文献类型: 外文期刊
作者: Alvarez, M. Carmen 1 ; Bejar, Julia 2 ; Chen, Songlin 3 ; Hong, Yunhan 4 ;
作者机构: 1.Univ Malaga, Fac Sci, Dept Cell Biol & Genet, E-29071 Malaga, Spain
2.Chinese Acad Fisheries Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
4.Natl Univ Singapore, Dept Biol Sci, Singapore 119260, Singapore
关键词: Chimeras;ES cells;fish;transgenics
期刊名称:MARINE BIOTECHNOLOGY ( 影响因子:3.619; 五年影响因子:3.322 )
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年卷期:
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收录情况: SCI
摘要: ES cells provide a promising tool for the generation of transgenic animals with site-directed mutations. When ES cells colonize germ cells in chimeras, transgenic animals with modified phenotypes are generated and used either for functional genomics studies or for improving productivity in commercial settings. Although the ES cell approach has been limited to mice, there is strong interest for developing the technology in fish. We describe the step-by-step procedure for developing ES cells in fish. Key aspects include avoiding cell differentiation, specific in vitro traits of pluripotency, and, most importantly, testing for production of chimeric animals as the main evidence of pluripotency. The entire process focuses on two model species, zebraf ish and medaka, in which most work has been done. The achievements attained in these species, as well as their applicability to other commercial fish, are discussed. Because of the difficulties relating to germ line competence, mostly of long-term fish EScells, alternative cell-based approaches such as primordial germ cells and nuclear transfer need to be considered. Although progress to date has been slow, there are promising achievements in homologous recombination and alternative avenues yet to be explored that can bring ES technology in fish to fruition.
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