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Functional characterization of chemosensory proteins in response to artificial light treatment in Thalassodes immissaria

文献类型： 外文期刊

作者： Yao, Qiong 1 ; Liang, Zhantu 2 ; Quan, Linfa 1 ; Chen, Bingxu 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Key Lab Green Prevent & Control Fruits & Vegetable, Guangdong Prov Key Lab High Technol Plant Protect, Inst Plant Protect,Minist Agr & Rural Affairs, Guangzhou 510640, Peoples R China

2.South China Normal Univ, Sch Life Sci, Guangzhou, Peoples R China

关键词： Thalassodes immissaria; chemosensory protein; sequence analysis; molecular docking; artificial light at night; stress response

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.1； 五年影响因子：4.4 ）

ISSN： 1526-498X

年卷期： 2023 年 79 卷 5 期

页码：

收录情况： SCI

摘要： BACKGROUNDChemosensory proteins (CSPs) play a vital role in the response to environmental stimuli in insects. However, the involvement of insect CSPs in the stress response to night-time environmental changes has not been examined. RESULTSIn the current study, four TiCSP genes were first cloned from Thalassodes immissaria by transcriptome and RACE-PCR techniques. TiCSPs had typical characteristics of insect CSPs, including a highly conserved four-cysteine motif and olfactory-specific protein D (OS-D) or OS-D superfamily domains. TiCSP1-4 were clustered classified within different clades in a phylogenetic analysis and were differentially expressed at all developmental stages. Under night-time artificial light stress, the expression levels of TiCSP1 in males were significantly decreased at 24 h, and those of TiCSP2 were decreased in both adult sexes at 48 h. In a molecular docking analysis, TiCSPs showed relatively higher binding affinities with sex pheromone components than with host plant volatile molecules. CONCLUSIONTaking the reduced expression levels of TiCSPs and binding affinities into account, TiCSP1 and TiCSP2 are involved in the stress response processes of T. immissaria under light treatment. Our study supplies basic data for the evaluation of the effects of light interference control technology - an emerging physical control measure on nontarget pests of lychee orchards. (c) 2023 Society of Chemical Industry.

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