数字农科院2.0

Identification and characterization of a conserved odorant receptor that specifically responds to cis-jasmone

文献类型： 外文期刊

作者： Bo Wang#; Tianyu Huang#; Yuan Yao; Frederic Francis; Chuncai Yan*; Guirong Wang*; Bing Wang*

期刊名称： Journal of Integrative Agriculture

ISSN： 2095-3119

年卷期： 2022 年

页码：

收录情况： JCR（2021版） ; CSCD（2020-2021年度） ; 农林核心（2020版） ; 科技核心（2020版）

摘要： Herbivore-induced plant volatiles (HIPVs) play a key role in the interactions between plants and herbivorous insects, as HIPVs can promote or deter herbivorous insects' behavior. While aphids are common, serious phloem-feeding pests in farmland ecosystems, little is known about how aphids use their sensitive olfactory system to detect HIPVs. In this study, the antennal transcriptomes of the aphid species Megoura crassicauda were sequenced, and expression level analyses of M. crassicauda odorant receptors (ORs) were carried out. To investigate the chemoreception mechanisms used by M. crassicauda to detect HIPVs, we performed in vitro functional studies of the ORs using 11 HIPVs reported to be released by aphid-infested plants. In total, 54 candidate chemosensory genes were identified, among which 20 genes were ORs. McraOR20 and McraOR43 were selected for further functional characterization because their homologs in aphids were quite conserved and the expression levels in antennae of M. crassicauda were relatively high. The results showed that McraOR20 spe

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