Figure 2
From: Crozier’s paradox revisited: maintenance of genetic recognition systems by disassortative mating
Recognition locus diversity and cooperation are affected by the benefit of cooperation to the recipient, the mating system and the mode of recognition. m < 0 corresponds to disassortative mating, while m > 0 represents assortative mating. Panels A and C: if outcrossed matings do not affect the number of surviving offspring (x = 0), cooperative behaviour typically erodes recognition locus diversity. Panels B and D: if outcrossed matings produce more offspring (x > 0), both cooperation and variable recognition cues can persist. All figures assume the following parameter space: N = 6, c = 1, k = 5, r = 0.05, d = 0.1, μ = 10-5 and h = 1.