Table 1 Probabilities of being in the selected (+) allelic state given a range of selection coefficients and a population size (N) of 106 (Equation A4)
Selection CoefficientProbability of Selected Allelic State
0.00.50
1.25 × 10−70.62
2.5 × 10−70.73
5.0 × 10−70.88
1.0 × 10−60.98
2.0 × 10−60.9997
  • Selection coefficients used to simulate QTL data were chosen to span the full range of probabilities of being in the selected state, given a population size of 106. At one extreme, very small selection coefficients will result in virtually no difference from the equal probabilities of allelic state that correspond to the neutral model (Equation 4). At the other extreme, large selection coefficients will result in virtually no difference in the relative probability of fixation from the certain fixation of the selected state that corresponds to infinitely strong selection.