文献类型： 外文期刊

作者： Wang, N. ¹ ; Wang, N. X. ¹ ; Niu, L. M. ² ; Bian, S. N. ¹ ; Xiao, J. H. ³ ; Huang, D. W. ¹ ;

作者机构： 1.Shandong Agr Univ, Coll Plant Protect, Tai An 271018, Shandong, Peoples R China

2.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Danzhou, Hainan, Peoples R China

3.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China

关键词： fig wasps;habitat;predicting function

期刊名称：INSECT MOLECULAR BIOLOGY （ 影响因子：3.585； 五年影响因子：3.215 ）

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收录情况： SCI

摘要： The interaction between figs and their pollinating wasps is regarded as a model system for studying specialized co-evolved mutualism. Chemoreception of fig wasps plays an important role in this interaction, and odorant-binding proteins (OBP) function in the first step of odorant detection. The OBP repertoire of the fig wasp Ceratosolen solmsi is reported to be one of the smallest among insects; however, it is unknown how these OBPs are related to the complicated mating process occurring within the fig cavity and the extreme host specificity of the species. In the present study, we combined a structural analysis of the conserved cysteine pattern and motif order, a phylogenetic analysis, and previous studies on ligand-binding assays to deduce the function of OBPs. We also quantified the expression of OBP genes in different life stages of female and male fig wasps by using real-time quantitative PCR, which can help to predict the function of these genes. The results indicated that CsolOBP1 and CsolOBP2 (or CsolOBP5) in males may bind to pheromones and play important roles in mate choice, whereas CsolOBP4 and CsolOBP5 may primarily function in host localization by females through binding of volatile compounds emitted by receptive figs.