Institut für Rebenzüchtung
Climate change has become a critical challenge for viticulture. The changing typicality of the wines and a compression of the harvest logistics require adjustments in viticulture, which can only be achieved through variety adjustments. It is therefore important to increase the efficiency of breeding. Molecular markers for marker-assisted selection (MAS) for resistance to e.g. powdery mildew and downy mildew have led to a significant increase in breeding efficiency in the sustainability segment. However, comparable markers for use in MAS for the selection of new varieties with adaptation to the future challenges of climatic changes (e.g. ripening process, typicality-determining components) are missing. The project focuses on a) the Pinot Noir/Pinot Noir Précoce family (PN/PNP family) and b) an extensive genome-wide association study (GWAS) on 250 varieties of the species Vitis vinifera (ViniGWAS) with regard to parameters relevant to climate change, e.g. bud burst, flowering, time of veraison or sugar/acid content at harvest. The goal is to identify and characterize genome regions in more detail in order to derive markers for MAS from the knowledge gained to increase the efficiency of grapevine breeding.
Forschungsring des Deutschen Weinbaus
