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Assessment of powdery mildew (Blumeria graminis f. sp hordei) resistance genes in Turkish barley varieties

机译:土耳其大麦品种中白粉病(Blumeria graminis f。sp hordei)抗性基因的评估

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Thirty-four Turkish barley (Hordeum vulgare) varieties were tested for the presence of resistance genes (R-genes) to powdery mildew (Blumeria graminis f. sp. hordei) using the "leaf segment test" with nine isolates of the fungus. The most commonly found R-gene was Mla8, while a combination of R-genes Mlg and Ml(CP) was found in three varieties (Tokak 157/37, Beysehir 98, Konevei 98). The gene Mlh was found in four varieties (Obruk 86, Anadolu 86, Cildir 02, Ozdemir 05), while no R-gene was found inthree varieties (Hamidiye 85, Yesevi 93, Bulbul 89). No clear inferences could be made for the partly-resistant varieties Gemici 7243, Yea 793.12 and Akhisar 98 using the test isolates selected, which suggests the presence of still unidentified R-genes.Overall, 10 previously characterized R-genes for powdery mildew (Mla8, MI(La), Mlg, Ml(CP), Mlh, Mlat, Mla1, M1h, Mla7, Mlra) were present in Turkish barley varieties, along with some other(s) still to be identified.
机译:使用“叶段试验”和九种真菌菌株,测试了34个土耳其大麦(Hordeum vulgare)品种对白粉病(Blumeria graminis f。hordei)的抗性基因(R基因)的存在。最常见的R基因是Mla8,而R基因Mlg和Ml(CP)的组合存在于三个变种中(Tokak 157/37,Beysehir 98,Konevei 98)。在四个变种(Obruk 86,Anadolu 86,Cildir 02,Ozdemir 05)中发现了Mlh基因,而在三个变种(Hamidiye 85,Yesevi 93,Bulbul 89)中均未发现R基因。使用所选的测试菌株无法对部分抗药性的Gemici 7243,Yea 793.12和Akhisar 98做出明确的推断,这表明仍存在尚未鉴定的R基因。总体上,以前鉴定的10种白粉病R基因已经存在(Mla8 ,大麦(La),大麦(Mlg),大麦(CP),大麦(Mlh),大麦(Mlat),Mla1,M1h,Mla7,Mlra)存在于土耳其大麦品种中,还有其他一些尚待确定。

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