Evolutionary genetics of fishes

我的研究项目侧重于了解鱼类进化变化的遗传基础。我特别集中在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观和数量的变化和他们的后代的生存（健身）。 其次，我确定了当这些遗传差异开始在遗传上分化成不同的物种时，它们是如何在种群之间分配的。我研究了来自冰岛的不同形式（变种）的北极红点鲑，它们在外观和生态上不同，并共同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，并调查这些形式在新物种起源中的作用。 北极红点鲑由于其显著的表型和遗传多样性以及产生实验家系的能力而继续成为这项工作的模型。

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 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 appearance 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.