论文

Pi-bPi-taPikmPi54对水稻穗颈瘟的抗性评价

  • 范方军 ,
  • 王芳权 ,
  • 刘永峰 ,
  • 王军 ,
  • 朱金燕 ,
  • 李文奇 ,
  • 仲维功 ,
  • 杨杰
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  • 1. 江苏省农业科学院 粮食作物研究所, 江苏 南京 210014;
    2. 江苏省农业科学院 植物保护研究所, 江苏 南京 210014
范方军(1978-),男,江苏扬州人,助理研究员,硕士,主要从事水稻遗传育种研究。

收稿日期: 2014-03-11

  网络出版日期: 2014-09-19

基金资助

江苏省农业科技自主创新基金项目(CX[11]4020);国家科技支撑计划重大项目(2011BAD16B03)

Evaluation of Resistance to Rice Panicle Blast with Resistant Genes Pi-b, Pi-ta, Pikm and Pi54

  • FAN Fang-jun ,
  • WANG Fang-quan ,
  • LIU Yong-feng ,
  • WANG Jun ,
  • ZHU Jin-yan ,
  • LI Wen-qi ,
  • ZHONG Wei-gong ,
  • YANG Jie
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  • 1. Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China

Received date: 2014-03-11

  Online published: 2014-09-19

摘要

利用水稻稻瘟病抗病基因Pi-bPi-taPikm Pi54 的功能标记检测2012年江苏省迟熟中粳稻预试64份品系,结合水稻穗颈瘟抗性鉴定,解析稻瘟病抗病基因Pi-bPi-taPikm Pi54 在江苏省粳稻稻瘟病抗性育种中的作用。结果表明,在64份材料中含稻瘟病基因Pi-b的有49份,含Pi-ta的26份,含Pikm的19份,含 Pi54 的25份。64份品系的人工或病圃鉴定其抗性表现为2级中抗的有10份,3级感病的有43份,4级高感的有11份。64份品系中含有抗稻瘟病基因Pi-ta(26个新品系),或Pi-bPikm Pi54 组合(4个新品系),则该品系穗颈瘟抗性水平在2级中抗或3级感病,无4级高感,其他抗病基因组合其穗颈瘟抗性水平一般都存在4级高感。相关性分析表明,只有抗稻瘟病基因Pi-ta与穗颈瘟抗性存在显著相关性(r=0.344,P<0.01)。

关键词: 水稻; 稻瘟病; 功能标记

本文引用格式

范方军 , 王芳权 , 刘永峰 , 王军 , 朱金燕 , 李文奇 , 仲维功 , 杨杰 . Pi-bPi-taPikmPi54对水稻穗颈瘟的抗性评价[J]. 华北农学报, 2014 , 29(3) : 221 -226 . DOI: 10.7668/hbnxb.2014.03.040

Abstract

In this study, 64 late maturity japonica test lines of Jiangsu Province were detected with the functional markers of rice blast resistance genes Pi-b, Pi-ta, Pikm and Pi54 in rice.Combined with the identification of rice panicle blast resistance, the role of blast resistance genes Pi-b, Pi-ta, Pikm and Pi54 for Japonica rice breeding with blast resistance in Jangsu Province has been analysized.There were 49 lines containing rice blast resistance gene Pi-b, 26 lines containing Pi-ta, 19 lines containing Pikm, 25 lines containing Pi54 in 64 lines.Through artificial or disease nursery identification, the resistance performance into 2 levels(Moderate resistance) of disease resistance were 10 lines, 3 levels(Susceptible) were 43 lines, 4 levels(High susceptible) were 11 lines.If new lines contain blast resistance genes Pi-ta(26 new lines), or combined with Pi-b, Pikm and Pi54 (4 new lines), the levels of panicle blast resistance showed 2 levels(Moderate resistance) or 3 levels(Susceptible) and never 4 levels(High susceptible), while lines with other resistance gene combinations generally exhibited 4 grade levels of panicle blast resistance(High susceptible).A correlation showed that only the rice blast resistance gene Pi-ta has certain correlation with Panicle Blast Resistance(r=0.344, P<0.01).

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