The wheat stem rust resistance gene Sr43 encodes an unusual protein kinase

Yu, Guotai; Matny, Oadi; Gourdoupis, Spyridon; Rayapuram, Naganand; Aljedaani, Fatimah R.; Wang, Yan L.; Nürnberger, Thorsten; Johnson, Ryan C.; Crean, Emma; Saur, Isabel M. L.; Gardener, Catherine; Yue, Yajuan; Kangara, Ngonidzashe; Steuernagel, Burkhard; Hayta, Şadiye; Smedley, Mark; Harwood, Wendy; Patpour, Mehran; Wu, Shuangye; Poland, Jesse; Jones, Jonathan D. G.; Reuber, T. Lynne; Ronen, Moshe; Sharon, Amir; Rouse, Matthew N.; Xu, Steven S.; Holušová, Kateřina; Bartoš, Jan; Molnár, István; Karafiátová, Miroslava; Hirt, Heribert; Blilou, Ikram; Jaremko, Łukasz; Doležel, Jaroslav; Steffenson, Brian J.; Wulff, Brande B. H.

doi:10.1038/s41588-023-01402-1

Cited by 42 publications

(19 citation statements)

References 64 publications

(80 reference statements)

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“…Further, oat lines with multiple sources of resistance may begin segregating following their initial release, further complicating the interpretation of phenotyping conducted at different institutions (Nguyen et al 2023). Finally, resistance loci effective against other rust fungi display temperature sensitivity (Adhikari et al 2000; Gousseau et al 1985; Niu et al 2014; Yu et al 2023). These, among other, factors, may partially explain the differences between 2019 assays conducted in the USA and 2020-2021 assays conducted in Taiwan.…”

Section: Discussionmentioning

confidence: 99%

Detection of oat crown rust disease in Taiwan (2019-2021)

Ho,

Henningsen,

Chen

et al. 2024

Preprint

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Oat is a minor forage crop grown in Taiwan. Only a few historical records of oat rust disease have been reported in the country, therefore the pathogen population remains poorly characterized. A rust-like disease outbreak was detected at the Experimental Farm of National Taiwan University in 2019, which caused significant damage to the field experiments. To determine the identity of the pathogen responsible for this disease outbreak, we collected infected foliar material. Disease signs suggested infection by the oat crown rust fungus. Hence, common procedures in rust pathology were applied to confirm the identity of the pathogen with phenotypic and molecular diagnostic techniques. A total of 50 field samples from infected oat cultivars were collected in 2019 and five rust isolates were purified in 2020 and 2021. Phylogenetic analysis based on ITS sequences indicated that the pathogen was likely Puccinia coronata f. sp. avenae (Pca), which was further supported by the placement of Taiwanese isolate NTU-01 with other Pca representatives in a phylogenetic tree of Basidiomycete fungi. Phenotyping assays across 36 oat differential lines demonstrated that Taiwanese isolates are phenotypically similar with relatively limited virulence. This study presents the first molecular confirmation of Pca in Taiwan and reports the virulence profiles of Taiwanese Pca population.

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Section: Discussionmentioning

confidence: 99%

Detection of oat crown rust disease in Taiwan (2019-2021)

Ho,

Henningsen,

Chen

et al. 2024

Preprint

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“…Furthermore, Pm24 , an allele of the tandem kinase Rwt4 that recognises PWT4 of M. oryzae , (Arora et al 2023) also confers resistance against powdery mildew of wheat (Lu et al 2020). The stem rust resistance gene Sr62 from Aegilops sharonensis has been identified as an orthologue of Pm24/Rwt4 (Yu et al 2023). A small number of genes of different classes have been shown to confer resistance to multiple pathogens in wheat or its progenitors.…”

Section: Discussionmentioning

confidence: 99%

The wheat powdery mildew resistance genePm4also confers resistance to wheat blast

O’Hara,

Steed,

Goddard

et al. 2023

Preprint

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Wheat blast, caused by the fungusMagnaporthe oryzae, threatens global cereal production since its emergence in Brazil in 1985 and recently spread to Bangladesh and Zambia. Here we demonstrate that theAVR-Rmg8effector, common in wheat-infecting isolates, is recognised by the genePm4, previously shown to confer resistance to specific races ofBlumeria graminisf.sp.tritici, the cause of powdery mildew of wheat. We show thatPm4alleles differ in their recognition of differentAVR-Rmg8alleles, and some confer resistance only in seedling leaves but not spikes making it important to select for those alleles that function in both tissues. This study has identified a gene recognising an important virulence factor present in wheat blast isolates in Bangladesh and Zambia and represents an important first step towards developing durably resistant wheat cultivars for these regions.

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“…The 2022 field season coincided with a record high heat dome across the Pacific Northwest. Many stem rust resistance genes in wheat are known to be temperature sensitive, such as Sr6 (Leonard & Szabo, 2005), Sr15 (Gao et al, 2019), Sr43 (Yu et al, 2023). Lines carrying these genes usually exhibit higher infection types at elevated temperatures.…”

Section: Adult Stem Rust Resistancementioning

confidence: 99%

Registration of the “Woodies” multi–rust‐resistant barley germplasm

Massman,

Hernandez,

Clare

et al. 2024

J of Plant Registrations

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Selection for resistance to plant diseases is a continuous effort on the part of plant breeders. Sources of genetic resistance are often limited, despite considerable discovery efforts. Stem rust and stripe rust are two diseases of particular importance in barley (Hordeum vulgare L.) production. The present work aims to develop and deploy genotypes with resistance to these diseases that can be used in future breeding efforts. The Woodies, Woody‐1 (DH160733; Reg. no. GP‐218, PI 704479) and Woody‐2 (DH160754; Reg. no. GP‐219, PI 704480), are two doubled‐haploid genotypes produced via F1 anther culture named in honor of the late Lynn “Woody” Gallagher. These two‐row spring habit barley germplasm accessions were released by the Oregon Agricultural Experiment Station in 2023. These genotypes have demonstrated resistance to both stem and stripe rust at the seedling and adult plant stage in trials conducted between 2018 and 2023. The genetic basis of this resistance appears to be a novel quantitative trait locus conferring resistance to both diseases on chromosome 5H that is different from the known rpg4/Rpg5 complex for stem rust resistance found on the same chromosome. Seed can be requested from the Oregon State University Barley Breeding Program or from the NLGRP Germplasm repository.

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The wheat stem rust resistance gene Sr43 encodes an unusual protein kinase

Cited by 42 publications

References 64 publications

Detection of oat crown rust disease in Taiwan (2019-2021)

Detection of oat crown rust disease in Taiwan (2019-2021)

The wheat powdery mildew resistance genePm4also confers resistance to wheat blast

Registration of the “Woodies” multi–rust‐resistant barley germplasm

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