Expression of chemosensory proteins in the tsetse fly Glossina morsitans morsitans is related to female host-seeking behaviour
文献类型: 外文期刊
作者: Liu, R. 1 ; He, X. 1 ; Lehane, S. 2 ; Lehane, M. 2 ; Hertz-Fowler, C. 3 ; Berriman, M. 3 ; Field, L. M. 1 ; Zhou, J-J. 1 ;
作者机构: 1.Rothamsted Res, Dept Biol Chem, Harpenden AL5 2JQ, Herts, England
2.Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England
3.Wellcome Trust Sanger Inst, Hinxton, England
4.Zhejiang Acad Agr Sci, Hangzhou, Zhejiang, Peoples R China
关键词: chemosensory protein;tsetse fly;gene expression;trypanosomiasis;nagana
期刊名称:INSECT MOLECULAR BIOLOGY ( 影响因子:3.585; 五年影响因子:3.215 )
ISSN: 0962-1075
年卷期: 2012 年 21 卷 1 期
页码:
收录情况: SCI
摘要: Chemosensory proteins (CSPs) are a class of soluble proteins present in high concentrations in the sensilla of insect antennae. It has been proposed that they play an important role in insect olfaction by mediating interactions between odorants and odorant receptors. Here we report, for the first time, the presence of five CSP genes in the tsetse fly Glossina morsitans morsitans, a major vector transmitting nagana in livestock. Real-time quantitative reverse transcription PCR showed that three of the CSPs are expressed in antennae. One of them, GmmCSP2, is transcribed at a very high level and could be involved in olfaction. We also determined expression in the antennae of both males and females at different life stages and with different blood feeding regimes. The transcription of GmmCSP2 was lower in male antennae than in females, with a sharp increase in 10-week-old flies, 48 h after a bloodmeal. Thus there is a clear relationship between CSP gene transcription and host searching behaviour. Genome annotation and phylogenetic analyses comparing G. morsitans morsitans CSPs with those of other Diptera showed rapid evolution after speciation of mosquitoes.
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