Relative Rate Ratio Tree and Coefficent of Functional Divergence. Numbers of replacement and silent, invariant and variant substitutions are shown above branches (RI/RV, SI/SV) for lineage with significant results indicating adaptive evolution. Coefficients of functional divergence (θ) estimated from DIVERGE are shown on the right; θ is shown on the internal branch separating HoxB from protoHoxACD for the divergence between HoxB and protoHoxACD. Results are shown for both the ((AD)(BC)) (A.) and (B(A(CD))) (B) topologies. *, p < 0.05; **, p < 0.001.
Lynch et al. BMC Evolutionary Biology 2006 6:86 doi:10.1186/1471-2148-6-86