TABLE 4

Neutrality vs. selection in nonequilibrium populations (shallow bottlenecks)

Model ParameterPerformanceSFSF*ωω*SVM
Sweep in phase 1TP (FP = 0.27)0.460.490.220.250.5
Median distance (bp) from target (SD)10116 (6872)10691 (7001)10268 (6658)10868 (6670)
Random target distance (SD)11604 (6862)11452 (6835)10744 (6895)11192 (7115)
Sweep in phase 2TP (FP = 0.22)0.580.560.270.320.6
Median distance (bp) from target (SD)10233 (6866)11059 (6807)11659 (6721)11531 (6643)
Random target distance (SD)11725 (6889)11375 (6855)10846 (6829)11245 (6882)
Sweep in phase 2*TP (FP = 0.35)0.670.740.650.40.67
Median distance (bp) from target (SD)9610 (6814)10148 (6962)11356 (6683)10680 (6539)
Random target distance (SD)11906 (6889)12102 (6846)12432 (6894)11583 (7079)
Sweep in phase 3TP (FP = 0.25)0.40.380.230.270.46
Median distance (bp) from target (SD)10232 (6710)10447 (6744)11693 (6965)10829 (6625)
Random target distance (SD)11372 (6906)11574 (6857)11666 (6817)13068 (6914)
  • A shallow bottleneck, named model B, is examined. The ratioEmbedded Imageand the length of the bottleneck is 0.01875. A recent sweep at time 0.01 (sweep in phase 1), a sweep within the bottleneck at time 0.0107 (sweep in phase 2), and an old sweep at 0.115 (sweep in phase 3) are described. The selection coefficient in the model “sweep in phase 2*” is 0.1.