Molecular characterization and ligand-binding properties of six odorantbinding proteins (OBPs) from Aphis gossypii

Odorant-binding proteins (OBPs) play a significant role in the olfactory signal transduction of insects and help them locate hosts, oviposition sites, and mating partners. The sap-sucking insect, Aphis gossypii Glover (Homoptera: Aphididae), is a destructive cosmopolitan pest and yet the molecular m...

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Published inJournal of Asia-Pacific entomology pp. 914 - 925
Main Authors Xue-Ke Gao, Shuai Zhang, Jun-Yu Luo, Chun-Yi Wang, Li-Min Lü, Li-Juan Zhang, Xiang-Zhen Zhu, Li Wang, Jin-Jie Cui
Format Journal Article
LanguageEnglish
Published 한국응용곤충학회 01.09.2018
Subjects
농수해양학
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Summary:Odorant-binding proteins (OBPs) play a significant role in the olfactory signal transduction of insects and help them locate hosts, oviposition sites, and mating partners. The sap-sucking insect, Aphis gossypii Glover (Homoptera: Aphididae), is a destructive cosmopolitan pest and yet the molecular mechanisms by which A. gossypii perceives pheromones and host volatiles remain unknown. In this study, we identified and characterized 6 OBPs, using the A. gossypii RNA-seq transcriptome dataset previously constructed in our laboratory. Real-time PCR indicated specific expression patterns of the 6 genes, which had different levels of expression based on development stage, tissue, morph, and life cycle. In addition, binding specificities of the 6 proteins investigated using the ligand-binding assays showed that all 6 OBPs exhibited high binding affinities towards Phlorizin dehydrate while AgosOBP3 and AgosOBP4 had strong affinity to beta-ionone and AgosOBP8 displayed higher binding affinities for Nerolidol and Cis-3-hexenyl acetate compared to other OBPs. KCI Citation Count: 2
ISSN:1226-8615
1876-7990