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Molecular Characterization and Sex Distribution of Chemosensory Receptor Gene Family Based on Transcriptome Analysis of Scaeva pyrastri

文献类型: 外文期刊

作者: Li, Xiao-Ming 1 ; Zhu, Xiu-Yun 1 ; He, Peng 2 ; Xu, Lu 3 ; Sun, Liang 4 ; Chen, Li 1 ; Wang, Zhi-Qiang 1 ; Deng, Dao-Gui; 1 ;

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

2.Guizhou Univ, State Key Lab Breeding Base Green Pesticide & Agr, Key Lab Green Pesticide & Agr Bioengn, Minist Educ, Guiyang 550003, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing, Jiangsu, Peoples R China

4.Chinese Acad Agr Sci, Tea Res Inst, Minist Agr, Key Lab Tea Biol & Resources Utilizat, Hangzhou, Zhejiang, Peoples R China

期刊名称:PLOS ONE ( 影响因子:3.24; 五年影响因子:3.788 )

ISSN: 1932-6203

年卷期: 2016 年 11 卷 5 期

页码:

收录情况: SCI

摘要: Chemosensory receptors play key roles in insect behavior. Thus, genes encoding these receptors have great potential for use in integrated pestmanagement. The hover fly Scaeva pyrastri (L.) is an important pollinating insect and a natural enemy of aphids, mainly distributed in the Palearctic and Nearctic regions. However, a systematic identification of their chemosensory receptor genes in the antennae has not been reported. In the present study, we assembled the antennal transcriptome of S. pyrastri by using Illumina sequencing technology. Analysis of the transcriptome data identified 60 candidate chemosensory genes, including 38 for odorant receptors (ORs), 16 for ionotropic receptors (IRs), and 6 for gustatory receptors (GRs). The numbers are similar to those of other Diptera species, suggesting that we were able to successfully identify S. pyrastri chemosensory genes. We analyzed the expression patterns of all genes by using reverse transcriptase PCR (RT-PCR), and found that some genes exhibited sex-biased or sex-specific expression. These candidate chemosensory genes and their tissue expression profiles provide information for further studies aimed at fully understanding the molecular basis behind chemoreception-related behaviors in S. pyrastri.

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