植物抗病基因同源序列(RGA)研究进展

被引：23

作者：

李春来

张怀渝

机构：

[1] 四川农业大学生命科学院

[2] 四川农业大学生命科学院雅安

[3] 雅安

来源：

分子植物育种 | 2004年 / 06期

关键词：

抗病基因同源序列; 核苷酸结合位点; 富含亮氨酸重复序列; 丝氨酸/苏氨酸激酶; 分子标记;

D O I：

暂无

中图分类号：

S332.2 [抗病性育种];

学科分类号：

071007 ; 090102 ;

摘要：

目前已克隆了48个植物抗病(R)基因,其表达产物在不同的物种具有典型的保守结构区域,按其序列的同源性可以将其归为NBS-LRR、eLRR、LRR-STK等几个超家族。根据这些保守序列设计合适的引物进行PCR扩增,即得到抗病基因同源序列(RGA)。对RGA与R基因关系的分析表明,RGA不仅在抗病基因定位和抗病基因系统进化研究中有重要作用,而且有可能为克隆R基因提供一条崭新而又便捷的途径。

引用

页码：853 / 860

页数：8

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