玉米主要病害抗性遗传研究进展
摘要：玉米病原微生物来源广泛，包括真菌、细菌、病毒和卵菌纲等，常在叶片、雌雄穗和根茎等部位引起病症，对玉米生产造成严重影响。玉米属异花授粉作物，地域分布广泛，遗传资源丰富，基因组多样性明显，蕴含着大量质量和数量性状抗病位点。近年来，针对玉米主要病害开展了大量的抗病基因定位和发掘工作。到目前为止，至少克隆了4个主效抗病基因，定位了大量的抗病基因／QTL位点，获得了一批抗病获选基因。在理论研究的基础上，积极开展分子标记辅助的抗病基因／QTL的回交导入和聚合工作，取得了明显的改良效果。从玉米真菌病害、病毒病、卵菌纲和细菌病害等方面，总结了近年来玉米抗病遗传研究的进展。...
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| Published in | 中国农业科技导报 no. 3; pp. 18 - 29 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国农业大学，国家玉米改良中心，北京 100193
2013
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| Subjects | |
| Online Access | Get full text |
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| Summary: | 摘要：玉米病原微生物来源广泛，包括真菌、细菌、病毒和卵菌纲等，常在叶片、雌雄穗和根茎等部位引起病症，对玉米生产造成严重影响。玉米属异花授粉作物，地域分布广泛，遗传资源丰富，基因组多样性明显，蕴含着大量质量和数量性状抗病位点。近年来，针对玉米主要病害开展了大量的抗病基因定位和发掘工作。到目前为止，至少克隆了4个主效抗病基因，定位了大量的抗病基因／QTL位点，获得了一批抗病获选基因。在理论研究的基础上，积极开展分子标记辅助的抗病基因／QTL的回交导入和聚合工作，取得了明显的改良效果。从玉米真菌病害、病毒病、卵菌纲和细菌病害等方面，总结了近年来玉米抗病遗传研究的进展。 |
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| Bibliography: | maize ; disease; disease resistant QTL; disease resistant gene A wide range of pathogenic microorganisms, including fungi, bacteria, viruses and oomycetes, induce diseases on leaf, florescence, stalk and root of maize, and pose a grave threat on maize production. Maize is a cross- pollinated crop and rich in genetic resource. Maize has highly diverse in genome architecture and contains a huge number of qualitative and quantitative resistance loci. During the past few years, a great progress has been made towards the gene-mapping and exploration of major disease resistance gene/QTL in maize. Until now, at least 4 major resistance genes were cloned and a number of candidate genes were obtained, along with large-scale mapping of numerous resistance gene/QTL. These researches greatly accelerated marker-assisted introgression or polymerization of resistance genes/QTLs into high-yield potential but susceptible maize lines, and this is proved to be very efficiency in resistance breeding program. In this paper, we sum |
| ISSN: | 1008-0864 |
| DOI: | 10.3969/j.issn.1008-0864.2013.03.03 |