Production and evolution pattern of "fruity smell" aggregation pheromones in genusDrosophila
Production and evolution pattern of "fruity smell" aggregation pheromones in genusDrosophila
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果蝇属“果香”聚集信息素的产生与进化模式
DOI：
10.1111/jse.12648
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发表时间：
2020
影响因子：
3.7
通讯作者：
Luo Yi-Bo
中科院分区：
文献类型：
--
作者：
Zhang Wu-Fan;Liu Lu-Mei;He Shan;Lu Bin-Yan;Luo Yi-Bo
昆虫产生信息素，在其一生中发挥一系列生态功能。化学组成、生产模式和种间特异性为实现其功能和生物学意义提供了信息。几种果蝇产生一类被认为是“果味”的挥发性酯，然而，这些“果味”挥发物在果蝇属中的产生模式和生态功能知之甚少。本文采用顶空固相微萃取（SPME）方法，研究了外来果蝇挥发性信息素的产生模式以及可能影响信息素产生的因素，包括交配、取食条件、成蝇年龄和地理分布。本文还探讨了果蝇属14种果蝇挥发性信息素的进化和产生方式。我们的结果表明，maleD.迁入的成蝇以相对稳定的模式产生三种雄性特有的挥发性酯信息素，其也被认为是“果味”化学物质。此外，还发现了一系列具有相似结构和化学性质的“果味”酯类信息素。virilisandD.移民种组，而D.黑腹种组雄蝇酯挥发性信息素的产生与雌蝇对寄主植物的需求有一定的对应关系。综合这些挥发性物质的产生和进化模式，我们推测果蝇“果味”信息素所反映的昆虫与寄主植物之间的相互作用。
Insects produce pheromones to serve a range of ecological functions throughout their lifetime. The chemical composition, production pattern, and interspecies specificity provide information for carrying out their function and biological significance. Several species ofDrosophilaproduce a class of volatile esters considered as “fruity smells”; however, the production pattern and ecological functions of these “fruity smell” volatiles in genusDrosophilaare poorly understood. Here, using the headspace solid‐phase microextraction (SPME) method, we tested the production pattern of volatile pheromones inDrosophila immigransand factors that possibly affected pheromone production, including mating, feeding conditions, age of adult flies, and geographical distribution. We also explored the evolution and production pattern of volatile pheromones in 14 species of genusDrosophila. Our result showed that maleD. immigransadult flies produce three male‐specific volatile ester pheromones, which are also considered as “fruity smell” chemicals, in a relatively stable pattern. In addition, a series of “fruity smell” ester pheromones with similar structure and chemical properties were found to appear in the species ofD. virilisandD. immigransspecies group, but not in the species ofD. melanogasterspecies group. The ester volatile pheromone production of male flies has a correspondence with the female's demand for host plants. Integrating the production and evolution pattern of these volatile chemicals, we inferred the interaction between insects and host plants reflected in theDrosophila“fruity smell” pheromones.