水稻品种资源91-1A②对稻瘿蚊的抗性鉴定及其遗传分析  

Identification and Genetic Analysis of Resistance of a Rice Germplasm 91-1A② to Rice Gall Midges

作　　者：卢家仕[1,2] 何龙飞[1] 徐晶[1] 许春燕[1] 李创珍[1] 韦素美[3] 

机构地区：[1]广西大学农学院,广西南宁530004 [2]广西农业科学院生物技术研究所,广西南宁530007 [3]广西农业科学院植物保护研究所,广西南宁530007

出　　处：《中国水稻科学》2012年第4期506-510,共5页Chinese Journal of Rice Science

基　　金：广西自然科学基金资助项目(桂科青0007015);广西科学研究与技术开发计划资助项目(桂科攻0012027;9939006);广西"十百千人才工程"资助项目(2003213)

摘　　要：以抗虫品种资源91-1A②为父本,分别与粳桂、TN1、W1263(Gm1)、IET2911(Gm2)、BG404-1(gm3)、OB677(Gm4)、ARC5984(Gm5)和多抗1号(Gm6)(母本)进行杂交、测交、自交,获得F1、BC1F1、F2群体,对亲本和各个群体进行稻瘿蚊的抗性鉴定,研究91-1A②的抗性基因和遗传规律。结果表明,91-1A②及其与其他品种杂交获得的F1都抗中国稻瘿蚊生物型Ⅳ型,杂交获得的BC1F1和F2对中国稻瘿蚊生物型Ⅳ型的抗虫和感虫植株分离比经χ2测验分别符合1∶3和9∶7,说明91-1A②对中国稻瘿蚊生物型Ⅳ型的抗性受2对显性基因控制。91-1A②所含的2对抗性基因与已知的6个抗性基因Gm1、Gm2、gm3、Gm4、Gm5和Gm6不等位,与其他5个抗性基因Gm7、Gm8、Gm9、Gm10、Gm11(t)也不等位。该抗性基因可能是2对新的抗性基因。The resistance of a rice germplasm 91-1A② to the rice gall midge（GM） was identified and genetically analyzed.91-1A② was used as male parent to hybridize,test cross with Jinggui,TN1,W1263（Gm1）,IET2911（Gm2）,BG404-1（gm3）,OB677（Gm4）,ARC5984（Gm5）and Duokang 1（Gm6）,and their F1 self-pollinated,respectively.The resistance of all parental lines and the populations of F1,BC1F1,F2 to the rice gall midge were identified.The resullts showed that 91-1A② and all F1 resist to rice gall midge biotype Ⅳ of China.The segregation ratio of resistant plants to sensitive ones to rice gall midge biotype Ⅳ of China of BC1F1 and F2 accorded with 1（resistant）∶3（sensitive） and 9（resistant）∶7（sensitive） rule by χ2 test,suggesting that the resistance of 91-1A② to rice gall midge biotype Ⅳ of China was controlled by two dominant genes,which was non-allelic to the known resistant genes Gm1,Gm2,gm3,Gm4,Gm5and Gm6,as well as the other five resistant genes Gm7,Gm8,Gm9,Gm10,Gm11（t）.It suggested that the two genes are new rice gall midge resistance genes.

关 键 词：水稻 稻瘿蚊 抗性鉴定 抗性基因 

分 类 号：S511[农业科学—作物学]