Сравнительный анализ популяций Puccinia triticina на твердой и мягкой пшенице

Variability of the Russian populations of <em>Puccinia triticina</em> under the influence of the host plant

“…Isolates from common wheat had a greater number of virulence alleles compared to those from durum wheat. No common phenotypes were found on durum and soft wheat (Shaydayuk et al, 2019;Shaydayuk, 2020). The virulence phenotypes of common wheat differed from those of durum wheat in all study areas, which indicates a difference in the composition of pathogen populations of T. durum and T. aestivum.…”

“…The first significant changes in the racial composition of populations of the leaf rust pathogen on hexaploid common wheat (Triticum aestivum L. 2n = 42, BBAADD genome) in the former USSR territory occurred in the 1950s. During this period, an increase was noted in the occurrence of race 77 and its biotypes, as well as races 20, 21, 52, and others that were previously absent (Shopina, 1969;Sorokina and Solomatin, 1975). In 1965-1968, everywhere, both in Russia and around the world, the quantity of race 122 began to increase.…”

“…In 1965-1968, everywhere, both in Russia and around the world, the quantity of race 122 began to increase. According to V. V. Shopina (1969), this was due to the cultivation of genetically similar cultivars in different countries and the use of similar resistance donors in plant breeding.…”

“…In 2017-2019, the All-Russian Institute of Plant Protection continued studies on populations of durum wheat (Shaydayuk et al, 2019;Shaydayuk, 2020). Geographically distant populations of P. triticina -North Caucasian (including samples from Dagestan, Krasnodar Krai and Rostov Oblast), Volga (Samara Oblast and Chuvashia), Ural (Chelyabinsk Oblast) and West Siberian (Altai Territory and Omsk Oblast) populations were studied.…”