TABLE 2

The difference between mean offspring log fitness and mean parent log fitness (recombination load) in simulated sexual populations

Observed deleterious mutations per individualbMean difference in log fitness (Embedded Image )aProportion of matings in which Embedded Image
Mutation rate (U)Mean (Embedded Image )Variance (Vn)td
2.050.7445.82−0.000788 (0.001081)0.312
1.543.7441.34−0.000955 (0.000959)0.320
1.034.8333.98−0.000126 (0.000980)0.314
0.524.1422.36−0.000400 (0.000575)0.292
0.19.889.54−0.000145 (0.000244)0.284
  • Deleterious mutations were assumed to be normally distributed, with the mean and variance predicted for that mutation rate (Table 1; Charlesworth 1990). In all cases, moderate synergistic epistasis was assumed (α = 0.002, β = 0.0008).

  • a 95% confidence intervals are shown in parentheses.

  • b Observed in 1000 simulated individuals.