Identification and functional characterization of an odorant receptor in pea aphid, Acyrthosiphon pisum

• 来源期刊: 中国昆虫科学（英文版）
• 关键词: Acyrthosiphon pisum electroantennogram heterologous expression odorant receptor
• 年，卷（期）: 2019,（1）
• 页码范围: 58-67
• 页数: 10页
• 语种: 英文
• DOI: 10.1111/1744-7917.12510

摘要

The sensitive olfactory system is necessary for survival of insects.Odorant receptors (ORs) are located on the dendrites of olfactory receptor neurons and play a critical role in odor detection.Insect ORs are functionally analyzed via heterologous expression in a Xenopus oocyte system using a two-electrode voltage-clamp (TEVC) electrophysiological recording.Here,we have identified a novel OR in the pea aphid,Acyrthosiphonpisum,then we cloned and named it ApisOR4.We analyzed the ApisOR4 tissue expression patterns and found expression only in antennae tissues.Further functional analysis using TEVC revealed that ApisOR4 is broadly tuned to eight volatiles,which elicit electrophysiological response in pea aphid antennae.This study provides an initial functional analysis of aphid ORs and identifies candidate volatiles to be used in developing new strategies for aphid control.