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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Yue Wang, Dan Deng, Xiaojuan Liu, Jinling Sun, Pingyong Liu, Yang Huang, Hongmei Jiang, Nan Kang, Houxiang Ning, Yuese Wang, Zhilong Xiao, Yinghui Liu, Xionglun Liu, Erming Dai, Liangying Wang, Guo-Liang |
| Description | Country affiliation: China Author Affiliation: Wang Y ( Hunan Key Laboratory of Crop Germplasm Innovation and Utilization and College of Agronomy, Hunan Agriculture University, Cahngsha, China.) |
| Abstract | Tianjingyeshengdao' (TY) is a rice cultivar with durable resistance to populations of Magnaporthe oryzae (the causal agent of blast) in China. To understand the genetic basis of its resistance to blast, we developed a population of recombinant inbred lines from a cross between TY and the highly susceptible 'CO39' for gene mapping analysis. In total, 22 quantitative trait loci (QTLs) controlling rice blast resistance were identified on chromosomes 1, 3, 4, 5, 6, 9, 11, and 12 from the evaluation of four disease parameters in both greenhouse and blast nursery conditions. Among these QTLs, 19 were contributed by TY and three by CO39. Two QTL clusters on chromosome 6 and 12 were named Pi2-1 and Pi51(t), respectively. Pi2-1 was detected under both growth chamber and natural blast nursery conditions, and explained 31.24 to 59.73% of the phenotypic variation. Pi51(t) was only detected in the natural blast nursery and explained 3.67 to 10.37% of the phenotypic variation. Our results demonstrate that the durable resistance in TY is controlled by two major and seven minor genes. Identification of the markers linked to both Pi2-1 and Pi51(t) in this study should be useful for marker-aided selection in rice breeding programs as well as for molecular cloning of the identified resistance genes. |
| File Format | HTM / HTML |
| ISSN | 0031949X |
| e-ISSN | 19437684 |
| Journal | Phytopathology |
| Issue Number | 8 |
| Volume Number | 102 |
| Language | English |
| Publisher | The American Phytopathological Society |
| Publisher Date | 2012-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Botany Chromosomes, Plant Genetics Magnaporthe Pathogenicity Oryza Sativa Microbiology Quantitative Trait Loci Plant Immunity Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Agronomy and Crop Science |
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