Figure 6 Neighbor-joining phylogenetic tree of ionotropic receptors (IRs)

The NJ phylogenetic analysis of IRs of E. hippophaecolus (EhipIR, red) was performed with reference IRs of H.armigera (HarmIR, black), D. melanogaster (DmelIR, Diptera, blue) and IRs of other Lepidoptera species (black). The IRs groups labelled with red circle were reference of Van Schooten[82]. The stability of the nodes was assessed by bootstrap analysis with 1,000 replications, and only bootstrap values ≥0.6 are shown at the corresponding nodes. The scale bar represents 0.5 substitutions per site.