Genetic and genomic analyses for economically important traits and their applications in molecular breeding of cultured fish
文献类型: 外文期刊
作者: Tong JinGou 1 ; Sun XiaoWen 2 ;
作者机构: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Fishery Sci, Heilongjiang Fisheries Res Inst, Harbin 150070, Peoples R China
关键词: aquaculture fish;economic traits;QTL;major genes;molecular markers;molecular breeding
期刊名称:SCIENCE CHINA-LIFE SCIENCES ( 影响因子:6.038; 五年影响因子:4.754 )
ISSN: 1674-7305
年卷期: 2015 年 58 卷 2 期
页码:
收录情况: SCI
摘要: The traits of cultured fish must continually be genetically improved to supply high-quality animal protein for human consumption. Economically important fish traits are controlled by multiple gene quantitative trait loci (QTL), most of which have minor effects, but a few genes may have major effects useful for molecular breeding. In this review, we chose relevant studies on some of the most intensively cultured fish and concisely summarize progress on identifying and verifying QTLs for such traits as growth, disease and stress resistance and sex in recent decades. The potential applications of these major-effect genes and their associated markers in marker-assisted selection and molecular breeding, as well as future research directions are also discussed. These genetic and genomic analyses will be valuable for elucidating the mechanisms modulating economically important traits and to establish more effective molecular breeding techniques in fish.
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