DNA polymorphism among barley NILs of cv. Pallas, carrying genes for resistance to powdery mildew (Blumeria graminis f. sp. hordei)
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Barley powdery mildew, caused by the pathogen Blumeria graminis f. sp. hordei is an important disease of barley (Hordeum vulgare L.). The random amplified polymorphic DNA (RAPD) method was used to detect DNA polymorphism among 7 Pallas near-isogenic lines (NILs) carrying Mla3, Mla12, Mlk, Mlp, Mlat, Mlg and MlLa genes for resistance to B. graminis f. sp. hordei. From among 500 random 10-mer primers tested, 3 were specific for NIL P2 (Mla3), 1 for P10 (Mla12), 6 for P17 (Mlk), 46 for P19 (Mlp), 4 for P20 (Mlat), 6 for P21 (Mlg), and 4 for P23 (MlLa). The results of this study demonstrated that the RAPD technique is a useful tool for detecting DNA polymorphism among Pallas NILs.
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P.Cz. Czembor, Plant Breeding and Acclimatization Institute, Radzikow, 05-870 Blonie, Poland