中国棉花枯萎菌生理小种的RAPD分析 |
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引用本文: | 冯洁,孙文姬,石垒岩,马存.中国棉花枯萎菌生理小种的RAPD分析[J].菌物学报,2000,19(1). |
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作者姓名: | 冯洁 孙文姬 石垒岩 马存 |
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作者单位: | 中国农业科学院植物保护研究所!北京100094 |
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基金项目: | 植物病虫害生物学国家重点实验室1998年度开放基金 |
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摘 要: | 利用随机扩增多态性DNA(RAPD)分子标记方法对我国棉花枯萎菌3个生理小种(3、7、8号)进行遗传多样性分析,以筛选出的10个随机引物对采自我国11个省(自治区)的26个代表菌株及国外3个不同生理小种对照菌株进行RAPD-PCR增,共产生了140个RAPD分子标记,其中87.8%具有多态性。通过聚类分析确定了供试小种间的亲缘关系,并寻找到了我国3、7、8号小种的特异条带,为确立我国棉花枯萎菌生理小种在国际上的分类地位提供了可靠的分子证据。
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关 键 词: | 棉花 枯萎镰刀菌 生理小种 RAPD分析 |
RAPD ANALYSIS OF PHYSIOLOGIC RACES OF FUSARIUMOXYSPORUM F. SP.VASINFECTUM IN CHINA |
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Authors: | FENG Jie SUN Wen-Ji SHI Lei-Yan MA Cun |
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Abstract: | We used random amplified polymorphic DNA(RAPD) markers to assess genetic diversity among 3races (3,7,8) of F. o. f. sp. vasinfectum in China. A total of 26 isolates from 11 provinces in China and 3isolates from foreign origin were amplified with 10 decamer primers, 140 RAPD markers were obtained. 87.8%were polymorphisms. Genetic relationships among the isolates were determined by hierarchical cluster method.and had found special band of 3, 7, 8 races. RAPD analysis can provide reliable molecular evidences ofdetermine classification position of F. o. f. sp. vasinfectum of China in the world. |
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Keywords: | Cotton Fusarium oxysporum f sp vasinfectam Physiologic race RAPD analysis |
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