Field-based insights into global grapevine methylation under conditions of recurring water constraint
Water limitation is a major environmental constraint affecting grapevine productivity and fruit quality worldwide.
The XIVth International Symposium on Grapevine Breeding and Genetics is held in Zagreb (Croatia) from June 28 to July 2, 2026.
The event is organised by the Faculty of Agriculture, University of Zagreb in collaboration with Institute for Adriatic Crops and Karst Reclamation Split, Institute of Agriculture and Tourism Poreč, Faculty of Agrobiotechnical Sciences Osijek.
Water limitation is a major environmental constraint affecting grapevine productivity and fruit quality worldwide.
Grapevine cultivation is heavily dependent on chemical pesticides to manage biotic or abiotic stressors.
In order to maintain grapevine production and quality under fluctuating and stressful environments, we urgently need some innovative genetic solutions.
Preserving the genetic heterogeneity of grapevine provides a valuable reservoir of allelic combinations that can offer genetic traits to contrast biotic and abiotic stresses, highly advantageous for breeding programs.
Breeding for complex quantitative traits remains a major challenge in perennial crop systems, particularly for traits related to water use efficiency (WUE), which are strongly influenced by environmental variation and difficult to phenotype at scale.
‘White Riesling’ is the flagship grapevine cultivar of the Rheingau region. However, due to climate change, its cultivation faces increasingly challenging conditions, including drought stress, high solar radiation, and heightened pathogen pressure.
Although the grapevine (Vitis vinifera) is a thermophilic plant wich is well adapted to regions with warm and dry summers, it is increasingly affected by climate change.
Climate change increasingly challenges viticulture through heatwaves and drought on the one hand as well as high precipitation levels on the other.
High-quality planting material is important for sustainable viticulture, and the early establishment of grapevine cuttings depends on rapid adventitious rooting and vigorous shoot growth.
Although the grapevine (Vitis spp.) is among the oldest and most economically significant fruit species globally (Candar et al., 2021), its genetic improvement faces major bottlenecks due to long juvenile periods and extended cycles for phenotype evaluation