Effectiveness of Stem Rust Resistance Genes in Southern Russia

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2024-10-02 DOI:10.1111/jph.13407

Galina V. Volkova, Ekaterina V. Gladkova, Olga A. Kudinova, Olesya O. Ignateva

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引用次数: 0

Abstract

Wheat stem rust (caused by Puccinia graminis f.sp. tritici) is a damaging disease widespread in all grain-producing regions of the world. In this work, the effectiveness of Sr genes was analysed under field conditions in the southern region of Russia (Krasnodar Krai, Stavropol Krai and Rostov Oblast) during 2016-2021. The data were obtained using a set of 46 isogenic lines and varieties with artificial inoculation. The Sr31 gene proved absolute effectiveness in the field. Effective (1R–10R) Sr genes were the following: 5, 12, 35 and 37; moderately effective (10MR–30MR) Sr genes: 1, 6, 9g, 10, 11, 13, 14, 15, 20, 22, 23, 24, 25, 32, 33, 38 and WLD. Lines with Sr genes 7a, 7b, 8a, 8b, 9a, 9b, 9d, 9e, 9f, 16, 17, 19, 21, 26, 27, 29, 30, 36, 39, 40, 44, Dp2, Gt and Tmp were ineffective in the adult plant phase (30MS–70S). Polymorphism of infection types and disease severity was noted for most of these lines in different years. Ongoing analysis of the efficiency of Sr genes in the region is important to prevent the risk of epidemics, and lines with stem rust resistance genes that have shown efficiency can be used as donors in breeding programmes.

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俄罗斯南部茎锈病抗性基因的有效性

小麦茎锈病（由Puccinia graminis f.sp.tritici引起）是一种普遍存在于世界所有粮食生产地区的危害性病害。在这项工作中，我们在俄罗斯南部地区（克拉斯诺达尔边疆区、斯塔夫罗波尔边疆区和罗斯托夫州）的田间条件下分析了 Sr 基因在 2016-2021 年期间的有效性。数据是通过一组 46 个人工接种的同源品系和品种获得的。事实证明，Sr31 基因在田间具有绝对的有效性。有效（1R-10R）的 Sr 基因如下：5、12、35 和 37；中等有效（10MR-30MR）的 Sr 基因有：1、6、9g、10、11、13、14、15、20、22、23、24、25、32、33、38 和 WLD。带有 Sr 基因 7a、7b、8a、8b、9a、9b、9d、9e、9f、16、17、19、21、26、27、29、30、36、39、40、44、Dp2、Gt 和 Tmp 的品系在成株期（30MS-70S）无效。这些品系中的大多数在不同年份的感染类型和病害严重程度存在多态性。持续分析该地区茎锈病基因的有效性对预防流行病风险非常重要，具有茎锈病抗性基因的品系如显示出有效性，可作为育种计划的供体。

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来源期刊

Journal of Phytopathology 生物-植物科学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Phytopathology publishes original and review articles on all scientific aspects of applied phytopathology in agricultural and horticultural crops. Preference is given to contributions improving our understanding of the biotic and abiotic determinants of plant diseases, including epidemics and damage potential, as a basis for innovative disease management, modelling and forecasting. This includes practical aspects and the development of methods for disease diagnosis as well as infection bioassays. Studies at the population, organism, physiological, biochemical and molecular genetic level are welcome. The journal scope comprises the pathology and epidemiology of plant diseases caused by microbial pathogens, viruses and nematodes. Accepted papers should advance our conceptual knowledge of plant diseases, rather than presenting descriptive or screening data unrelated to phytopathological mechanisms or functions. Results from unrepeated experimental conditions or data with no or inappropriate statistical processing will not be considered. Authors are encouraged to look at past issues to ensure adherence to the standards of the journal.