Table 2.

Designated parameter values for the resistance trait. ${\gamma }_{\mathit{SS}}={\psi }_{\mathit{SS}}=1$ in all simulations. Relative fitnesses for each combination of parameter values by genotype are detailed in supplementary table S1.

Parameter designation	Constraints/values
Dominant complete	${\gamma }_{\mathit{SR}}={\gamma }_{\mathit{RR}}=0$
Partially dominant complete	$1>{\gamma }_{\mathit{SR}}>0$, ${\gamma }_{\mathit{RR}}=0$
Co-dominant complete	${\gamma }_{\mathit{SR}}=0.5$, ${\gamma }_{\mathit{RR}}=0$
Partially dominant incomplete	$1>{\gamma }_{\mathit{SR}}>{\gamma }_{\mathit{RR}}>0$
No costs	${\psi }_{\mathit{SR}}={\psi }_{\mathit{RR}}=1$
Minor costs	${\psi }_{\mathit{SR}}=0.95$, ${\psi }_{\mathit{RR}}=0.85$
Fit resistance	${\psi }_{\mathit{SR}}=0.9$, ${\psi }_{\mathit{RR}}=0.7$
Costly resistance	${\psi }_{\mathit{SR}}=0.2$, ${\psi }_{\mathit{RR}}=0.1$