TABLE 4

Neutrality tests using silent polymorphisms

No. lociSign testb
AveragePaVariancePa+2.5%−2.5%+P
n = 195 loci without outgroup
 Tajima's D−0.4712<0.0001*1.01730.115831750127<0.001*
 Fu and Li's D*−0.4745<0.0001*1.2352<0.0001*71564111<0.001*
 D/Dminc−0.2944<0.0001*0.35780.91402 549126<0.001*
n = 43 loci with A. lyrata outgroup
 Fu and Li's D−0.42650.0050*1.48130.0012*2 610 210.071
 Fay and Wu's H−0.35060.86102.50910.60283 222 160.418
 H/Hmind−0.02770.82800.04750.69820 216 151.000
n = 20 loci with B. drummondii outgroup
 Fu and Li's D−0.68090.0004*1.11180.39200 2 4 130.049*
 Fay and Wu's H−0.74510.57486.70610.21181 012  70.359
 H/Hmind0.03280.10680.02420.40200 0 9  60.607
  • * Significant P-values (P ≤ 0.05).

  • a Two-tailed probability.

  • b Number of loci with values larger (+) and smaller (−) than the median in coalescent simulations.

  • c Tajima's D divided by its minimum (Schaeffer 2002).

  • d Fay and Wu's H divided by its minimum (see materials and methods).