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Chemosensory Gene Families in the Oligophagous Pear Pest Cacopsylla chinensis (Hemiptera: Psyllidae)

文献类型： 外文期刊

作者： Xu, Ji-Wei 1 ; Zhu, Xiu-Yun 1 ; Chao, Qiu-Jie 1 ; Zhang, Yong-Jie 1 ; Yang, Yu-Xia 1 ; Wang, Ran-Ran 1 ; Zhang, Yu 1 ; Xi 1 ;

作者机构： 1.Huaibei Normal Univ, Coll Life Sci, Huaibei 235000, Peoples R China

2.Shandong Normal Univ, Coll Life Sci, Key Lab Anim Resistance Res, Jinan 250000, Shandong, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Plant Protect, State Key Lab Breeding Base, Key Lab Food Qual & Safety Jiangsu Prov, Nanjing 210014, Jiangsu, Peoples R China

关键词： Cacopsylla chinensis; oligophagous pest; chemosensory genes; transcriptome analysis; tissue expression

期刊名称：INSECTS （ 影响因子：2.769； 五年影响因子：3.046 ）

ISSN： 2075-4450

年卷期： 2019 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Chemosensory systems play an important role in insect behavior, and some key associated genes have potential as novel targets for pest control. Cacopsylla chinensis is an oligophagous pest and has become one of the main pests of pear trees, but little is known about the molecular-level means by which it locates its hosts. In this study, we assembled the head transcriptome of C. chinensis using Illumina sequencing, and 63,052 Unigenes were identified. A total of 36 candidate chemosensory genes were identified, including five different families: 12 odorant binding proteins (OBPs), 11 chemosensory proteins (CSPs), 7 odorant receptors (ORs), 4 ionotropic receptors (IRs), and 2 gustatory receptors (GRs). The number of chemosensory gene families is consistent with that found in other Hemipteran species, indicating that our approach successfully obtained the chemosensory genes of C. chinensis. The tissue expression of all genes using quantitative real-time PCR (qRT-PCR) found that some genes displayed male head, female head, or nymph-biased specific/expression. Our results enrich the gene inventory of C. chinensis and provide valuable resources for the analysis of the functions of some key genes. This will help in developing molecular targets for disrupting feeding behavior in C. chinensis.

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