Immunological characteristics of soft winter wheat varieties in conditions of the CBR

Zeleneva, Yu.V.; Sudnikova, Valentina Pavlovna; Buchneva, Galina Nikolaevna

doi:10.21515/1999-1703-96-95-99

Cited by 6 publications

(2 citation statements)

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“…In the North-West region, disease appears in the last half of June at the flowering stage of winter wheat, and the maximum of the Pst development is detected at the ripening stage. A similar situation with yellow rust incidence has been observed in the region of Central Chernozem [21]. The disease is observed sporadically in the Western Siberia and Volga region on spring wheat [19,20].…”

Section: Discussionsupporting

confidence: 63%

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Resistance of Modern Russian Winter Wheat Cultivars to Yellow Rust

Gultyaeva,

Shaydayuk

2023

Plants

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Over the last decade, the significance of yellow rust caused by Puccinia striiformis (Pst) has substantially increased worldwide, including in Russia. The development and cultivation of resistant genotypes is the most efficient control method. The present study was conducted to explore the yellow rust resistance potential of modern common winter wheat cultivars included in the Russian Register of Breeding Achievements in 2019–2022 using the seedling tests with an array of Pst races and molecular markers linked with Yr resistance genes. Seventy-two winter wheat cultivars were inoculated with five Pst isolates differing in virulence and origin. Molecular markers were used to identify genes Yr2, Yr5, Yr7, Yr9, Yr10, Yr15, Yr17, Yr18, Yr24, Yr25 and Yr60. Thirteen cultivars were resistant to all Pst isolates. The genes Yr5, Yr10, Yr15 and Yr24 that are effective against all Russian Pst races in resistant cultivars were not found. Using molecular methods, gene Yr9 located in translocation 1BL.1RS was detected in 12 cultivars, gene Yr18 in 24, gene Yr17 in 3 and 1AL.1RS translocation with unknown Yr gene in 2. While these genes have lost effectiveness individually, they can still enhance genetic diversity and overall yellow rust resistance, whether used in combination with each other or alongside other Yr genes.

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Section: Discussionsupporting

confidence: 63%

“…Over the last 5 years, the significance of Pst has increased markedly in other Russian regions. The disease has appeared in the regions North-West [18], West Siberia [19], Volga [20] and Central Chernozem regions [21]. Global climate changes contribute to changes in disease incidence and severity.…”

Section: Introductionmentioning

confidence: 99%