三倍体银鲫是我国产量增长最快的淡水养殖鱼类之一。过去本实验室从有限的方正银鲫个体中选育出的异育银鲫推动了我国淡水养殖业的发展。中国的三倍体银鲫资源丰富，特别是其雌核生殖和两性生殖双重生殖方式的发现进一步显示出其研究的理论意义和资源开发价值。本项目旨在全面调查我国三倍体银鲫的遗传（种质）资源，为优良养殖品种培育提供育种材料；揭示三倍体和二倍体鲫鱼在不同水域的生态分布格局，鉴定和评价三倍体银鲫在全国的种质资源分布；揭示不同地理种群三倍体银鲫的遗传多样性以及遗传多样性产生的基础；阐明三倍体银鲫起源和形成的生态和遗传机制及其系统演化关系；揭示三倍体银鲫转铁蛋白重复基因的适应性进化机制；揭示长江中下游江湖复合生态系统中三倍体鲫鱼的来源和演化规律，阐明人类活动对鲫鱼三倍体和二倍体生态分布格局的影响。本项目的完成将为重要养殖鱼类的资源评价和优良品种选育提供示范和支撑作用。

Triploid gibel carp (Carassius auratus gibelio Bloch) has a wide geographic distribution in China, and is one of culture fish species with the most speedy increase in the production capacity. The allogynogenetic gibel carp selected from the limited individuals of Fangzheng gibel carp greatly promoted the development of freshwater aquaculture. The values on both the academic research and resource exploitation were more important since the dual reproduction modes of gynogenesis and bisexuality were revealed. The aims of this study were to survey the genetic resource, to elucidate the ecological distributions, to analyze the evolutionary relationship between triploidgibel carp and diploid cruian carp, to clarify the genetic diversities among different geographical locations, to reveal the ecological and original mechanisms, to investigate the adaptive evolution mechanism of duplicated transferrin genes, and to illuminate the human activity effects on distribution of triploids and diploids. This study will provide the supports for genetic resource evaluation and new culture target breeding in fish.

三倍体银鲫是我国产量增长最快的淡水养殖鱼类之一。过去本实验室从有限的方正银鲫个体中选育出的异育银鲫推动了我国淡水养殖业的发展。中国的三倍体银鲫资源丰富，特别是其雌核生殖和两性生殖双重生殖方式的发现进一步显示出其研究的理论意义和资源开发价值。本项目旨在全面调查我国三倍体银鲫的遗传（种质）资源，为优良养殖品种培育提供育种材料；揭示三倍体和二倍体鲫鱼在不同水域的生态分布格局，鉴定和评价三倍体银鲫在全国的种质资源分布；揭示不同地理种群三倍体银鲫的遗传多样性以及遗传多样性产生的基础；阐明三倍体银鲫起源和形成的生态和遗传机制及其系统演化关系；揭示三倍体银鲫转铁蛋白重复基因的适应性进化机制；揭示长江中下游江湖复合生态系统中三倍体鲫鱼的来源和演化规律，阐明人类活动对鲫鱼三倍体和二倍体生态分布格局的影响。本项目的完成将为重要养殖鱼类的资源评价和优良品种选育提供示范和支撑作用。