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De novo analysis of the oriental armyworm Mythimna separata antennal transcriptome and expression patterns of odorant-binding proteins

文献类型： 外文期刊

作者： Chang, Xiang-Qian 1 ; Nie, Xiao-Pei 1 ; Zhang, Zan 1 ; Zeng, Fang-Fang 1 ; Lv, Liang 2 ; Zhang, Shu 2 ; Wang, Man-Qun 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China

2.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Hubei Prov Key Lab Crop Dis Insect Pests & Weeds, Wuhan 430068, Peoples R China

关键词： Antennal transcriptome;Chemosensory proteins;Expression patterns;Mythimna separata

期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS （ 影响因子：2.674； 五年影响因子：2.941 ）

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收录情况： SCI

摘要： To better understand the olfactory mechanisms in the oriental armyworm Mythinarta separate, one of the most serious pests of cereals, an antennal transcriptome was constructed in this study. A total of 130 olfactory related transcripts were identified. These transcripts were predicted to encode 32 odorant-binding proteins (OBPs), 16 chemosensory proteins (CSPs), 71 olfactory receptors (ORs), 8 ionotropic receptors (IRs), 1 gustatory receptor (GR) and 2 sensory neuron membrane proteins (SNMPs). Q-PCR analysis of the temporal expression profiles of seven OBPs in different tissues indicated that, except for MsepOBP19 which was highly expressed in the wings of 0-day-old adult and MsepOBP20 which was low expressed in all tissues, other tested MsepOBPs were significantly more highly expressed in the antenna than in the head (antenna excluded), thorax, abdomen, legs and wings. The expression levels of MsepOBPs were diverse in different life stages (differed on eclosion days). MsepOBP5 exhibited female-biased expression in 0- and 5-day-old adult, while no gender bias in 1- and 3-day-old adult was detected and similar expression profiles were found for MsepOBP7, 20, 24 and 26. In addition, we found that although the expression of MsepOBP22 was female biased in 0- and 5-day-old adult, in the 3-day-old adult it was male-biased. Our findings established a foundation for future studies of the functions of olfactory proteins in M. separata.

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