Figure 2 in Phylogenetic analysis of Zygaenoidea small-subunit rRNA structural variation implies initial oligophagy on cyanogenic host plants in larvae of the moth genus Zygaena (Insecta: Lepidoptera)

Figure 2. Distribution of pairwise tree edit distances between highly variable SSU rRNA secondary structure areas (S1–S6, Fig. 1) of Zygaenoidea excluding taxa of the subgenus Mesembrynus (top) and of Zygaena species belonging to the subgenus Mesembrynus only (bottom). The extreme values in the Zygaenoidea tree edit distance distribution on the right all involve Z. excelsa, a species showing a highly derived secondary structure in the area S6 (compare with Fig. 6).