TABLE 1

Features of genetic variation with and without hitchhiking

ExamplesNNρατθWθ/2 (kb)aE[Wθ/2]bpwithincEmbedded Image dSmaxe
110510−300.0021.91 ± 0.890.139 ± 0.0135.04 ± 1.93
210510−300.0051.53 ± 0.800.141 ± 0.0158.60 ± 3.28
310510−300.011.48 ± 1.090.140 ± 0.01511.8 ± 3.9
410510−3400.050.0053.46 ± 1.814.330.580.141 ± 0.0149.06 ± 3.30
510510−31000.050.0057.04 ± 3.788.240.840.146 ± 0.0149.94 ± 3.39
610510−32000.050.00510.4 ± 4.914.00.8850.162 ± 0.02212.5 ± 5.3
710610−32000.050.00510.2 ± 4.714.00.8450.161 ± 0.01811.7 ± 4.7
810610−32000.050.0111.3 ± 5.614.00.8750.157 ± 0.02215.2 ± 5.2
95 × 1055 × 10−300.0050.95 ± 0.460.120 ± 0.0065.12 ± 1.51
105 × 1055 × 10−35000.050.0054.96 ± 2.365.800.8350.123 ± 0.0067.20 ± 2.72
115 × 1055 × 10−3100010−30.0058.27 ± 3.5111.10.910.147 ± 0.01512.2 ± 6.4
125 × 1055 × 10−310000.050.0057.79 ± 3.0710.30.880.127 ± 0.0078.52 ± 3.40
135 × 1055 × 10−310000.20.0056.23 ± 2.927.870.8350.120 ± 0.0055.82 ± 1.80
  • Results are based on 100 replicates for each parameter set. For all simulations, L = 40 kb, n = 10, Tlimit = 7.0, and ξ = 50/N.

  • a Means ± standard deviations of Wθ/2. See text for definitions.

  • b Prediction of Wθ/2 using Equation 13 of Kim and Stephan (2000).

  • c Proportion of simulated data in which the site of the beneficial mutation is included in the region of low variation that defines Wθ/2.

  • d Means ± standard deviations of Embedded Image .

  • e Means ± standard deviations of Smax.