TABLE 2

Maximum-likelihood results

CriterionModel chosenEmbedded ImageEmbedded ImageShared-parameter MLEs
yakuba–simulansAIC/BIC10ii0.4050Embedded Image = 0.405
AICc5iv0.4280.351Embedded Image = 0.03, Embedded Image = 9.06
Embedded Image = 0.00, Embedded Image = 0.78 Embedded Image = 0.45
melanogaster–simulansAIC10iv0.4050.101Embedded Image = 0.39, Embedded Image = 0.98, Embedded Image = 0.97
BIC10ii0.4360Embedded Image = 0.436
AICc5iv0.4040.375Embedded Image = 0.02, Embedded Image = 2.46
Embedded Image = 0.04, Embedded Image = 0.79, Embedded Image = 0.51
D. simulans lineageAIC10iv0.4360.097Embedded Image = 0.42, Embedded Image = 0.98, Embedded Image = 0.97
BIC/AICc5iv0.4300.324Embedded Image = 0.03, Embedded Image = 0.63
Embedded Image = 0.19, Embedded Image= 0.87 Embedded Image = 0.65
  • Likelihood models supported by the different model selection criteria are shown. Three sets of results are presented, with the divergence to D. simulans measured from D. yakuba, D. melanogaster, and the common ancestor of melanogaster and simulans. For the chosen models, the maximum-likelihood estimates of the across-locus mean and standard deviation of α are shown. These quantities, denoted Embedded Image and Embedded Image, were determined from the MLE parameters of pdf(α). Also shown are the estimated values of parameters common to all loci.