| 湖北省稻瘟病重发区病菌群体遗传多样性的研究 |
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| 引用本文： | 杨小林,长舒,张佑宏.湖北省稻瘟病重发区病菌群体遗传多样性的研究[J].农业科学与技术,2017,18(3). |
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| 作者姓名： | 杨小林 长舒 张佑宏 |
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| 作者单位： | 1. 农作物重大病虫草害防控湖北省重点实验室,湖北省农业科学院植保土肥所,湖北武汉 430064;2. 湖北省生物农药工程研究中心,湖北武汉,430064 |
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| 基金项目： | 湖北省农科院竞争性项目，国家重点研发计划(2016YFD0200807-1).Supported by Competitive Project of Hubei Academy of Agricultural Sciences，Major Research and Development Program of China |
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| 摘 要： | 基于rep-Pot2-PCR指纹技术,对湖北省稻瘟病重发区病菌群体DNA指纹图谱进行了分析,结果表明,湖北省稻瘟病菌群体具有较丰富的遗传结构,在73%的指纹相似性水平上可将204菌株划分成112个不同的单元型和14个遗传谱系:14个谱系中没有出现绝对的优势谱系:不同年份稻瘟病菌群体遗传结构存在差异,但未发生明显的演化.DNA指纹分析的遗传谱系与生理小种(致病类型)之间呈复杂对应关系.
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| 关 键 词： | 水稻 稻瘟病菌 遗传谱系 |
Population Genetic Structure of Magnaporthe oryzae in Rice Blast Epidemic Areas in Hubei Province |
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| Xiaolin YANG,Shu ZHANG,Youhong ZHANG.Population Genetic Structure of Magnaporthe oryzae in Rice Blast Epidemic Areas in Hubei Province[J].Agricultural Science ＆ Technology,2017,18(3). |
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| Authors: | Xiaolin YANG Shu ZHANG Youhong ZHANG |
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| Abstract: | Single-spore isolates were obtained from rice-growing fields of Yuan'an in Hubei Province where dce blast seriously occurs in some yearn.DNA fingerprints were divided into 112 haplotypes and 14 lineages at 73％ genetic similarity level.Among the lineages,no dominant lineages were found.The population genetic structures of Magnaporthe oryzae were not distinctly different in different years.The analysis also showed that there wasn't obvious simple relationship between pathotypes and fingerprint groups. |
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| Keywords: | Rice (Oryza sativa L ) Magnaporthe oryzae Genetic lineage |
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