Dissertation Research: The Maintenance of Genetic Variation for Phenotypic Plasticity: The Roles of Cost and Adaptation
论文研究:表型可塑性遗传变异的维持:成本和适应的作用
基本信息
- 批准号:0206258
- 负责人:
- 金额:$ 0.87万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2002
- 资助国家:美国
- 起止时间:2002-07-01 至 2005-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Phenotypic plasticity, the ability to adjust morphological traits in response to the environment, may enhance survival and reproduction in changing environments. Given this adaptive value of phenotypic plasticity, it is important to understand the mechanisms that may maintain genetic variation for plasticity. Despite the important theoretical role the cost of plasticity plays in maintaining this variation, relatively few empirical studies have focused on the role of cost of plasticity under natural conditions. This dissertation research will address this issue by examining the balance between the cost of plasticity and the benefit of plasticity under a variety of environmental conditions. Populations of the herbaceous plant Geranium carolinianum from both environmentally variable and uniform light environments are compared for the patterns of plasticity to natural variation in light availability. The genetic basis of plasticity will be assessed because the potential of phenotypic plasticity to evolve in response to future environmental change depends in part on its genetic basis. Finally, a field study will examine how selection may favor plasticity under environmentally variable conditions but favor non-plastic responses under uniform conditions. An increase in environmental variation is expected with global climate change. Understanding how plasticity is maintained is central to predicting population response to diverse environments.
表型可塑性,即根据环境调整形态特征的能力,可以提高在变化的环境中的生存和繁殖。 考虑到表型可塑性的适应价值,理解可能维持遗传变异的可塑性的机制是很重要的。 尽管重要的理论作用的可塑性成本在维持这种变化,相对较少的实证研究集中在自然条件下的可塑性成本的作用。 本论文的研究将解决这一问题,通过研究在各种环境条件下的塑性成本和塑性效益之间的平衡。 从环境变量和均匀的光环境的草本植物Germiscarolinianum的人口进行了比较的模式的可塑性自然变化的光可用性。 可塑性的遗传基础将进行评估,因为表型可塑性的潜力,以应对未来的环境变化,部分取决于其遗传基础。 最后,实地研究将探讨如何选择可能有利于可塑性在环境变化的条件下,但有利于非塑性反应在统一的条件下。随着全球气候变化,环境变化预计会增加。了解可塑性是如何维持的是预测人口对不同环境的反应的核心。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Laura Galloway其他文献
Laura Galloway的其他文献
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{{ truncateString('Laura Galloway', 18)}}的其他基金
Collaborative Research: Does Cytonuclear Coevolution Drive Reproductive Isolation? Dissecting the Architecture of Genetic Incompatibility Across a Species Range
合作研究:细胞核协同进化是否会导致生殖隔离?
- 批准号:
2140189 - 财政年份:2022
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
NRT-ROL: Interdisciplinary Studies of the Phenotype: EXPANDing Training in Research and Careers
NRT-ROL:表型的跨学科研究:扩展研究和职业培训
- 批准号:
2021791 - 财政年份:2020
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
Collaborative Research: Does genetic load drive mating system evolution? Tests in an explicit historical context
合作研究:遗传负荷是否驱动交配系统进化?
- 批准号:
1457686 - 财政年份:2015
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Within species reproductive isolation: does chloroplast inheritance mediate cytonuclear incompatibility?
论文研究:物种内生殖隔离:叶绿体遗传是否介导细胞核不相容?
- 批准号:
1210513 - 财政年份:2012
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
Evaluating the contribution of maternal effects to population differentiation in an herbaceous plant
评估母体效应对草本植物群体分化的贡献
- 批准号:
1020717 - 财政年份:2010
- 资助金额:
$ 0.87万 - 项目类别:
Continuing Grant
Collaborative Research: Population differentiation in an herbaceous plant: genetic divergence and outbreeding depression
合作研究:草本植物的群体分化:遗传分化和远交抑制
- 批准号:
0922214 - 财政年份:2009
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
Using Manipulated Phenotypes to Evaluate the Contribution of Maternal Effects to Life History Evolution in an Herbaceous Plant
利用操纵表型评估母体效应对草本植物生命史进化的贡献
- 批准号:
0316298 - 财政年份:2003
- 资助金额:
$ 0.87万 - 项目类别:
Continuing Grant
Dissertation Research: The Potential for Gene Flow and Introgression into a Locally-adapted Population of Lobelia cardinalis
论文研究:基因流动和渗入适应当地的半边莲种群的潜力
- 批准号:
0073316 - 财政年份:2000
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
The Contribution of Genetic and Environmental Maternal Effects to Life History Evolution
遗传和环境母体效应对生命史进化的贡献
- 批准号:
9974126 - 财政年份:1999
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
POWRE: The Contribution of Parental Effects to Life History Evolution in Campanula americana
POWRE:亲本效应对美洲风铃生活史进化的贡献
- 批准号:
9752947 - 财政年份:1997
- 资助金额:
$ 0.87万 - 项目类别:
Standard Grant
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