Phenotypic integration plasticity in Daphnia magna: an integral facet of G × E interactions
Phenotypic integration plasticity in Daphnia magna: an integral facet of G × E interactions
复制标题
大型溞的表型整合可塑性：G × E 相互作用的一个组成部分
DOI：
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发表时间：
2014
影响因子：
2.1
通讯作者：
Hélène Collin
中科院分区：
文献类型：
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作者：
S. Plaistow;Hélène Collin
表型整合可以定义为描述生物体的行为、生理和形态性状之间的多元关系网络。表型整合可塑性是指表型整合模式在环境或个体发育中的变化。由于表型可塑性的研究主要集中在单一性状上，因此G × E相互作用通常被认为是两个或多个环境中性状表达大小的差异。然而，许多可塑性反应涉及多个性状的协调反应，提高了不同环境中性状表达的相对差异是G × E相互作用的重要但经常被忽视的来源的可能性。在这里，我们使用表型变化向量来统计比较从四个不同的欧洲种群收集的六个大型蚤克隆的多变量生活史可塑性。对于所研究的六个克隆中的两个，可塑性反应幅度的差异在统计学上是可区分的。然而，表型整合可塑性的差异是统计学上可区分的所有6个克隆研究，表明表型整合可塑性是一个重要组成部分的G × E的相互作用，可能会被错过，除非使用适当的多变量分析。
Phenotypic integration can be defined as the network of multivariate relationships among behavioural, physiological and morphological traits that describe the organism. Phenotypic integration plasticity refers to the change in patterns of phenotypic integration across environments or ontogeny. Because studies of phenotypic plasticity have predominantly focussed on single traits, a G × E interaction is typically perceived as differences in the magnitude of trait expression across two or more environments. However, many plastic responses involve coordinated responses in multiple traits, raising the possibility that relative differences in trait expression in different environments are an important, but often overlooked, source of G × E interaction. Here, we use phenotypic change vectors to statistically compare the multivariate life‐history plasticity of six Daphnia magna clones collected from four disparate European populations. Differences in the magnitude of plastic responses were statistically distinguishable for two of the six clones studied. However, differences in phenotypic integration plasticity were statistically distinguishable for all six of the clones studied, suggesting that phenotypic integration plasticity is an important component of G × E interactions that may be missed unless appropriate multivariate analyses are used.
DOI：
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发表时间：
2015-10
期刊：
--
影响因子：
--
作者：
Douglas M. Bates;M. Maechler;Ben Bolker;Steven C. Walker
通讯作者：
Douglas M. Bates;M. Maechler;Ben Bolker;Steven C. Walker