Dubina E.V.; M.G. Ruban; S.V. Garkusha; S.A. Lesnyak
Based on the use of modern technologies of molecular DNA marking, we introduced and pyramided the genes for blast resistance Pi-ta, Pi-b, Pi-1, Pi-2, Pi-33 and tolerance to prolonged flooding Sub1A in domestic rice varieties to give them long-term resistance and tolerance to these stressors. As a result of a number of backcrosses, breeding material with introduced and pyramided genes for blast resistance and tolerance to prolonged flooding was obtained. The control of dominant alleles of target genes during the breeding process was carried out using molecular labeling methods. Rice varieties Allians, Lenaris with the Pi-ta gene were released in 2019 and 2020, respectively, rice varieties Utes with the Pi-2 gene and Voskhod (Pi-2, Pi-33), adapted to growing conditions in the south of Russia, resistant to the Krasnodar population of the pathogen, as well as having high yield and quality, were submitted for State variety testing in 2020.
dubina
