M1a versus M2a and M8 versus M8a comparisons are tests for site models. A versus A null is a test of branch-site selection. *significant at 0.05 level. **significant at 0.01 level. aNumber of sequence
a Numbers in brackets represent the number of 99% STs define within each cluster from which estimates were generated.b P values are give for Fisher’s exact tests for deviation from the neutral expecta
Note: Model A H0 is specified using fixed ω2 = 1. The p-value of Model A H0 versus Model A H1 for the MEF2B and MEF2D branches is 0.040 and 0.033, respectively, which are considered to be statisticall
