Figure 7. Phylogenetic analysis of hymenoptaecin domains from different ant species.

Shown is the unrooted tree of the single domains of the hymenoptaecins of the ant species, N. vitripennis, and A. mellifera. The proteins were cleaved at the sites predicted by ProP, followed by the alignment by translatorX. The tree was reconstructred by PhyML with a GTR+I+G+F model with 100 bootstrap replicates. The domains of the species with a complete hymenoptaecin protein form clades and are named as groups according there genus name and are indicated by their grey background. The domains which are outside these groups result from missing data from the predicted genes. The gene models are incomplete due to long N-stretches in the genomic sequences based on the scaffolding process. Nevertheless, the distinct groups formed by the complete proteins suggest an intra-species mechanism for the accumulation of the single domains.