MITEs in the promoters of effector genes allow prediction of novel virulence genes in Fusarium oxysporum.

ABSTRACT:

Background

The plant-pathogenic fungus Fusarium oxysporum f.sp.lycopersici (Fol) has accessory, lineage-specific (LS) chromosomes that can be transferred horizontally between strains. A single LS chromosome in the Fol4287 reference strain harbors all known Fol effector genes. Transfer of this pathogenicity chromosome confers virulence to a previously non-pathogenic recipient strain. We hypothesize that expression and evolution of effector genes is influenced by their genomic context.

Results

To gain a better understanding of the genomic context of the effector genes, we manually curated the annotated genes on the pathogenicity chromosome and identified and classified transposable elements. Both retro- and DNA transposons are present with no particular overrepresented class.

SUBMITTER: Schmidt SM 

PROVIDER: S-EPMC3599309 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature