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Genetic variability of Phytophthora sojae isolates from Argentina

机译:阿根廷大豆疫霉菌的遗传变异

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Phytophthora sojae causes root and stem rot, one of the most important diseases of soybean worldwide. Genetic diversity of 32 Phytophthora sojae isolates of different geographic origin from Argentina was evaluated with RAPD markers. The isolates were collected from diseased soybean plants and soil samples from Santa Fe, Buenos Aires, Cordoba and Entre Rios provinces, in the Pampeana Region. DNA was amplified with 20 decanucleotides primers. Seven primers amplified 49 fragments, of which 35 were polymorphic, indicating high variability. RAPD analysis detected intraspecific variability even among isolates of the same geographic origin.
机译:大豆疫霉菌引起根腐病,是世界范围内最重要的大豆疾病之一。使用RAPD标记评估了32种来自阿根廷的不同地理来源的大豆疫霉菌的遗传多样性。分离株是从潘佩亚纳州圣达菲,布宜诺斯艾利斯,科尔多瓦和恩特雷里奥斯省的患病大豆植物和土壤样品中收集的。用20个十核苷酸引物扩增DNA。 7个引物扩增了49个片段,其中35个是多态性,表明变异性高。 RAPD分析甚至在相同地理来源的分离株之间也检测到种内变异性。

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