Figure 2. Bootstrapped phylogram of Rhodnius prolixus and other insect peritrophin annotated as Group IV peritrophin in Fig. 1.

Bootstrap values above 50% are shown on the branches. The bottom line indicates 10% amino acid sequence divergence between the proteins. R. prolixus sequences are shown by the notation RP followed by a unique number. The remaining protein sequences were obtained from GenBank and are annotated with the first three letters of the genus name followed by the first three letters of the species name followed by their GenBank GI number. All non-Rhodnius sequences derive mostly from mosquitoes, with one deriving from a flea and another from a sand fly. Roman numerals indicate clades with mixed mosquito genera. Ten thousand replicates were done for the bootstrap test using the neighbor joining method.