Fig. 5.—

Phylogenetic relationships of the Obp-like and insect (D. melanogaster) Obp family members. Lineages and species names are colored as in figure 1. For clarity, two D. melanogaster nodes with 12 and 33 descent sequences are collapsed. The color of the inner circle indicates the Obp subfamily: Classic (black), Minus-C (green), Plus-C (blue) and Dimer (red). The outer circle in yellow indicates the members from noninsect species with PBP/GOBP domain (IPR006170). The scale bar represents 0.1 amino acid substitutions per site.