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Assessing Differences in Sperm Competitive Ability in Drosophila
Published on: August 22, 2013
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在交配后,多索菲拉雄性激素的补充
Jean-François Ferveur1, Jérôme Cortot2, Bernard Moussian3
1Centre Des Sciences du Goût Et de L'Alimentation, UMR6265 CNRS, UMR1324 INRA, Université de Bourgogne Franche-Comté, 6, Bd Gabriel, 21000, Dijon, France. jean-francois.ferveur@u-bourgogne.fr.
Journal of chemical ecology
|January 25, 2024
概括
雄性果通过重复交配转移较少的11-cis-Vaccenyl酸盐 (cVa) 费洛蒙. 这种费洛蒙变异可能会影响未来的成年人反应,这表明cVa在昆虫交流中的作用更为丰富.
科学领域:
- * 昆虫的化学生态学
- * 行为神经科学
- * 生殖生物学 生殖生物学
背景情况:
- * 昆虫外分腺产物调解关键行为,如沟通,防御和聚合.
- *在Drosophila melanogaster中,11-cis-Vaccenyl乙酸 (cVa) 是一种关键的激素,由射精球合成并释放出来,影响社会行为.
- *在交配期间的cVa转移会影响雌性聚合,求爱和雄性侵略.
研究的目的:
- * 为了研究雄性果在连续交配后补充cVa水平的能力.
- * 量化在多次交配后转移给雌性的cVa和雄性残留cVa的数量.
- * 探索可变cVa转移对成年人反应的影响以及这种费洛蒙的更广泛作用.
主要方法:
- * 进行了对照和脱突变雄性Drosophila melanogaster的交配实验.
- *记录了交配频率,持续时间和延迟时间.
- *进行了对女性转移的cVa和男性残留cVa的量化.
主要成果:
- * 交配时间在多次交配中保持一致.
- * 对雌性转移的cVa数量随着连续交配而下降.
- * 费洛蒙补充不能跟上在短时间内与生理相关的交配频率的步伐.
结论:
- *雄性在重复交配时转移不同量的cVa,这表明补充不完全.
- * 这种cVa转移的定量变化表明后代可能会经历可变的发育暴露于费洛蒙.
- *这些发现表明cVa的自然作用比以前理解的要复杂得多,不仅仅是单一的交配事件.
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