Physiological Signatures of Thermal Tolerance and Local Adaptation in Fishes

鱼类耐热性和局部适应的生理特征

• 批准号: RGPIN-2017-05479
• 负责人: Jeffries, Kenneth
• 金额: $ 1.89万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630844
• 关键词: Physiological; Signatures; Thermal; Tolerance; Local

Understanding how different populations respond to changing environmental conditions throughout their species’ distributions is fundamental to the conservation of fishes. Temperature is one of the major environmental factors that determines the distributions of fishes. Phenotypic plasticity along with genomic divergence leads to differences in thermal tolerance phenotypes expressed among populations along environmental gradients. The mechanisms that lead to population-specific responses to high water temperatures in fishes are poorly understood. The long-term goal of my research program is to identify the physiological mechanisms involved in population-specific differences in thermal tolerance and to characterize the physiological signatures of local adaptation in fishes across large environmental gradients. I will use gene expression profiling and physiological assessments to identify responses to high water temperatures among fish populations throughout their natural and introduced ranges. In addition to their significant cultural, economic and ecological importance, Chinook salmon (

了解不同种群对整个物种分布的环境条件的反应如何对鱼类的保护至关重要。温度是决定鱼类分布的主要环境因素之一。表型可塑性以及基因组差异会导致沿环境梯度在人群中表达的热耐受性表型的差异。人们对鱼类水温高水温的特定反应的机制知之甚少。我的研究计划的长期目标是确定与人口特异性差异有关的生理机制，并表征大型环境梯度中鱼类局部适应的物理特征。我将使用基因表达分析和物理评估来确定在其自然和引入范围的鱼类种群中对高水温的反应。除了其重要的文化，经济和生态重要性外，奇努克鲑鱼（