Sgt1, but not Rar1, is essential for the RB-mediated broad-spectrum resistance to potato late blight.

ABSTRACT:

Background

Late blight is the most serious potato disease world-wide. The most effective and environmentally sound way for controlling late blight is to incorporate natural resistance into potato cultivars. Several late blight resistance genes have been cloned recently. However, there is almost no information available about the resistance pathways mediated by any of those genes.

Results

We previously cloned a late blight resistance gene, RB, from a diploid wild potato species Solanum bulbocastanum. Transgenic potato lines containing a single RB gene showed a rate-limiting resistance against all known races of Phytophthora infestans, the late blight pathogen. To better understand the RB-mediated resistance we silenced the potato Rar1 and Sgt1 genes that have been implicated

SUBMITTER: Bhaskar PB 

PROVIDER: S-EPMC2267190 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature