Resistance to Plasmopara viticola in a grapevine segregating population is associated with stilbenoid accumulation and with specific host transcriptional responses

ABSTRACT: Downy mildew, caused by the oomycete Plasmopara viticola, is a serious disease in Vitis vinifera, the most commonly cultivated grapevine species. Several wild Vitis species have instead shown resistance to this pathogen and they have been used as a source to introgress resistance into a V. vinifera background. Stilbenoids represent the major phytoalexins in grapevine, and their toxicity has been strictly related to the specific compound. The aim of this study was to assess the resistance response to P. viticola of the Merzling x Teroldego cross by profiling the stilbenoid content of the leaves of the entire population and the transcriptome of resistant and susceptible individuals following infection. A three-year analysis of the population?s response to artificial inoculation showed that i

ORGANISM(S): Vitis vinifera

SUBMITTER: Giulia Malacarne 

PROVIDER: E-GEOD-28851 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress