CAREER: The Role of Phenotypic Plasticity in Adaptive Evolution

职业:表型可塑性在适应性进化中的作用

基本信息

  • 批准号:
    0846175
  • 负责人:
  • 金额:
    $ 88.38万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2009
  • 资助国家:
    美国
  • 起止时间:
    2009-02-01 至 2015-09-30
  • 项目状态:
    已结题

项目摘要

It has long been recognized that the observable characteristics or traits of an organism (i.e. its phenotype) are determined by the interaction of genes and the environment. Phenotypic plasticity refers to the extent to which a given set of genes produces different phenotypes depending on the environment. Yet, because this environmentally induced variation is not inherited, phenotypic plasticity has historically been considered unimportant in the evolutionary process. Recent research and new technological advancements in the measurement of gene expression, suggest that phenotypic plasticity may actually be an important mechanism facilitating adaptive evolutionary change. The research proposed here will use populations of Trinidadian guppies known to be adapted to different environments as a model system. Using a combination of field transplant and lab breeding experiments, the researcher will examine the short term and long term consequences of plastic changes in both the phenotype and gene expression. This study represents the first attempt to document the role of plasticity in the adaptive evolution. The researcher will integrate the work on phenotypic plasticity in guppies with an education and outreach plan. This plan includes the development of more effective undergraduate teaching methods, increased participation in research by underrepresented groups, and professional development and training for K-12 educators.
长期以来,人们已经认识到,生物体的可观察特征(即其表型)是由基因和环境的相互作用决定的。表型可塑性指的是一组给定的基因根据环境产生不同表型的程度。然而,由于这种环境诱导的变异不是遗传的,表型可塑性在进化过程中历来被认为是不重要的。最近在基因表达测量方面的研究和新的技术进步表明,表型可塑性实际上可能是促进适应性进化变化的重要机制。这里提出的研究将使用已知的适应不同环境的特里尼迪亚孔雀鱼种群作为模型系统。利用田间移植和实验室育种实验相结合的方法,研究人员将研究塑料变化在表型和基因表达上的短期和长期后果。这项研究是第一次尝试证明可塑性在适应性进化中的作用。研究人员将把孔雀鱼表型可塑性的工作与教育和推广计划结合起来。该计划包括开发更有效的本科教学方法,增加代表人数不足的群体对研究的参与,以及对K-12教育工作者的专业发展和培训。

项目成果

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Cameron Ghalambor其他文献

Cameron Ghalambor的其他文献

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{{ truncateString('Cameron Ghalambor', 18)}}的其他基金

Exploring Temperature Mediated Interspecific Competition & Predation as a Mechanism of Elevation Range Limits
探索温度介导的种间竞争
  • 批准号:
    1702066
  • 财政年份:
    2017
  • 资助金额:
    $ 88.38万
  • 项目类别:
    Standard Grant
An Integrative Approach to the Ecological and Evolutionary Causes of Geographic Range Limits
地理范围限制的生态和进化原因的综合方法
  • 批准号:
    1457383
  • 财政年份:
    2015
  • 资助金额:
    $ 88.38万
  • 项目类别:
    Continuing Grant
DISSERTATION RESEARCH: Spatial variation in bill morphology and genetic structure in the Island Scrub-Jay: Adaptive divergence within a single-island endemic?
论文研究:岛屿灌丛松鸦喙形态和遗传结构的空间变异:单岛特有种内的适应性分歧?
  • 批准号:
    1210421
  • 财政年份:
    2012
  • 资助金额:
    $ 88.38万
  • 项目类别:
    Standard Grant
DISSERTATION RESEARCH: Ecological aspects of species distribution limits: interaction of biotic and abiotic factors
论文研究:物种分布限制的生态方面:生物和非生物因素的相互作用
  • 批准号:
    1011655
  • 财政年份:
    2010
  • 资助金额:
    $ 88.38万
  • 项目类别:
    Standard Grant
Dissertation Research: Mechanisms Maintaining Sympatric Morphological Divergence in Ilyodon Furcidens
论文研究:Ilyodon Furcidens 维持同域形态分化的机制
  • 批准号:
    0808499
  • 财政年份:
    2008
  • 资助金额:
    $ 88.38万
  • 项目类别:
    Standard Grant

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