TABLE 3

Strain-specific effects on F2 expression of the zygotic Tra phenotype of Cb-tra-3(ed24ts)

P0 fatherWild-type hermaphroditesTra (%)Intersexual (%)
AF1635881 (18.5)a0 (0)
HK10446913 (2.7)b6 (1.2)
VT847339102 (23.1)0 (0)
  • P0 mothers were AF16-derived Cb-tra-3(ed24ts) homozygotes for both crosses.

  • a Differs significantly from the 25% Mendelian expectation (χ2 = 5.63, 1 d.f., P < 0.025). This reproducible effect is due to slower growth and reduced viability of Tra animals.

  • b Reduced Tra frequency relative to AF16 is highly significant (χ2 = 62.22, 1 d.f., P < 0.001).