Table 1.
Fitness values at a sexually antagonistic locus, after Kidwell et al. (1977). sf and sm (0 < sf,sm ≤ 1) represent the strength of selection in females and males, respectively. hf and hm (0 ≤ hf,hm ≤ 1) are sex-specific dominance parameters; specifically, hf (hm) is the dominance in females (males) of the allele which is deleterious in females (males). Note that hm applies only to the autosomal case. Rice (1984) assumed equal dominance of a given allele in the two sexes; in Kidwell et al.’s notation, this implies hm = 1 − hf. Identities relating Kidwell et al.’s parameters to those used by Rice are given in Appendix Table 1.
| Genotype
|
|||
|---|---|---|---|
| A1A1 or A1Y | A1A2 | A2A2 or A2Y | |
| Females, X-linked or autosomal locus | 1 | 1 − hfsf | 1 − sf |
| Males, X-linked locus | 1 − sm | NA | 1 |
| Males, autosomal locus, Rice’s assumption | 1 − sm | 1 − (1 − hf)sm | 1 |
| Males, autosomal locus, general dominance | 1 − sm | 1 − hmsm | 1 |
NA: not applicable.