Phenotypic plasticity and selection in Drosophila life history evolution .2. Diet, mates and the cost of reproduction
Phenotypic plasticity and selection in Drosophila life history evolution .2. Diet, mates and the cost of reproduction
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DOI：
10.1007/s000360050023
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发表时间：
1997-05-01
影响因子：
2.1
通讯作者：
Rose, MR
中科院分区：
文献类型：
--
作者：
Chippindale, AK;Leroi, AM;Rose, MR
虽然生物学家通常使用对环境操纵的反应作为对选择的进化反应的指导，但表型可塑性和遗传变化之间的关系通常并不明确。实验室果蝇种群的生活史是为数不多的实验系统，同时提供信息的表型可塑性和进化轨迹。我们采用了两个复制的选择性分化的股票（推迟老化股票和他们的控制; 10个人口总数）和两个不同的环境操作（营养和交配）的组合，探索表型可塑性和进化轨迹之间的经验关系。虽然使用这两种方法获得的结果之间存在一些相似之处，但也存在重要的差异。特别是，随着两种反应的生物学特征的细节增加，它们的差异也会增加。尽管如此，环境操纵与进化分歧的结合提供了有关毛毡苔属生活史、卡路里储备和生殖生理学之间生物学联系的宝贵信息。
While it is commonplace for biologists to use the response to environmental manipulation as a guide to evolutionary responses to selection, the relationship between phenotypic plasticity and genetic change is not generally well-established. The life-histories of laboratory Drososphila populations are among the few experimental systems which simultaneously afford information on phenotypic plasticity and evolutionary trajectories. We employed a combination of two replicated selectively differentiated stocks (postponed aging stocks and their controls; 10 populations in total) and two different environmental manipulations (nutrition and mating) to explore the empirical relationship between phenotypic plasticity and evolutionary trajectories. While there are a number of parallels between the results obtained using these two approaches, there are important differences. In particular, as the detail of the biological characterization of either type of response increases, so their disparities multiply. Nonetheless, the combination of environmental manipulation with evolutionary divergence provides valuable information about the biological connections between life-history, calorie reserves, and reproductive physiology in Drososphila.