TABLE 1

Inheritance of alleles at D11Mit66 in backcrosses and intercrosses

Genotype at D11Mit66
CrossB6/B6B6/DDK DDK/DDK% DDKχ2P
1. (F1 × B6)N2 × B6477461.2 ± 8.76.02<0.02
2. (F1 × B6)N2 × DDK414954.4 ± 10.30.71n.s.
3. DDK × F13119286.1 ± 4.5116.24<10−7
4. F1 × B6a59890560.2 ± 2.562.71<10−6
5. F1 × DDKa28126948.9 ± 4.20.26n.s.
6. F1 × F18338023212.29#<0.0025
  • In crosses 1 and 2, N2 females are heterozygous at D11Mit66. % of DDK represents the transmission of DDK alleles, in percent, at D11Mit66 from the heterozygous parent plus or minus the 95% confidence interval. χ2 is the value of the chi-square test under the null hypothesis of equal inheritance of alleles at D11Mit66 in each cross, except in cross 6 (#) where expectations were calculated on the basis of Wakasugi's (1974) predictions (see materials and methods). P is the level of significance, with n.s. denoting nonsignificance.

  • a These data have been reported previously (Pardo-Manuel de Villena et al. 1997, 2000a).