Table 1. Model of the effects on fitness (w) of a mutation.
| Location of the mutation | Asexual females (AA XX) | Sexual females (AA XX) | Males (AA X0) | |||||||
| Autosomes | Genotypes | b/b | b/B | B/B | b/b | b/B | B/B | b/b | b/B | B/B |
| Fitness w | wa,b/b = 1 | wa,b/B = 1+ha sa | wa,B/B = 1+sa | wf,b/b = 1 | wf,b/B = 1+hf sf | wf,B/B = 1+sf | wm,b/b = 1 | wm,b/B = 1+hm sm | wm,B/B = 1+sm | |
| X-chromosome | Genotypes | b/b | b/B | B/B | b/b | b/B | B/B | b/0 | B/0 | - |
| Fitness w | wa,b/b = 1 | wa,b/B = 1+ha sa | wa,B/B = 1+sa | wf,b/b = 1 | wf,b/B = 1+hf sf | wf,B/B = 1+sf | wm,b/0 = 1 | wm,B/0 = 1+sm | - | |
sf, sm and sa respectively denote the homozygous or hemizygous effect of a mutation B present in sexual females, males or asexual females, while hf, hm and ha denote the dominance coefficients of B in these different types of individuals.