T.V. Lebedeva, E.V. Zuev
Federal Research Center the N.I. Vavilov All-Russion Institute of Plant Genetic Resources, B. Morskaya, 42, 44, St. Petersburg, 190000, Russia
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Summary. We studied 284 cultivars of common wheat for resistance to powdery mildew Blumeria graminis f. sp. tritici (Bgt) under conditions of Leningrad region (Pushkin). The population of fungus had virulence genes for Pm1, Pm2, Pm3a-d, Pm4a, Pm5a, Pm6, Pm7, Pm8, Pm9, Pm16, Pm19.Test-lines PmKu and Pm12 had immunity to this fungus. The next samples showed high resistance both in phase of seedlings and earing and flowering: K-64649, K-64656, K-64657, K-64997, K-64998 (Russia), K-65257 (Ukraine), K-64433, K-64434, K-64436 (Sweden). In order to identify the resistance genes we crossed these varieties with each other, with susceptible lines and with lines-carriers of the effective genes PmKu and Pm12. According to the analysis of disjoining F2 into the resistant and susceptible forms all varieties are characterized by monogenic control of resistance to Bgt. Samples K-64997 and K-64998 have the same gene of resistance. One and the same gene controls resistance to Bgt of samples from Sweden. Resistance to powdery mildew of varieties from Russia, Sweden and Ukraine is controlled by different genes. These genes are different from the highly effective genes PmKu (T. spelta) and Pm12 (Aegilops speltoides).
Keywords: wheat, powdery mildew, resistance, inheritance, genes.
Author Details: T.V. Lebedeva, Cand. Sc. (Biol.), Senior Researcher (е-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); E.V. Zuev, Cand. Sc. (Biol.), Leading Researcher.
For citation: Lebedeva T.V., Zuev E.V., Studies of powdery mildew resistance (Blumeria graminis f. sp. tritici Golov.) in varieties of common wheat (Triticum aestivum L.). Dostizheniya nauki i tekhniki APK. 2015. V. 29. № 7. pp. 17-19 (In Russ)