Identification and Mapping of RRS1, a Single Recessive Locus in Arabidopsis thaliana that Confers Resistance to Ralstonia solanacearum
The establishment of a novel and experimentally useful pathosystem between Arabidopsis thaliana and Ralstonia solanacearum is described. This pathogen is capable of wilting several ecotypes of this model crucifer in an hrp-dependent manner. One ecotype, Nd- 1, was found to be resistant to several R. solanacearum strains. Genetic studies indicate that the resistance is conferred by a single recessive gene designated RRS1, which is located on chromosome V. The fine mapping of this locus is underway.
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