Table 1.
Mean and Variance of Genotype Count for One Offspringa and Distribution of Genotypes for n Offspring, Given the Parental Mating Type
| Parental Mating Type (r×s) | Mean (μrs) | Variance (σ2rs) | Genotype Probability for n Offspringb (φrs[n11,n12,n22]) |
| B1B1×B1B1 (2×2) | 1 | 0 | 1if n12=n22=00otherwise |
| B1B1×B1B2 (2×1) | 1/2(1+c1) | 1/4(1-c1)2 |  |
| B1B1×B2B2 (2×0) | c1 | 0 | 1if n11=n22=00otherwise |
| B1B2×B1B2 (1×1) | 1/4+ 1/2c1 | 1/16(4c21-4c1+3) |  |
| B1B2×B2B2 (1×0) | 1/2c1 | 1/4c21 |  |
| B2B2×B2B2 (0×0) | 0 | 0 | 1if n11=n12=00otherwise |
a
With c0=0 and c2=1.
b
nij is the number of offspring with genotype BiBj, i, j=1,2, with n11+n12+n22=n.