Characterization and molecular mapping of RsrR, a resistant gene to maize head smut
文献类型: 外文期刊
第一作者: Li, W. H.
作者: Li, W. H.;Guo, L. Q.;Wu, S. W.;Weng, M. L.;Jin, D. M.;Wang, B.;Li, W. H.;Wu, J. Y.;Xu, X. D.;Jiang, Y.;Dong, H. Y.;Li, G.;Ru, Z. G.
作者机构:
关键词: Gene mapping;Maize head smut resistant gene;Marker assisted selection;SRAP markers;SSR markers
期刊名称:EUPHYTICA ( 影响因子:1.895; 五年影响因子:2.181 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Maize head smut (MHS) caused by the fungi Sporisorium reilianum (Kuhn) Landon and Fullerton (S. reilianum) is the most serious disease occurred in China recently. There are only a few reports concerning the genetics of this disease and the resistant gene of maize. In this paper a new dominant resistant gene to MHS caused by the pathogen Shenyang-1 of S. reilianum was discovered from a newly developed resistant inbred line 'R24' and was named RsrR. RsrR gene was molecular tagged and mapped on the long arm of maize chromosome 1 via simple sequence repeat-bulked segregant analysis (SSR-BSA) and sequence related amplified polymorphism (SRAP)-BSA analysis, the nearest linkage marker is 2.5 cM apart from the RsrR gene. The gene RsrR has been transferred into two elite maize inbred lines, 'Huangzao4' and 'Qi319', through traditional hybridization and marker assisted selection. The converted lines can be used in maize MHS-resistance breeding.
分类号: S3
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