TABLE 1

Expected numbers of low-, intermediate-, and high-frequency variants for different strengths of the hitchhiking effect

c/sLow 0 < x ≤ 0.1Intermediate 0.1 < x < 0.9High 0.9 ≤ x < 1.0Relative abundance Low:intermediate:high
Neutral29.2921.421.0627.6:20.2:1.0
0.10025.5518.651.6215.7:11.5:1.0
0.01017.933.314.504.0:0.7:1.0
0.00111.520.311.279.1:0.2:1.0
  • The expected number of sites in a sample of 100 was calculated from 1000 iterations of a coalescence algorithm (materials and methods), where θ = 10 and s = 10−3.