Asian corn borer pheromone binding protein 3, a candidate for evolving specificity to the 12-tetradecenyl acetate sex pheromone

► 5 PBPs and 2 SNMPs were found in an antennal transcriptome. ► PBPs 2 and 3 are expressed at high levels in male ACB and ECB antennae. ► PBP3 has the greatest number of nonsynonymous mutations among ACB and ECB PBPs. ► ACB PBP3 may be a candidate for coevolving specificity to 12-tetradecenyl acetate.