A Drosophila male pheromone affects female sexual receptivity
A Drosophila male pheromone affects female sexual receptivity
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DOI：
10.1098/rspb.2005.3332
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发表时间：
2006-02-07
影响因子：
4.7
通讯作者：
Ferveur, JF
中科院分区：
文献类型：
--
作者：
Grillet, M;Dartevelle, L;Ferveur, JF
性信息素是选择配偶经常需要的化学信号，但它们对配偶偏好的相互作用很少在两性身上表现出来。在果蝇中，主要的角质碳氢化合物(CHS)是两性二型性的：只有雌性才产生7，11-二烯，而7-三十烷(7-T)是主要的雄性CH。雄性通常更喜欢含有7，11-二烯的雌性，但7-T对雌性行为的作用尚不清楚。在有香气的雄性中，对照雌性交配更快，更频繁地与雄性携带更高水平的7-T，这表明这种CH对黑腹果蝇雌性是一种化学刺激剂。对照雌体--但不是无触角的雌体--可以检测到7-T的微小变异。最后，我们发现，desat1突变体雌性对7-T的反应发生了变化，这为该基因提供了一个额外的作用，该基因影响了两性对涉及配偶选择的信息素的产生和感知。
Sex pheromones are chemical signals frequently required for mate choice, but their reciprocal role on mate preference has rarely been shown in both sexes. In Drosophila melanogaster flies, the predominant cuticular hydrocarbons (CHs) are sexually dimorphic: only females produce 7,11-dienes, whereas 7-tricosene (7-T) is the principal male CH. Males generally prefer females with 7,11-dienes, but the role of 7-T on female behaviour remains unclear. With perfumed males, control females mated faster and more often with males carrying increased levels of 7-T showing that this CH acts as a chemical stimulant for D. melanogaster females. Control females-but not antenna-less females-could detect small variation of 7-T. Finally, our finding that desat1 mutant female showed altered response towards 7-T provides an additional role for this gene which affects the production and the perception of pheromones involved in mate choice, in both sexes.