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>Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic
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Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic
A total of 199 Phytophthora infestans isolates were obtained from leaves, tubers and fruits of infected crops of potato and tomato in different regions of the Czech Republic in 2003, 2004 and 2005. They were analysed for mating type using the conventional pairing assay and PCR markers; 107 isolates were of A1 and 92 of A2 mating type. No self-fertile isolate was found. Our study is the first report of the presence and distribution of the A2 mating type of P. infestans in the Czech Republic. The co-existence of the two mating types may enable the pathogen to reproduce sexually, thus enhancing the diversity of its population countrywide.Keywords:potato late blight; mating types; PCR; CAPsdownload PDF Impact factor (Web of Science – Thomson Reuters) 2016: 0.742
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机译：分别于2003、2004和2005年从捷克共和国不同地区的马铃薯和番茄感染作物的叶，块茎和果实中获得了199种疫霉菌分离株。使用常规配对分析和PCR标记对它们的交配类型进行了分析。 ; A1交配的有107株，A2交配的有92株。未发现自育菌株。我们的研究是在捷克共和国首次出现A2交配类型致病疫霉的报道。两种交配类型的共存可能使病原体有性繁殖，从而增强了全国种群的多样性。交配类型PCR; CAPsdownload PDF影响因子（Web of Science –汤森路透）2016：0.742
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