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  1. Article: Diversity and similarity of wheat powdery mildew resistance among three allelic functional genes at the Pm60 locus

    Zou, Shenghao / Shi, Wenqi / Ji, Jiahao / Wang, Huanming / Tang, Yansheng / Yu, Dazhao / Tang, Dingzhong

    plant journal. 2022 June, v. 110, no. 6

    2022  

    Abstract: Cultivated wheat is continually exposed to various pathogens. Blumeria graminis f. sp. tritici (Bgt) causes powdery mildew disease and significant yield loss. Pm60 was cloned from Triticum urartu and confers race‐specific powdery mildew resistance in ... ...

    Abstract Cultivated wheat is continually exposed to various pathogens. Blumeria graminis f. sp. tritici (Bgt) causes powdery mildew disease and significant yield loss. Pm60 was cloned from Triticum urartu and confers race‐specific powdery mildew resistance in wheat. Pm60a and Pm60b are allelic variants of Pm60 and have two leucine‐rich repeat motifs deletions and insertions, respectively, which were detected in other T. urartu accessions. Through map‐based cloning, virus‐induced gene silencing, and stable transformation assays, we demonstrated that Pm60a and Pm60b conferred Bgt E09 resistance resembling that provided by Pm60. However, the homozygous Pm60a (but not Pm60 or Pm60b) transformants driven by the native promoters lacked race‐specific resistance when they were inoculated with Bgt E18. As all three T. urartu accessions contained the three foregoing alleles, they had high resistance to Bgt E18. Pyramiding Pm60a with either of the allelic genes in F₁ plants did not cause mutual allele suppression or interference with Bgt E18 resistance. Deletion (but not insertion) of the two leucine‐rich repeat motifs in Pm60a substantially narrowed the resistance spectrum. In T. urartu accession PI428210, we identified another locus adjacent to Pm60a and resistant to Bgt E18. Characterization of the alleles at the Pm60 locus revealed their diversity and similarity and may facilitate wheat breeding for resistance to powdery mildew disease caused by B. graminis f. sp. tritici.
    Keywords Triticum urartu ; alleles ; homozygosity ; loci ; powdery mildew ; wheat
    Language English
    Dates of publication 2022-06
    Size p. 1781-1790.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1088037-9
    ISSN 1365-313X ; 0960-7412
    ISSN (online) 1365-313X
    ISSN 0960-7412
    DOI 10.1111/tpj.15771
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Diversity and similarity of wheat powdery mildew resistance among three allelic functional genes at the Pm60 locus.

    Zou, Shenghao / Shi, Wenqi / Ji, Jiahao / Wang, Huanming / Tang, Yansheng / Yu, Dazhao / Tang, Dingzhong

    The Plant journal : for cell and molecular biology

    2022  Volume 110, Issue 6, Page(s) 1781–1790

    Abstract: Cultivated wheat is continually exposed to various pathogens. Blumeria graminis f. sp. tritici (Bgt) causes powdery mildew disease and significant yield loss. Pm60 was cloned from Triticum urartu and confers race-specific powdery mildew resistance in ... ...

    Abstract Cultivated wheat is continually exposed to various pathogens. Blumeria graminis f. sp. tritici (Bgt) causes powdery mildew disease and significant yield loss. Pm60 was cloned from Triticum urartu and confers race-specific powdery mildew resistance in wheat. Pm60a and Pm60b are allelic variants of Pm60 and have two leucine-rich repeat motifs deletions and insertions, respectively, which were detected in other T. urartu accessions. Through map-based cloning, virus-induced gene silencing, and stable transformation assays, we demonstrated that Pm60a and Pm60b conferred Bgt E09 resistance resembling that provided by Pm60. However, the homozygous Pm60a (but not Pm60 or Pm60b) transformants driven by the native promoters lacked race-specific resistance when they were inoculated with Bgt E18. As all three T. urartu accessions contained the three foregoing alleles, they had high resistance to Bgt E18. Pyramiding Pm60a with either of the allelic genes in F
    MeSH term(s) Alleles ; Ascomycota ; Disease Resistance/genetics ; Leucine ; Plant Breeding ; Plant Diseases/genetics ; Triticum/genetics
    Chemical Substances Leucine (GMW67QNF9C)
    Language English
    Publishing date 2022-04-29
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1088037-9
    ISSN 1365-313X ; 0960-7412
    ISSN (online) 1365-313X
    ISSN 0960-7412
    DOI 10.1111/tpj.15771
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: TuRLK1, a leucine-rich repeat receptor-like kinase, is indispensable for stripe rust resistance of YrU1 and confers broad resistance to multiple pathogens

    Zou, Shenghao / Tang, Yansheng / Xu, Yang / Ji, Jiahao / Lu, Yuanyuan / Wang, Huanming / Li, Qianqian / Tang, Dingzhong

    BMC Plant Biol. 2022 Dec., v. 22, no. 1 p.280-280

    2022  

    Abstract: BACKGROUND: YrU1 is a nucleotide-binding site (NBS) and leucine-rich repeat (LRR) protein (NLR), with additional ankyrin-repeat and WRKY domains and confers effective resistance to stripe rust fungus Puccinia striiformis f. sp. Tritici (Pst). YrU1 was ... ...

    Abstract BACKGROUND: YrU1 is a nucleotide-binding site (NBS) and leucine-rich repeat (LRR) protein (NLR), with additional ankyrin-repeat and WRKY domains and confers effective resistance to stripe rust fungus Puccinia striiformis f. sp. Tritici (Pst). YrU1 was positionally cloned in the progenitor species of the A genome of bread wheat, Tricicum urartu, recently. However, the molecular mechanism and components involved in YrU1-mediated resistance are not clear. RESULTS: In this study, we found that the transcript level of TuRLK1, which encodes a novel leucine-rich repeat receptor-like kinase, was up-regulated after inoculation with Pst in the presence of YrU1, through RNA-seq analysis in T. urartu accession PI428309. TuRLK1 contained only a small number of LRR motifs, and was localized in the plasma-membrane. Transient expression of TuRLK1 induced hypersensitive cell death response in N. benthamiana leaves. Silencing of TuRLK1, using barley stripe mosaic virus (BSMV)-induced gene silencing (VIGS) system in PI428309 that contains YrU1, compromised the resistance against stripe rust caused by Pst CY33, indicating that TuRLK1 was required for YrU1-activated plant immunity. Furthermore, overexpression of TuRLK1 could enhance powdery mildew resistance in bread wheat and Arabidopsis thaliana after inoculating with the corresponding pathogens. CONCLUSIONS: Our study indicates that TuRLK1 is required for immune response mediated by the unique NLR protein YrU1, and likely plays an important role in disease resistance to other pathogens.
    Keywords Arabidopsis thaliana ; Barley stripe mosaic virus ; Puccinia striiformis f. tritici ; cell death ; disease resistance ; fungi ; genes ; immune response ; plasma membrane ; powdery mildew ; sequence analysis ; stripe rust ; wheat
    Language English
    Dates of publication 2022-12
    Size p. 280.
    Publishing place BioMed Central
    Document type Article ; Online
    ZDB-ID 2059868-3
    ISSN 1471-2229
    ISSN 1471-2229
    DOI 10.1186/s12870-022-03679-6
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: TuRLK1, a leucine-rich repeat receptor-like kinase, is indispensable for stripe rust resistance of YrU1 and confers broad resistance to multiple pathogens.

    Zou, Shenghao / Tang, Yansheng / Xu, Yang / Ji, Jiahao / Lu, Yuanyuan / Wang, Huanming / Li, Qianqian / Tang, Dingzhong

    BMC plant biology

    2022  Volume 22, Issue 1, Page(s) 280

    Abstract: Background: YrU1 is a nucleotide-binding site (NBS) and leucine-rich repeat (LRR) protein (NLR), with additional ankyrin-repeat and WRKY domains and confers effective resistance to stripe rust fungus Puccinia striiformis f. sp. Tritici (Pst). YrU1 was ... ...

    Abstract Background: YrU1 is a nucleotide-binding site (NBS) and leucine-rich repeat (LRR) protein (NLR), with additional ankyrin-repeat and WRKY domains and confers effective resistance to stripe rust fungus Puccinia striiformis f. sp. Tritici (Pst). YrU1 was positionally cloned in the progenitor species of the A genome of bread wheat, Tricicum urartu, recently. However, the molecular mechanism and components involved in YrU1-mediated resistance are not clear.
    Results: In this study, we found that the transcript level of TuRLK1, which encodes a novel leucine-rich repeat receptor-like kinase, was up-regulated after inoculation with Pst in the presence of YrU1, through RNA-seq analysis in T. urartu accession PI428309. TuRLK1 contained only a small number of LRR motifs, and was localized in the plasma-membrane. Transient expression of TuRLK1 induced hypersensitive cell death response in N. benthamiana leaves. Silencing of TuRLK1, using barley stripe mosaic virus (BSMV)-induced gene silencing (VIGS) system in PI428309 that contains YrU1, compromised the resistance against stripe rust caused by Pst CY33, indicating that TuRLK1 was required for YrU1-activated plant immunity. Furthermore, overexpression of TuRLK1 could enhance powdery mildew resistance in bread wheat and Arabidopsis thaliana after inoculating with the corresponding pathogens.
    Conclusions: Our study indicates that TuRLK1 is required for immune response mediated by the unique NLR protein YrU1, and likely plays an important role in disease resistance to other pathogens.
    MeSH term(s) Arabidopsis ; Basidiomycota/physiology ; Disease Resistance/genetics ; Leucine/metabolism ; Plant Diseases/microbiology ; Triticum/metabolism
    Chemical Substances Leucine (GMW67QNF9C)
    Language English
    Publishing date 2022-06-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 2059868-3
    ISSN 1471-2229 ; 1471-2229
    ISSN (online) 1471-2229
    ISSN 1471-2229
    DOI 10.1186/s12870-022-03679-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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