大菱鲆两种转基因方法的比较研究  

Using electroporation and transfection methods to transfer foreign gene into Turbot (Scophthatmus maximus)

作　　者：刘婷[1] 刘庆华[1] 谭训刚[1] 张培军[1] 徐永立[1] 

机构地区：[1]中国科学院海洋研究所

出　　处：《海洋科学》2007年第11期9-13,共5页Marine Sciences

基　　金：国家863计划资助项目(2004AA628110);国家973计划(2004CB117402);青岛市科技局资助项目

摘　　要：对外源基因导入大菱鲆(Scophthat musmaximus)的两种方法进行了研究,采用经过改进的电脉冲方法以及哺乳动物细胞中常用的转染法导入外源基因,并对两种方法进行比较。电脉冲最佳导入条件为:脉冲电压为300V/cm,脉冲次数为5,外源DNA质量浓度为20mg/L;转染法的最佳操作时间为受精后50min。应用上述两种方法进行批量转基因鱼实验,得到外源基因的导入率分别为20%～28%和60%～70%。实验表明利用转染试剂jetPEI处理单细胞期的大菱鲆受精卵能得到较高的孵化率及较高的转基因效率。This paper explores the relative efficiency of gene transfer into Turbot （Scophthatmus maximus） zygotes by electroporation and transfection reagent. The electroporation conditions（field strength of 300 V/cm, 5 pluse and foreign DNA concentration of 20 mg/L） were applied for mass gene transfer. Transfection experiments were performed at the one-cell stage （within 50 min postspawning） of fertilized fish eggs. Efficiency rates of foreign gene in the mass gene transfer were about 20%-28% and 60%-70% for electroporation and transfection methods, respectively. This study demonstrates that treating the fish zygotes with the DNA/jetPEI complex at the one-cell stage exhibits a higher gene transfer efficiency in fish.

关 键 词：转基因效率 电脉冲精子介导法 转染 大菱鲆(Scophthatmus maximus) 

分 类 号：Q78[生物学—分子生物学]