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Poster

Session: Session 2 Presenting Authors at Posters (Odds)

P-047 - Genetic basis of rice resistance to the wheat blast disease

Wednesday, July 16, 2025
13:30 - 15:15  
Location: Confex Hall 3
Crop resistance genetics and genomics

    Presenting Author(s)

  • MS

    Motoki Shimizu

    Iwate Birotechnology Research Center
    Kitakami, Iwate, Japan

    • Author(s)

  • SA

    Soichiro Asuke

    Graduate School of Agricultural Science, Kobe University
    Kobe, JAPAN

  • NM

    Naomi Miyaji

    Iwate Biotechnology Research Center
    Kitakami, Iwate, Japan

  • HA

    Hiroaki Adachi

    Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University
    Kyoto, Kyoto, Japan

  • TS

    Toshiyuki Sakai

    Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University
    Kyoto, Kyoto, Japan

  • KO

    Kaori Oikawa

    Iwate Biotechnology Research Center
    Kitakami, Iwate, Japan

  • MB

    Mark J. Banfield

    Group Leader
    John Innes Centre
    Norwich, England, United Kingdom

  • SK

    Sophien Kamoun

    Group leader
    The Sainsbury Laboratory
    Norwich, England, United Kingdom

  • YT

    Yukio Tosa

    Graduate School of Agricultural Science, Kobe University
    Kobe, Hyogo, Japan

  • RT

    Ryohei Terauchi, PhD

    Professor
    Kyoto University
    Muko, Kyoto, Kyoto, Japan

The pandemic wheat blast is caused by Magnaporthe (Syn. Pyricularia) oryzae Triticum pathotype (MoT), while rice remains immune to these pathotype. However, the mechanisms underlying rice resistance to MoT isolates are not well understood . Here, we transformed a rice-infecting isolate with a set of effector proteins from an MoT isolate and identified novel immune receptor loci in the rice germplasm that confer resistance to wheat blast. One of these resistance loci, Pi-eTO5 encodes a quartet of NLR immune receptors that collectively contribute to disease resistance. The corresponding AVR gene (eTO5) is conserved across pandemic strains of the wheat blast fungus in both Asia and Africa. Another rice resistance locus, KRN, encodes a singleton NLR and recognizes two MoT AVR genes (eTO16 and eTO31) coding proteins with a high structural similarity. Our study reveals the genetic basis of rice resistance to wheat blast and provides valuable resistance genes for combating the wheat blast pandemic.