Chinese Journal of Rice Science ›› 2012, Vol. 26 ›› Issue (4): 506-510.DOI: 10.3969/j.issn.10017216.2012.04.018

• Short Communications • Previous Articles    

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

LU Jiashi 1,2, HE Longfei 1,*, XU Jing 1, XU Chunyan 1, LI  Chuangzhen 1, WEI  Sumei 3   

  1. 1 College of Agronomy, Guangxi University, Nanning 530004, China; 2 Biotechnology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; 3 Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China;
  • Received:2011-11-08 Revised:2012-01-10 Online:2012-07-10 Published:2012-07-10
  • Contact: HE Longfei1,*

水稻品种资源911A②对稻瘿蚊的抗性鉴定及其遗传分析

卢家仕1,2,何龙飞1,* ,徐晶1,许春燕1,李创珍1 ,韦素美3   

  1. 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;
  • 通讯作者: 何龙飞1,*
  • 基金资助:

    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)。

Abstract: 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.

Key words: rice, rice gall midge, resistance test; resistant gene

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。

关键词: 水稻, 稻瘿蚊, 抗性鉴定, 抗性基因

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