Genomic structure and phylogeny of the plant pathogen Ralstonia solanacearum inferred from gene distribution analysis.

ABSTRACT: In the present study, we investigated the gene distribution among strains of the highly polymorphic plant pathogenic beta-proteobacterium Ralstonia solanacearum, paying particular attention to the status of known or candidate pathogenicity genes. Based on the use of comparative genomic hybridization on a pangenomic microarray for the GMI1000 reference strain, we have defined the conditions that allowed comparison of the repertoires of genes among a collection of 18 strains that are representative of the biodiversity of the R. solanacearum species. This identified a list of 2,690 core genes present in all tested strains. As a corollary, a list of 2,338 variable genes within the R. solanacearum species has been defined. The hierarchical clustering based on the distribution of variable genes

SUBMITTER: Guidot A 

PROVIDER: S-EPMC1797399 | biostudies-literature | 2007 Jan

REPOSITORIES: biostudies-literature