优化白菜类蔬菜遗传转化体系的研究

被引:12
作者
余小林
曹家树
许立奎
齐文雯
王晓静
机构
[1] 浙江大学蔬菜研究所
[2] 温州市农科院浙南水稻育种中心
[3] 浙江大学蔬菜研究所 浙江杭州
[4] 浙江杭州
[5] 浙江温州
关键词
普通白菜; 菜心; 遗传转化; 转化频率;
D O I
暂无
中图分类号
S634 [白菜类];
学科分类号
090202 ;
摘要
采用农杆菌介导法将双元载体质粒pBI35S-AMF分别导入上海青"白菜和油青"菜心,对影响转化频率的抑菌剂和感染菌株等主要因素进行比较,优化了白菜类蔬菜的遗传转化体系.结果表明,在白菜类蔬菜的遗传转化体系中,选择氨苄青霉素作为转化农杆菌的抑菌剂为好,其抑菌浓度以300 mg/L为宜;预培养时间和共培养时间分别以3 d和2 d为适;LBA4404/pBI35S-AMF菌株的感染效率远高于EHA105/pBI35S-AMF.对KanR转化植株做进一步的分子检测结果显示,Southern印迹杂交阳性率为82.2%,转化频率达2.8%,且外源片段为多拷贝插入.多批次的转化结果证实,该体系的转化频率稳定.
引用
收藏
页码:529 / 534
页数:6
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