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A conserved odorant receptor identified from antennal transcriptome of megoura crassicauda that specifically responds to cis-jasmone

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Journal of Integrative Agriculture 2022年第7期21卷 2042-2054页

作者： WANG Bo HUANG Tian-yu YAO Yuan Frederic FRANCIS YAN Chun-cai WANG Gui-rong WANG Bing Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity Tianjin Normal UniversityTianjin 300387P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Guangdong Laboratory for Lingnan Modern Agriculture(Shenzhen Branch) Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120P.R.China Functional and Evolutionary Entomology Gembloux Agro-Bio TechUniversity of LiegeGembloux 5030Belgium

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’*** aphids are common and serious phloem-feeding pests in farmland ecosystems,little is known about how aphids use their sensitive olfactory system to detect *** this study,the antennal transcriptomes of the aphid species megoura crassicauda were sequenced,and expression level analyses of *** odorant receptors(ORs)were carried *** investigate the chemoreception mechanisms that *** uses to detect HIPVs,we performed in vitro functional studies of the ORs using 11 HIPVs reported to be released by aphid-infested *** total,54 candidate chemosensory genes were identified,among which 20 genes were ***20 and McraOR43 were selected for further functional characterization because their homologs in aphids were quite conserved and their expression levels in antennae of *** were relatively *** results showed that McraOR20 specifically detected cis-jasmone,as did its ortholog ApisOR20 from the pea aphid Acyrthosiphon pisum,while McraOR43 did not respond to any of the HIPV chemicals that were *** study characterized the ability of the homologous OR20 receptors in the two aphid species to detect HIPV cis-jasmone,and provides a candidate olfactory target for mediating aphid behaviors.

关键词： megoura crassicauda transcriptome chemosensory genes odorant receptors cis-jasmone

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