摘要
水稻稻瘟病是世界范围内水稻主要病害之一。掌握水稻广谱抗病基因型及病原菌的致病特征特性,对培育抗病品种、指导品种布局具有重要意义。通过抗稻瘟病单基因系水稻品种与稻瘟病菌互作,鉴定出Pi19、Pi20、Pi12、Pi9、Piz5、Piz-t为吉林省水稻广谱抗病基因型,筛选出2014-17-1,2014-66-1等可用于抗性评价标准菌株,建立了一套以IRBL9-W(Pi9)、IRBL12-M([Pi12(t)]、IRBLta-CT2(Pib)、IRBLz-Fu(Piz)、IRBL5-M[Pi5(t)]、IRBLkm-Ts(Pik-m)、IRBLta2-Pi(Pita-2)这7个抗稻瘟病单基因系品种组成的生理小种鉴定体系,优势小种不显著。
Rice blast is one of the main rice diseases in the world. To know broad-spectrum gene types resistant to rice blast and pathogenicity characterization of blast pathogen is essential for breeding varieties resistant to blast and guiding variety layout. In the present study,broad-spectrum resistance genes Pi19,Pi20,Pi12,Pi9,Piz5 and Piz-t were identified by interacting between monogenic rice line varieties resistant to blast and rice blast fungi. Such standard strains as 2014-17-1 and2014-66-1 were screened for targeted screening in breeding. Furthermore,a system for identifying rice blast-reststant physiological races which is composed of 7 monogenic varieties of IRBL9-W（ Pi9）,IRBL12-M[Pi12（ t） ],IRBLta-CT2（ Pib）,IRBLz-Fu（ Piz）,IRBL5-M[Pi5（ t） ],IR-BLkm-Ts（ Pik-m） and IRBLta2-Pi（ Pita-2） was established,and the data showed that the dominant races were not obvious.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2017年第4期403-408,共6页
Journal of Jilin Agricultural University
基金
吉林省重点科技攻关项目(2014204016NY)
农业部转基因专项(2014ZX0800901B-003)
吉林省科技引导计划(国际科技合作)项目(20170414050GH)
关键词
水稻稻瘟病
抗病基因
生理小种
rice blast
disease-resistant gene
physiological race
