Plot of initial pairwise (A) and lineage-based (B) ω values for putative genes in HmB. The same PAML analyses used to generate Fig. 2 were performed on 454 contigs and BAC sequences of genes within the HmB locus, which controls presence of the red band on the forewing. Genes with higher than average ω values across many pair-wise (A) and lineage-wide (B) analyses include DALR (HM01004), hypothetical protein (HM01022), and kinesin (HM01018). The solid lines connecting data points indicate genes found on the forward strand, while the dotted lines indicate genes located on the reverse strand. The background ω could be estimated for only a limited number of genes since there is no HmB BAC sequence for H. numata. Background ω values were calculated using available 454 contigs of H. numata.