Genetic Correlations among Developmental and Contextual Behavioral Plasticity in Drosophila melanogaster.
Genetic Correlations among Developmental and Contextual Behavioral Plasticity in Drosophila melanogaster.
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果蝇发育和情境行为可塑性之间的遗传相关性。
DOI：
10.1086/692010
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Nuzhdin,SergeyV
中科院分区：
文献类型：
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作者：
Saltz,JuliaB;Lymer,Seana;Gabrielian,Jessica;Nuzhdin,SergeyV
包括行为在内的性状之间的相关性很重要，因为遗传相关的性状可能不会独立进化。最近，行为相关性研究已经扩展到不仅包括平均水平行为的相关性，还包括行为可塑性，即个体对环境刺激的反应改变其行为的程度。行为可塑性之间的正相关性意味着，在一种方式上具有行为可塑性的个体或基因型在其他方式上也可能具有可塑性;负相关性可能意味着权衡。在这里，我们研究厌恶气味条件反射（学习）在两个时间点和可塑性化蛹位点选择行为跨基板在一个面板ofDrosophilagenotypes。这些行为代表了不同类型的行为可塑性：情境可塑性描述了对当前刺激的行为反应，而发育可塑性描述了对最近过去刺激的记忆体验的行为反应。我们发现，学习成绩和可塑性化蛹选址行为正相关的遗传，代表了第一个例子的遗传相关性之间的发展和上下文的可塑性。这些发现意味着，生态和进化理论的变化，在一个单一的行为可塑性的维度可能是不完整的。
Correlations among traits, including behaviors, are important because traits that are genetically correlated may not evolve independently. Recently, behavioral-correlations research has expanded to include correlations not only in mean-level behaviors but also in behavioral plasticity, that is, the degree to which individuals change their behavior in response to environmental stimuli. Positive correlations among behavioral plasticities would imply that individuals or genotypes that are behaviorally plastic in one way may also be plastic in other ways; negative correlations could imply trade-offs. Here, we examine aversive odor conditioning (learning) at two time points and plasticity in pupation site selection behavior across substrates in a panel ofDrosophilagenotypes. These behaviors represent different types of behavioral plasticity: contextual plasticity describes behavioral responses to stimuli that are currently present, while developmental plasticity describes behavioral responses to remembered experiences with stimuli in the recent past. We find that learning scores and plasticity in pupation site selection behavior are positively genetically correlated, representing the first example of a genetic correlation between developmental and contextual plasticity. These findings imply that ecological and evolutionary theories focusing on variation in a single dimension of behavioral plasticity may be incomplete.