses with the TP6 and w m f strains.

  • a Unweighted mean percentage of GD ± standard error.

  • b In these groups, 24 F1 females were tested; in all other groups, 25 F1 females were tested.

  • c The M strain w m f was substituted for the TP strains in crosses I and II, and the F2 females were scored for GD without regard to eye color.