terclim by ICS banner
IVES 9 IVES Conference Series 9 Genome wide association mapping of phenology related traits in Vitis vinifera L

Genome wide association mapping of phenology related traits in Vitis vinifera L

Abstract

Climate change, with rise in temperatures, is leading to an advance in the dates of phenological stages, with a loss in quality of the grape final product. Therefore, the understanding of the genetic determinants driving the phenological stages of flowering, veraison and the interval between them, represents a target for the development of grapevine’s cultivar adapted to the changing environment.
Here we conducted a GWA study to identify SNPs significantly associated to flowering time, veraison time and to the interval among them. A germplasm collection (CREA-VE in Susegana, Treviso, Italy) including 649 grapevine’s cultivar representing 365 unique genotypes was considered. Cultivars were phenotyped for flowering time and veraison time along 11 years. Flowering-veraison intervals were also derived and distribution for all traits was inspected and eventually corrected. For this analysis we have built a genetic dataset including 6679 SNPs. SNPs were either recovered from litterature or integrated by genotyping through grapevine Illumina SNPChip 18K and used for evaluating the genetic structure. MLM analysis conducted independently for the three different phenological traits identified a list of few significantly associated SNPs. Among the three traits flowering time yielded the highest number of associated SNPs. For each trait SNPs consistently associated across more years were found. Moreover partially overlapping SNPs associated both to veraison time and flowering-veraison time interval were found. Interestingly most of the associated SNPs co-localized with QTL regions already known either for flowering or veraison traits in grapevine. Putative candidate genes underlying such regions are discussed.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Giada Bolognesi1, Pietro Delfino1, Chiara Broccanello1, Riccardo Mora1, Martina Marini1, 2, Massimo Gardiman2, Mirella Giust2, Diego Tomasi2, Manna Crespan2, Diana Bellin1*

1Department of Biotechnology, University of Verona, Verona, Italy
2 CREA Research Centre for Viticulture and Enology, Conegliano (TV), Italy

Contact the author*

Keywords

Climate change, GWAS, phenology, candidate genes

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Does the location of wine cellars have significant impact on the evolution of madeira wine polyphenols?

Unlike table wines, Madeira Wine (MW,17-22% ABV) benefits from a long aging period under thermo-oxidative aging conditions, during which it gains its unique and complex flavour. A broad study is ongoing and aims to assess if the differences in the storage conditions impact significantly the evolution of MWs during canteiro aging. Considering that polyphenols have a significant role in the wine aging, we intended to appraise if there are significant differences in the evolution trends of polyphenols of MWs aging in different cellars under canteiro. Different MWs were aged into brand-new oak casks in two different wine cellars, one in Funchal (B) and other in Caniçal (Z). Temperature and humidity data were sensor recorded. RP-HPLC-DAD was used to perform the identification and quantification of polyphenols [1]. CIELab parameters were also assessed, using an UV-Vis spectrophotometer.

Read More

Sensory profile of wines obtained from disease-resistant varieties in La Rioja

The European wine industry is facing multiple challenges derived from climate change and the pressure of different fungal diseases that are compromising the production of traditional varieties. A sustainable alternative maybe the adoption of resistant varieties.
In this study, we have evaluated the enological potential of 9 resistant varieties (5 white and 4 red varieties) in La Rioja. Microvinifications were carried out with three biological replications. Oenological parameters were very diverse with acid content varying from 2.6 g/L to 6.6 g/L.

Read More

Efficacy of tannins of different botanical origin as partial or total substitute of SO2 to preserve a Cortese white wine during storage in cellar

While SO2 is one of the oldest and widest additive used in enology for its well-known antioxidant, anti-laccase and antimicrobial properties, it can cause health problems in some individuals.

Read More

OmicBots – An innovative and intelligent multi-omics platform facing wine sector challenges

To face emerging competition and challenges, wine producers globally rely on precision viticulture (PV) solutions to boost productivity, enhance quality, increase profitability, and reduce the environmental impact of vineyards. Current pv methods predominantly use multispectral sensor data from several platforms (satellites or vineyard installations). However, these applications generally use data analysis strategies lacking physiological grapevine support.

Read More

Methodology to assess vine cultivation suitability using climatic ranges for key physiological processes: results for three South African regions

Le climat a de fortes implications sur le bon fonctionnement physiologique de la vigne et a besoin d’être quantifié afin de déterminer l’aptitude des régions à la culture de la vigne. Une méthode, qui pourrait éventuellement servir à prévoir l’aptitude des régions à la culture de la vigne, est proposée.

Read More