TABLE 1

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

Deleterious mutations per individualAverage difference in log fitness (Embedded Image )
Mutation rate (U)Mean (Embedded Image )Variance (Vn)
2.050.849.2−0.000320
1.543.642.4−0.000240
1.035.034.2−0.000160
0.524.123.7−0.000080
0.19.89.8−0.000014
  • All cases, moderate synergistic epistasis was assumed (α = 0.002, β = 0.0008). The values for Embedded Image and Vn are from Charlesworth (1990), and differ due to the linkage disequilibrium that is caused by epistasis.