Figure 2.

Invasion rates for a biandrous mutant into an infinite monandrous population. The solid lines show the theoretical prediction $(2\mu L)/(10-3x)$, valid for small μL. The upper data have μL=10⁻² and the lower data have μL=10⁻³; open symbols and dashed lines have L=1000 recessive loci, filled symbols and dotted lines have L=50 recessive loci.