Mapping the virus and host genes involved in the resistance response in cucumber mosaic virus-infected Arabidopsis thaliana

Hideki Takahashi, Masashi Suzuki, Keiko Natsuaki, Takuma Shigyo, Kumiko Hino, Tohru Teraoka, Daijiro Hosokawa, Yoshio Ehara

    Research output: Contribution to journalArticlepeer-review

    69 Citations (Scopus)

    Abstract

    A yellow strain of cucumber mosaic virus (CMV) [CMV(Y)] induces a resistance response characterized by inhibition of virus systemic movement with development of necrotic local lesions in the virus-inoculated leaves of Arabidopsis thaliana ecotype C24. In this report, the avirulence determinant in the virus genome was defined and the resistance gene (RCY1) of C24 was genetically mapped. The response of C24 to CMV containing the chimeric RNA3 between CMV(Y) and a virulent strain of CMV indicated that the coat protein gene of CMV(Y) determined the localization of the virus in the inoculated leaves of C24. The RCY1 locus was mapped between two CAPS markers, DFR and T43968, which were located in the region containing genetically defined disease resistance genes and their homologues. These results indicate that the resistance response to CMV(Y) in C24 is determined by the combination of the coat protein gene and RCY1 on chromosome 5.

    Original languageEnglish
    Pages (from-to)340-347
    Number of pages8
    JournalPlant and Cell Physiology
    Volume42
    Issue number3
    DOIs
    Publication statusPublished - 2001

    Keywords

    • Avirulence gene
    • Coat protein
    • Cucumber mosaic virus
    • Gene-for-gene
    • Hypersensitive response
    • Resistance gene

    ASJC Scopus subject areas

    • Physiology
    • Plant Science
    • Cell Biology

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