caa a22 4500 475794486 CHVBK 20180406123720.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/s001220051517 doi (NATIONALLICENCE)springer-10.1007/s001220051517 Mapping quantitative trait loci controlling sheath blight resistance in two rice cultivars ( Oryza sativa L.) [Elektronische Daten] [J. H. Zou, X. B. Pan, Z. X. Chen, J. Y. Xu, J. F. Lu, W. X. Zhai, L. H. Zhu] Abstract : Rice sheath blight, caused by Rhizoctonia solani Kühn, is one of the three major diseases of rice. The present study was conducted with an F2 clonal population of Jasmine 85/Lemont. The F2 population, including 128 clonal families, was inoculated by short toothpicks incubated with a strain, RH-9 of the fungus. Based on field disease evaluations in 2 years and a genetic map with 118 evenly distributed molecular markers, we identified six quantitative trait loci (QTLs) contributing to sheath blight resistance. These QTLs, qSB-2, qSB-3, qSB-7, qSB-9-1, qSB-9-2 and qSB-11, were located on chromosomes 2, 3, 7, 9 and 11, respectively. The respective alleles of qSB-2, qSB-3, qSB-7, and qSB-9-2 from Jasmine 85 could explain 21.2%, 26.5%, 22.2% and 10.1% of the total phenotypic variation, respectively; while the alleles of qSB-9-1 and qSB-11 from Lemont could explain 9.8% and 31.2% of the total phenotypic variation. Of these qSB-2 and qSB-11 could be detected in both years, while remaining loci were detected only in a single year. Furthermore, four QTLs (qHD-2, qHD-3, qHD-5 and qHD-7) controlling heading date and three QTLs (qPH-3, qPH-4 and qPH-11) controlling plant height were also identified. Though rice sheath blight resistance may be influenced by morphological traits, such as heading date and plant height, in the present study most detected resistance loci were not linked to the loci for heading date or plant height. Springer-Verlag Berlin Heidelberg, 2000 Key words Rice nationallicence Sheath blight nationallicence F2 clonal population nationallicence QTLs for resistance nationallicence Zou J. H. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut Pan X. B. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut Chen Z. X. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut Xu J. Y. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut Lu J. F. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut Zhai W. X. Institute of Genetics, Chinese Academy of Sciences, Beijing, 100101, China e-mail: lhzhu@ss10.igtp.ac.cn Fax: +86-10-64873428, CN aut Zhu L. H. Institute of Genetics, Chinese Academy of Sciences, Beijing, 100101, China e-mail: lhzhu@ss10.igtp.ac.cn Fax: +86-10-64873428, CN aut https://doi.org/10.1007/s001220051517 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001220051517 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zou J. H. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut NATIONALLICENCE 700 1- Pan X. B. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut NATIONALLICENCE 700 1- Chen Z. X. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut NATIONALLICENCE 700 1- Xu J. Y. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut NATIONALLICENCE 700 1- Lu J. F. Agriculture Collage, Yangzhou University, Yangzhou, Jiangsu, 225009, China, CN aut NATIONALLICENCE 700 1- Zhai W. X. Institute of Genetics, Chinese Academy of Sciences, Beijing, 100101, China e-mail: lhzhu@ss10.igtp.ac.cn Fax: +86-10-64873428, CN aut NATIONALLICENCE 700 1- Zhu L. H. Institute of Genetics, Chinese Academy of Sciences, Beijing, 100101, China e-mail: lhzhu@ss10.igtp.ac.cn Fax: +86-10-64873428, CN aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer