TABLE 1

Genotypic values for the neutral two-locus epistatic system

A1A1A1A2A2A2
B1B111 - sh11 - s
B1B21 - sh21 - s(h1 + h2)1 - s(1 + h2)
B2B21 - s1 - s(1 + h1)1 - ks
• s/2 (s > 0) and hi (0 ≤ hi ≤ 1) are, respectively, the basic homozygous effect at each locus and the basic coefficient of dominance at the ith locus, and k (k ≠ 2) is the epistatic factor.