Figure 5 Neighbor-joining phylogenetic tree of odorant receptors (ORs)

The NJ phylogenetic analysis of ORs of E. hippophaecolus (EhipOR, red) was performed with reference ORs of D. melanogaster (DmelOR, Diptera, blue) and ORs of Lepidoptera species (black). The red circles refer to Orco and PR lineage. 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.

以黑腹果蝇（Drosophila melanogaster, DmelOR，双翅目，蓝色）的嗅觉受体（Olfactory Receptor, OR）以及鳞翅目物种的嗅觉受体（黑色）作为参考序列，对沙棘木蠹蛾（E. hippophaecolus）的嗅觉受体（EhipOR，红色）进行邻接法（Neighbor-Joining, NJ）系统发育分析。红色圆圈代表嗅觉受体共受体（Odorant Receptor Co-receptor, Orco）与性信息素受体（Pheromone Receptor, PR）进化支。节点的稳定性经1000次重复自展检验评估，仅在对应节点标注≥0.6的自展支持值。标尺代表每位点0.5次替换。