Diversity and Molecular Evolution of Odorant Receptor in Hemipteran Insects.

ABSTRACT: Olfaction is a critical physiologic process for insects to interact with the environment, especially plant-emitted volatiles, during which odorant receptors (ORs) play an essential role in host recognition. Although OR gene evolution has been studied in many insect orders, a comprehensive evolutionary analysis and expression of OR gene gain and loss events among diverse hemipteran species are still required. In this study, we identified and analyzed 887 OR genes from 11 hemipteran species. The number of OR genes discovered in each species ranged from less than ten to hundreds. Phylogenetic analysis revealed that all identified Hemiptera OR genes were classified into seven major clades. Gene gain and loss events of OR have occurred in several species. Then, by positive selection, we discove

SUBMITTER: Tian J 

PROVIDER: S-EPMC8878081 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature