Saltz Julia B, Bell Alison M, Flint Jonathan, Gomulkiewicz Richard, Hughes Kimberly A, Keagy Jason
Rice University Houston Texas.
University of Illinois at Urbana-Champaign Urbana Illinois.
Ecol Evol. 2018 May 8;8(12):6342-6353. doi: 10.1002/ece3.4128. eCollection 2018 Jun.
Genotype-by-environment interaction (G × E), that is, genetic variation in phenotypic plasticity, is a central concept in ecology and evolutionary biology. G×E has wide-ranging implications for trait development and for understanding how organisms will respond to environmental change. Although G × E has been extensively documented, its presence and magnitude vary dramatically across populations and traits. Despite this, we still know little about why G × E is so evident in some traits and populations, but minimal or absent in others. To encourage synthetic research in this area, we review diverse hypotheses for the underlying biological causes of variation in G × E. We extract common themes from these hypotheses to develop a more synthetic understanding of variation in G × E and suggest some important next steps.
基因型与环境互作（G×E），即表型可塑性中的遗传变异，是生态学和进化生物学中的核心概念。G×E对性状发育以及理解生物体如何应对环境变化具有广泛影响。尽管G×E已有大量记录，但其在不同种群和性状中的存在情况及程度差异极大。尽管如此，我们对于为何G×E在某些性状和种群中如此明显，而在其他性状和种群中却极小或不存在，仍知之甚少。为鼓励该领域的综合研究，我们综述了关于G×E变异潜在生物学原因的各种假说。我们从这些假说中提取共同主题，以更全面地理解G×E的变异，并提出一些重要的后续步骤。
