Competition between a recombining (#1) and non-recombining population (#2): effects of initial variability, recombination rate, fitness costs and the relative contributions of the higher fitness alleles (e) on the outcome of competition.

Number of times each population Wins (the density of the competing population falls below 105) or is Winning (is the dominant population at the 2000th generation) in 50 independent runs. TF is the mean number of generations before the density of the losing population falls below 105 ±SE: standard error.In all these simulations, μ = 10−8, c = 0.5, and NT = 2×108 and for the experimental populations the recombination rates, χ and selection coefficient, s, are for the #1 population. The parameter e determines the magnitude of the contribution of each allele (see Figure 2).*significant with pχ2 contingency table comparing number of wins of the # 1 and #2 population in recombining vs. control non-recombining).++significant with p