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转基因鱼的外源基因构建需要有启动子、目的基因和终止子等， 常用外源基因的导入方法有显微注射、电穿孔等， 并介绍了外源基因表达模式及常用的标记基因。转基因鱼的研究比较落后， 当务之急是从分子水平上分析鱼类的生理现象及表达基因的结构。
The exogenous gene of transgenic fish need promoters, target genes and terminators, the introduction of commonly used foreign genes microinjection, electroporation, and introduced foreign gene expression patterns and commonly used marker genes. The research on genetically modified fish is relatively backward. It is imperative to analyze the physiological phenomenon of fish and the structure of the expressed genes at the molecular level.