Figure 3.

Comparisons with several different theoretical predictions of the mean values of the reduction in diversity obtained in computer simulations of recurrent sweeps with random mating, autosomal inheritance and semidominant favorable mutations, described in CC. The X axis shows the values of the rate of crossing over, expressed relative to the mean value for Drosophila melanogaster. The red bars are the mean values of the simulation results for neutral (synonymous sites) in a group of 70 genes; the blue bars are the predictions from Equations S12–S15; the black bars are the predictions from Equation 12b of CC; the white bars are the predictions from the coalescent model of recurrent sweeps that assumes competing exponential processes of coalescence by drift and sweeps (Equation 7 of CC). Cases with and without gene conversion (upper and lower panels, respectively), and in the absence or presence of background selection (BGS), using either B₁ or B₂ to predict fixation probabilities when BGS is acting, are shown.