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 journalArticle

61 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 Jan 1

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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