分子标记辅助筛选携带Xa23、Stvb-i、Pi-1抗病基因的水稻种质资源  

Screening the Rice Germplasm Containing Disease-resistant Genes Xa23, Stvb-I, Pi-1 by Molecular Marker-assisted Method

作　　者：孙海波[1] 邹美智[1] 任洪岩[1] 王景余[1] 李艳萍[1] 冯瑞光[1] 

机构地区：[1]天津市农作物研究所,天津300384

出　　处：《天津农业科学》2015年第4期1-5,共5页Tianjin Agricultural Sciences

基　　金：天津市应用基础研究计划一般项目(11JCYBC08900);国家自然科学基金项目(31271935)

摘　　要：利用分子标记辅助选择技术对62份水稻种质资源进行筛选携带Xa23、Stvb-i、Pi-1抗病基因种质资源。结果表明:经PCR检测,从中选择出含两种抗病基因的材料有10个,占16.1%,其中Xa23和Pi-1呈阳性的材料有4个,Xa23和Stvb-i呈阳性的材料有1个,Pi-1和Stvb-i呈阳性的材料有5个;含有一种抗病基因材料40个,占64.5%,其中Xa23呈阳性的材料有3个,占4.8%;Pi-1呈阳性的材料有17个,占27.4%;Stvb-i呈阳性的材料有20个,占32.3%;本试验为实现分子标记辅助选择水稻抗病育种打下了坚实的基础。In the study, the rice germplasm containing disease-resistant genes Xa23, Stvb-i, Pi-1 was screened from 62 anther cul- ture descendants by molecular marker-assisted method. The results showed that 10 rice cultivars having two disease resistant genes was obtained, which was 16.1%. Among them, 4 cultivars contained Xa23 and Pi-1, one cultivar had Xa23 and Stvb-I, and 5 culti- vars contained Pi-1 and Stvb-i. There are 40 cultivars carrying one disease resistant gene, which was 64.5%. In which 3 cultivars carried Xa23 （4.8%）, 17 ones carried Pi-1 （27.4%） and 20 ones had Stvb-i （32.3%）. Such findings in the paper provided basis for breeding of disease-resistant rice by molecular marker-assisted method.

关 键 词：水稻种质资源 分子标记辅助选择 抗病 XA23 Stvb-i Pi-1 

分 类 号：S511[农业科学—作物学]