Evolutionary Genetics of Fishes

鱼类的进化遗传学

• 批准号: 3431-2013
• 负责人: Ferguson, Moira
• 金额: $ 2.4万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=592746
• 关键词: Evolutionary; Genetics; Fishes

My research program focuses on understanding the genetic basis of evolutionary change in fishes. In particular I am concentrating on two major components of the evolutionary process. Firstly, I study how genetic differences among individuals lead to variation in their appearance (phenotype) and numbers and survival of their offspring (fitness). Secondly, I determine how those genetic differences can become partitioned between populations when they begin to diverge genetically into different species. I examine different forms (morphs) of Arctic charr from Iceland that differ in size, appearance, feeding habits and ecology, and live together in different lakes. In particular I am determining the way in which these different forms might have arisen, and also investigating the role of such forms in the origin of new species. Arctic charr continue to be models for this work because of their remarkable phenotypic and genetic diversity and the ability to produce experimental families.

我的研究项目重点是了解鱼类进化变化的遗传基础。我特别关注进化过程的两个主要组成部分。首先，我研究了个体之间的遗传差异如何导致他们的外表(表型)、数量和后代的存活率(适应性)的变化。其次，我确定当这些遗传差异开始分化为不同的物种时，这些遗传差异如何在种群之间划分。我研究了来自冰岛的不同形式的北极炭，它们在大小、外观、食性和生态方面都不同，并且生活在不同的湖泊中。特别是，我正在确定这些不同形式可能出现的方式，并研究这些形式在新物种起源中的作用。北极木炭仍然是这项工作的模型，因为它们具有显着的表型和遗传多样性，以及产生实验家系的能力。