Substitution mapping of QTLs for blast resistance with SSSLs in rice (Oryza sativa L.)

被引：21
|
作者：
Zhang, Yuexiong [1 ]
Yang, Jianyuan [2 ]
Shan, Zelin [1 ]
Chen, Shen [2 ]
Qiao, Weihua [1 ]
Zhu, Xiaoyuan
Xie, Qingjun [1 ]
Zhu, Haitao [1 ,2 ]
Zhang, Zemin [1 ,3 ]
Zeng, Ruizhen [1 ,3 ]
Ding, Xiaohua [1 ]
Zhang, Guiquan [1 ,3 ]
机构：
[1] S China Agr Univ, Guangdong Prov Key Lab Plant Mol Breeding, Guangzhou 510642, Guangdong, Peoples R China
[2] Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangzhou 510640, Peoples R China
[3] S China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou 510642, Guangdong, Peoples R China
来源：
EUPHYTICA | 2012年 / 184卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Rice; Single-segment substitution line; Blast; Quantitative trait locus; Resistance; Substitution mapping; GENES CONFERRING RESISTANCE; NBS-LRR PROTEIN; NUCLEOTIDE-BINDING; BROAD-SPECTRUM; DISEASE RESISTANCE; MAGNAPORTHE-ORYZAE; FIELD-RESISTANCE; ELITE CULTIVAR; REPEAT PROTEIN; PI-TA;
D O I：
10.1007/s10681-011-0601-0
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Rice blast, caused by fungal pathogen Magnaporthe grisea Barr., is one of the most devastating rice diseases worldwide. It has greatly affected the rice production and quality. Development of resistant cultivars is the most effective and economical way for controlling this disease in rice. In this study, 114 of the single-segment substitution lines (SSSLs) in rice were inoculated at seedling stage by 16 rice blast isolates. The substituted segments in the 114 SSSLs distributed on 12 chromosomes with coverage of 57.32% of rice genome. Fifteen of the SSSLs were different in blast resistance from the HJX74 recipient. The SSSL W23-7-6-5-2-2 showed 100% of resistance frequency. A total of 11 QTLs for blast resistance were detected on chromosomes 1, 2, 3, 6, 10, 11 and 12 in rice. They were mapped at chromosomal intervals of 2.2-46.2 cM, of which 6 QTLs were mapped at less than 10.0 cM. Six of the 11 QTLs were first reported in this paper.
引用
收藏
页码：141 / 150
页数：10
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