Diversity of virulence phenotypes among annual populations of <i>Puccinia triticina</i> originating from common wheat in Israel during the period 2000–15

Kosman, Evsey; Ben-Yehuda, Pnina; Manisterski, J.; Sela, Hanan

doi:10.1111/ppa.13078

Cited by 15 publications

(12 citation statements)

References 29 publications

(36 reference statements)

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“…In Europe and the Mediterranean area, virulence surveys of P . triticina have been regularly performed for many years, including the Czech Republic (Hanzalová & Bartoš, 2011), France (Goyeau et al, 2006), Hungary (Manninger, 2006), Poland (Woźniak‐Strzembicka & Czajowski, 2009), Russia (Gultyaeva et al, 2017, 2020), and Israel (Kosman et al, 2014; Kosman, Ben‐Yehuda, et al, 2019). Generally, most studies were conducted on isolates collected from bread and durum wheat only, with few studies examining virulence differences between populations of P .…”

Section: Introductionmentioning

confidence: 99%

Pathogenic and genetic diversity ofPuccinia triticinafrom triticale in Poland between 2012 and 2015

et al. 2021

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Triticale (×Triticosecale), the first human-made crop species in a hexaploid form (AABBRR), was obtained by crossing tetraploid wheat (Triticum durum or T. turgidum) with cereal rye (Secale cereale or S. montanum) (Ammar et al., 2004). The first commercially available triticale cultivars for farmers became available in the 1960s.Recently, the global cultivated area of triticale has been estimated at approximately 4 million hectares, with the largest areas occurring in Poland, Belarus, Germany, and France. In Poland, triticale is grown on approximately 1.3 million hectares. In general, triticale combines the high grain quality and yield potential of wheat with the resistance to biotic and abiotic stresses of rye (Ammar et al., 2004; Audenaert et al., 2014).Leaf (brown) rust, which is caused by Puccinia triticina, is an important wheat disease in all geographic regions of the world where wheat is cultivated (Bolton et al., 2008). The development of leaf rust is strongly influenced by environmental conditions, among which temperature and moisture play the most significant role (Kaul & Shaner, 1989). In Poland, under favourable disease conditions, a peak of leaf rust development may start in June and last until leaves senesce at the end of July. For many years, triticale was considered

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Section: Introductionmentioning

confidence: 99%

Pathogenic and genetic diversity ofPuccinia triticinafrom triticale in Poland between 2012 and 2015

et al. 2021

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“…Importantly, remarkable shifts in populations of P . triticina around 2010–2011 were reported in Israel (Kosman et al , 2019) as well as in Slovakia (Hanzalová et al , 2012, 2016). This could be indirect evidence that global climate changes served as an additional trigger to the modifications of P .…”

Section: Discussionmentioning

confidence: 99%

Regional and temporal differentiation of virulence phenotypes of Puccinia triticina from common wheat in Russia during the period 2001–2018

2020

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| INTRODUC TI ONLeaf rust, caused by the fungus Puccinia triticina, is the most common rust disease on wheat in Russia and its destructiveness has varied over time and between regions (Sanin, 2012). The use of resistant varieties is the most effective and environmentally friendly method of protection of wheat against leaf rust.Analysis of the population structure of P. triticina and its variability allows for the development of specific wheat varieties resistant to leaf rust and adjustment of their deployment in each separate region.P. triticina has a long history of population studies since physiologic specialization of wheat leaf rust was first described (Mains and Jackson, 1926). The first set of differentials, consisting of eight wheat varieties with different resistance genes (Malakoff [Lr1 gene], Carina [Lr2b = Lr2 2 ], Brevit [Lr2c = Lr2 3 ], Webster [Lr2a], Loros [Lr2 4 ], Mediterranean [Lr3a], Hussar [Lr11], and Democrat [Lr3a]), was suggested by Mains and Jackson (1926) and widely used for analysingAbstract Leaf rust, caused by the fungus Puccinia triticina, is one of the most damaging rust diseases of wheat in Russia. Populations of P. triticina were monitored in seven regions of Russia from 2001 to 2018, with a total of 5,191 single urediniospore isolates from bread wheat (Triticum aestivum) being analysed. Populations have changed significantly in all regions since 2012, after 2 years of drought (2010-2011). Regional collections of P. triticina were also significantly different between the two periods 2001-2009 and 2012-2018, with changes along two geographic gradients from West Siberia to the north-west and south-west (North Caucasia) of the European part of Russia. All tested isolates were avirulent to resistance gene Lr9 in 2001-2009 but, since 2010, virulence to Lr9 has occurred and annually increased in the Asian part of Russia (Ural and West Siberia) due to deployment of cultivars with the Lr9 gene. Virulence to Lr2a and Lr15 was considerably lower in Dagestan (6%-33%) andall European regions (35%-67%) than in Asian regions (84%-96%). During 2001-2009, virulence on Lr1 was also lower in Dagestan (33%) and the European regions (50%-77%) than in Asia (91%-96%); however, by 2012-2018, nearly all isolates were virulent on Lr1. Remarkable changes were observed in frequencies of P. triticina races defined by their virulence/avirulence to Lr1 and Lr2a genes. We postulate the P. triticina population in Dagestan is specific to that area and pathogen populations in European and Asian parts of Russia are distinct. K E Y W O R D SKosman distance, leaf rust, Lr resistance genes, population structure, Triticum aestivum | 861 GULTYAEVA ET AL.

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“…Recently, pathotypes virulent to Lr24 have also been found in New Zealand [ 12 ]. In Israel, Lr24 still retains its effectiveness [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Leaf Rust Resistance Genes in the Adult and Juvenile Stages in Southern Russia in 2011–2020

Волкова

Kudinova

Ваганова

et al. 2022

Plants

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Puccinia triticina Erikss. is a causative agent of wheat leaf rust spread worldwide. Wheat rust is a major disease on wheat in southern regions of Russia, which are leaders in grain production and have favorable conditions for pathogen development. In this paper we studied the effectiveness of 52 NILs of cv. Thatcher with Lr genes in field trials and 41 NILs—in the juvenile phase in a greenhouse during 2011–2020. We conclude that the lines with Lr9, Lr42 and Lr43+24 genes remained immune in the adult phase during ten years of research. Lines with Lr genes: 19, 24, 29, 36, 37, 38, 43, 45, 47, 50 showed efficiency in field tests (1R–5R on the CIMMYT scale). No immune lines to Puccinia triticina were registered in the juvenile phase during 2011–2020. The line with the Lr9 gene remained immune up to 2020; Lr19 and Lr41—up to 2015; Lr42—up to 2018, and Lr50—up to 2019. In 2020, there was an increase of P. triticina isolates with virulence to Thatcher lines with Lr: 9, 14a, 16, 19, 21, 28, 30, 33, 40, 45, W, 50. Additionally, we registered a change in infection types towards more susceptible in isogenic Lr gene lines: 1, 2a, 12, 14b, 15, 18, 20, 23, 25, 28, 29, 32, 35, 36, 37, 38, 40, 44, 45 in the field. A sharp increase in the frequencies of virulent isolates was recorded in 2018–2020 due to unfavorable weather in the growing seasons. This indicates the ability of a dangerous pathogen to rapidly evolve in response to biotic and abiotic stresses. Therefore, annual monitoring of the reaction of isogenic lines, selected released varieties and the study of the virulence of the phytopathogen are important measures necessary to prevent and control leaf rust in grain-producing regions of the world.

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Diversity of virulence phenotypes among annual populations of Puccinia triticina originating from common wheat in Israel during the period 2000–15

Cited by 15 publications

References 29 publications

Pathogenic and genetic diversity ofPuccinia triticinafrom triticale in Poland between 2012 and 2015

Pathogenic and genetic diversity ofPuccinia triticinafrom triticale in Poland between 2012 and 2015

Regional and temporal differentiation of virulence phenotypes of Puccinia triticina from common wheat in Russia during the period 2001–2018

Effectiveness of Leaf Rust Resistance Genes in the Adult and Juvenile Stages in Southern Russia in 2011–2020

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