terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 The exploitation of Croatian grapevine genetic resources for the breeding of new resistant cultivars 

The exploitation of Croatian grapevine genetic resources for the breeding of new resistant cultivars 

Abstract

Croatian viticulture is mainly based on native grapevine varieties susceptible to various diseases and pests, which leads to unsustainable use of large amounts of pesticides. The sustainable development of viticulture in the future will only be possible by increasing the resistance of the grapevine through the development of new resistant varieties. Breeding programs have been launched in the leading wine-growing countries to develop resistant varieties possessing high-quality levels. Native cultivars from Croatia are not included in the breeding programs of other countries. In 2015 a breeding program was started at the University of Zagreb Faculty of Agriculture. The long-term goal is to develop new varieties suitable for Croatian growing conditions, with stable and durable resistance using native germplasm and other sources of resistance.  

 

Native varieties Grk and  Dišeća ranina were selected as a starting point for the breeding program because they pose female flower type, aiming to develop breeding lines with female flowers. The source of resistance in the program’s first stage is the Panonia variety. After applying molecular markers in the population of seedlings expressing the high level of phenotypic resistance to downy and powdery mildew, several plants were detected that inherited all three resistant gene loci (Rpv3, Rpv12 – downy mildew resistance, Ren3 – powdery mildew resistance) from Panonia and female flower from chosen native varieties. They were included as mother plants in the program’s next step and were crossed to obtain breeding lines with additional resistant gene loci.

DOI:

Publication date: October 4, 2023

Issue: ICGWS 2023

Type: Article

Authors

Darko Preiner1,2*, Ivana Tomaz1,2, Iva Šikuten1,2, Zvjezdana Marković1,2, Petra Štambuk1,2, Jasminka Karoglan Kontić1,2, Domagoj Stupić1, Edi Maletić1,2

1University of Zagreb Faculty of Agriculture, Svetošimunska 25, Zagreb, Croatia
2 Center of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, Zagreb, Croatia

Contact the author*

Keywords

grapevine breeding, genetic resources, resistant varieties

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Ability of lactic acid bacterial laccases to degrade biogenic amines and OTA in wine

Two of the most harmful microbial metabolites for human health that can be present in wines and either fermented or raw foods are biogenic amines (BA) and ochratoxine A (OTA). Winemakers are aware of the need to avoid their presence in wine by using different strategies, one of them is the use of enzymes. Some recombinant laccases have been characterized and revealed as potential tools to degrade these toxic compounds in wine[1], specifically biogenic amines[2].

Read More

The use of δ13C as an indicator of water use efficiency for the selection of drought tolerant grapevine varieties

In the context of climate change with increasing evaporative demand, understanding the water use behavior of different grapevine cultivars is of critical importance. Carbon isotope discrimination (δ13C) measurements in wine provide a precise and integrated assessment of the water status of the vines during the sugar accumulation period in grape berries. When collected over multiple vintages on different cultivars, δ13C measurements can also provide insights into the effects of genotype on water use efficiency.

Read More

Towards a better understanding of cultivar susceptibility to esca disease: results from a pluriannual common garden monitoring

Grapevine (Vitis vinifera L.) exhibits a high level of genetic and phenotypic diversity among the approximately 6000 cultivars recorded. This perennial crop is highly vulnerable to numerous fungal diseases, including esca, which is a complex vascular pathology that poses a significant threat to the wine sector, as there is currently no cost-efficient curative method[1]. In this context, an effective approach to mitigate the impact of such diseases is by leveraging the crop’s genetic diversity. Indeed, susceptibility to esca disease appears to vary between cultivars, under artificial or natural infection. However, the mechanisms and varietal characteristics underlying cultivar susceptibility to esca are still unknown.

Read More

The influence of pre-heatwave leaf removal on leaf physiology and berry development

Due to climate change, the occurrence of heatwaves and drought events is increasing, with significant impact on viticulture. Common ways to adapt viticulture to a changing climate include site selection, genotype selection, irrigation management and canopy management. The latter mentioned being for instance source-sink manipulations, such as leaf removal, with the aim to delay ripening.

Read More

Unveiling a hidden link: does time hold the key to altered spectral signatures of grapevines under drought?

Remote sensing technology captures spectral data beyond the visible range, making it useful for monitoring plant stress. Vis-NIR (Visible-Near Infrared) spectroscopy (400-1000 nm) is commonly used to indirectly assess plant status during drought. One example is the widespread use of normalized difference vegetation index (NDVI) that is strongly linked to green biomass. However, a knowledge gap exists regarding the applicability of this method to all the drought conditions and if it is a direct correlation to the water status of the plant.

Read More