Literature DB >> 12582657

Mapping of the QTL (quantitative trait locus) conferring partial resistance to leaf blast in rice cultivar Chubu 32.

K. Zenbayashi1, T. Ashizawa, T. Tani, S. Koizumi.   

Abstract

The rice cultivar Chubu 32 possesses a high level of partial resistance to leaf blast. The number and chromosomal location of genes conferring this resistance were detected by restriction fragment length polymorphism (RFLP) linkage mapping and quantitative trait locus (QTL) analysis. For the mapping, 149 F(3) lines derived from the cross between rice cultivar Norin 29, with a low level of partial resistance, and Chubu 32 were used, and their partial resistance to leaf blast was assessed in upland nurseries. A linkage map covering six chromosomes and consisting of 36 RFLP markers was constructed. In the map, only one significant QTL (LOD>2.0) for partial resistance was detected on chromosome 11. This QTL explained 45.6% of the phenotypic variation. The segregation ratio of the F3 lines was 3:1 for partial resistance to susceptibility. These results suggest that the partial resistance in Chubu 32 is controlled by a major gene.

Entities:  

Year:  2002        PMID： 12582657     DOI： 10.1007/s00122-001-0779-y

Source DB:  PubMed          Journal:  Theor Appl Genet        ISSN： 0040-5752            Impact factor:   5.699


  15 in total

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Authors:  Shen Chen; Ling Wang; Zhiquen Que; Ruqian Pan; Qinghua Pan
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4.  Pi35(t), a new gene conferring partial resistance to leaf blast in the rice cultivar Hokkai 188.

Authors:  T T T Nguyen; S Koizumi; T N La; K S Zenbayashi; T Ashizawa; N Yasuda; I Imazaki; A Miyasaka
Journal:  Theor Appl Genet       Date:  2006-07-13       Impact factor: 5.699

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Authors:  G Yi; S-K Lee; Y-K Hong; Y-C Cho; M-H Nam; S-C Kim; S-S Han; G-L Wang; T-R Hahn; P C Ronald; J-S Jeon
Journal:  Theor Appl Genet       Date:  2004-05-13       Impact factor: 5.699

10.  Genetic dissection of rice blast resistance by QTL mapping approach using an F3 population.

Authors:  S Ashkani; M Y Rafii; H A Rahim; M A Latif
Journal:  Mol Biol Rep       Date:  2012-12-01       Impact factor: 2.316
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