WP3: Exploiting the genetic diversity in grapevine

Objectives

The objectives of WP3 are:

  1. To exploit the grapevine genetic resources in order to select genotypes showing high resistance against biotic (fungi, insects) and abiotic stresses (drought, heat). The evaluation will be carried out via established and novel phenotyping techniques and genomic tools
  2. To provide thanks to the evaluation data on genetic resources, the basis for a grapevine improvement initiative enabeling a concerted European pre-breeding effort
  3. To select interesting clones for their berry composition in response to temperature and drought. The remaining clones will be carefully kept in collections to be made available for other research and development projects.

Background


During the last decades grapevine breeding was focused on selecting vines showing high wine quality and resistance against powdery and downy mildew and, to a lesser extent, to abiotic stress tolerance. Around the world a rather limited number of resistance donors have been used to develop a first set of high quality fungus resistant cultivars that will be tested in WP2 for their sustainable use. There is still a need to identify new sources of resistance in the grapevine germplasm. A major breakthrough for breeding comes from the development of genomic tools and of improved phenotyping techniques or strategies. Breeding programs should address the major fungal diseases and insect pests as well as abiotic stress (drought, heat) in relation to quality determining factors (e.g. sugars, acids, color, phenolics, aroma and precursors). An efficient exploitation of grapevine genetic resources will foster a concerted European pre-breeding effort sharing work and exchanging both the resulting plant material (clones, introgression lines, pseudo back crosses, pyramidized lines) and molecular tools. InnoVine will contribute to the broadening of the basis of resistance in relation to quality by several means. The first one will be based on a screening of new sources of resistance to the main diseases (powdery mildew, downy mildew, black rot and Phylloxera) to be controlled in viticulture and for which genetic approaches are amenable. The second one will consist in a screening of genetic resources for adaptation to environmental stresses in relation to quality based on parameters of models or phenotyping strategies developed in WP1. The third one will refer to pyramiding of different resistances in elite cultivars as a task within the forthcoming years. The results of these screening efforts will be accessible through the European Vitis database. Markers for novel resistances/tolerance will be established in a few cases. Pyramiding of resistance will build on introgression and/or elite breeding lines carrying different resistances that have already been developed by InnoVine partners, many of them being caracterized in WP2 or assayed in WP4.

Work Package leader


Dr. Reinhard Töpfer
JKI – Institute for Grapevine Bredding Geilweilerhof
76833 Sibeldignen
Germany

Other partners involved

INRA, CSIC, ISA, PTE, IGA, UNIVR, UNIMI, ABI, IFV (ENTAV), FORCE A and VCR

 
 
European Union
Innovine is a European collaborative project that has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement n° 311775.
Legal notice - Site map - copyright Innovine ©2013