Anti-trxs和Bar基因共转化小麦后代植株的遗传及表型分析

被引:4
作者
任江萍
尹钧
王新国
王振云
陈焕丽
机构
[1] 河南农业大学
关键词
Anti-trxs基因; Bar基因; 转基因小麦; 遗传及表型分析;
D O I
10.16213/j.cnki.scjas.2006.01.003
中图分类号
S512.1 [小麦];
学科分类号
0901 ;
摘要
经对基因枪转化小麦品种皖麦48获得的7株再生苗的PCR、PCR-Southern杂交和除草剂涂抹叶片检测,得到了4株转基因植株,证实了硫氧还蛋白反义基因(Anti-trxs)和抗除草剂Bar基因已经整合到小麦基因组中且能够正常表达。经对T1、T2植株分析表明:Anti-trxs、Bar基因能够稳定的遗传给后代,且普遍呈3∶1的分离,其遗传符合单基因控制的孟德尔遗传规律,部分株系表现1∶1的不正常分离(阳性个体较预期的少),推测这是由于雌或雄配子之一方丢失或外源基因的结构、排列等方面发生了变化的结果。转基因植株的农艺性状与对照相比,T0代有较大变异,但在T2代已得到了回复。
引用
收藏
页码:10 / 13
页数:4
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