根癌农杆菌介导的高效大豆遗传转化体系的建立

被引:31
作者
党尉
卫志明
机构
[1] 中国科学院上海生命科学研究院植物生理生态研究所
关键词
大豆; 根癌农杆菌; 胚尖; 优化; 抗虫;
D O I
暂无
中图分类号
S565.1 [大豆];
学科分类号
0901 ;
摘要
利用根癌农杆菌对来自大豆成熟种子的胚尖进行遗传转化,研究了影响农杆菌介导大豆转化的各种因素,建立了一套优化的大豆遗传转化体系。研究结果表明:菌株KYRT1比EHA105和LBA4404具有更强的侵染能力;较酸的共培养基(pH5.4)、较低的培养温度(22℃)均有利于提高转化效率;恢复培养和分步抗性筛选方式有利于提高抗性组织的存活率和分化率。同时应用这种优化的遗传转化体系,获得了7个大豆品系的转基因植株,转化频率为4.29%-18%。经过PCR和Southern分析证明外源的双价抗虫基因cryIA(c)和pta已经整合到大豆的基因组中。
引用
收藏
页码:185 / 195
页数:11
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