Fig. 5.

Examples of the $K/\mu$ ratio under different cases of gametophytic and sporophytic selection. The results are obtained from equation (10). Selection coefficients in each case are indicated in the figure, with a commonly used parameter of the effective population size $N_e=30$. The cases with the first y-axis are the gametophytic selection only ($s_O=s_P=0.02$, $s_{\mathrm{hom}}=0.00$, $s_{\mathrm{het}}=0.00$ for the deleterious mutant allele; $s_O=s_P=-0.02$, $s_{\mathrm{hom}}=0.00$, $s_{\mathrm{het}}=0.00$ for the favorable mutant allele), the sporophytic selection against the deleterious mutant allele ($s_O=s_P=0.00$, $s_{\mathrm{hom}}=-0.03$, $s_{\mathrm{het}}=-0.02$), the antagonistic selection ($s_O=s_P=-0.02$, $s_{\mathrm{hom}}=-0.03$, $s_{het}=-0.02$), and the synergistic selection against the deleterious mutant allele ($s_O=s_P=0.02$, $s_{\mathrm{hom}}=-0.03$, $s_{\mathrm{het}}=-0.02$). The cases with the second y-axis are the antagonistic selection ($s_O=s_P=0.02$, $s_{\mathrm{hom}}=0.03$, $s_{\mathrm{het}}=0.02$), the sporophytic selection for the favorable mutant allele ($s_O=s_P=0.00$, $s_{\mathrm{hom}}=0.03$, $s_{\mathrm{het}}=0.02$), and the synergistic selection for the favorable mutant allele ($s_O=s_P=-0.02$, $s_{\mathrm{hom}}=0.03$, $s_{\mathrm{het}}=0.02$).