Costs and limits of phenotypic plasticity: Tests with predator-induced morphology and life history in a freshwater snail
Costs and limits of phenotypic plasticity: Tests with predator-induced morphology and life history in a freshwater snail
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DOI：
10.1007/s000360050100
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发表时间：
1998-07-01
影响因子：
2.1
通讯作者：
DeWitt, TJ
中科院分区：
文献类型：
--
作者：
DeWitt, TJ
使用先前对淡水蜗牛Physa异旋体捕食者诱导的形态和生活史的研究数据测试了表型可塑性进化的潜在限制。如果兼性发育与能量消耗、发育不稳定或发育范围受损有关，可塑性的好处就会降低。我检查了 29 个异旋球菌科的两个性状的可塑性，看看它是否与生长速度或繁殖力、科内表型变异或产生极端表型的潜力有关。仅找到了对其中一项潜在限制的支持。与壳形状可塑性相关的生长速率存在很强的负选择梯度（β = -0.3，P
Potential constraints on the evolution of phenotypic plasticity were tested using data from a previous study on predator-induced morphology and life history in the freshwater snail Physa heterostropha. The benefit of plasticity can be reduced if facultative development is associated with energetic costs, developmental instability, or an impaired developmental range. I examined plasticity in two traits for 29 families of P. heterostropha to see if it was associated with growth rate or fecundity, within-family phenotypic variance, or the potential to produce extreme phenotypes. Support was found for only one of the potential constraints. There was a strong negative selection gradient for growth rate associated with plasticity in shell shape (beta = -0.3, P