terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Genetic study of wild grapevines in La Rioja region

Genetic study of wild grapevines in La Rioja region

Abstract

Since the mid-1980s, several surveys have been carried out in La Rioja to search for populations of the sylvestrisgrapevine subspecies (Vitis vinifera L. subsp. sylvestris Gmelin). The banks of the Ebro River and its tributaries (Alhama, Cidacos, Leza, Iregua, Najerilla, Oja and Tirón rivers), as well as the surrounding vegetation of their valleys have been covered. So far, all the populations found are alluvial, forming part of the riparian vegetation of the Najerilla (the first reported population in La Rioja [1]), Iregua, and the vicinity of Oja valleys. Nevertheless, doubts arose from the beginning about the ‘sylvestris purity’ of some of these wild vines. In this work, leaves and/or cuttings from 83 vines have been used for genetic analyses: 63 vines were sampled in the wild in La Rioja region (17 from Najerilla banks, 43 from Iregua banks, and 3 from Agualinos stream, tributary of the Oja river), and 20 vines were sampled in the grapevine sylvestris collection of the University of La Rioja, originally collected as wild vines from the Najerilla valley. DNAs were extracted and genotyped at 6 microsatellite and 240 SNP markers. A total of 58 different genotypes were found, 20 in the Najerilla population, 36 in the Iregua population and 2 in the Oja population. These genotypes were included in a large genetic structure analysis of more than 2.800 genotypes representing worldwide sylvestrisand sativa subspecies. More than 84% of the wild samples from La Rioja showed a high membership coefficient to the sylvestris population, supporting their sylvestris condition. A local analysis focused on genotypes of cultivated and wild vines found in La Rioja separated them into two main clusters, with a clear division between sylvestris and cultivated vines. Some wild vine genotypes were found in intermediate positions between these two groups, indicating the existence of an introgression of the sativa gene pool into the sylvestris population, constituting an additional threat to the sylvestris subspecies.

Acknowledgements: This work is part of the project “Diversidad genética en la vid y adaptación al cambio climático” (PID2020-120183RB-I00), funded by MCIN / AEI /10.13039/501100011033.

1)  De Toda F. M. and J. C. Sancha (1999) Characterization of Wild Vines in La Rioja (Spain). Am. J. Enol. Vitic. 50: 443-446, doi: 10.5344/ajev.1999.50.4.443.

DOI:

Publication date: October 9, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Javier Ibáñez1*, Javier Tello1, Fernando Martínez de Toda1, José Manuel Valle2, Álvaro Rodríguez-Miranda2, Carlos Alvar Ocete3, José Miguel Martínez-Zapater1, Rafael Ocete3

1 Instituto de Ciencias de la Vid y del Vino (CSIC, UR, CAR). Finca La Grajera, Ctra. de Burgos Km. 6, 26007 Logroño, La Rioja. Spain
2 Built Heritage Research Group (GPAC), University of the Basque Country (UPV/EHU), Vitoria- Gasteiz. Spain
3 Freelance, Tirgo, La Rioja. Spain

Contact the author*

Keywords

introgression, genetic structure, microsatellite, SNP, sylvestris, Vitis vinifera, wild

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

INTEGRAPE guidelines and tools: an effort of COST Action CA17111

INTEGRAPE was a European interdisciplinary network for “data integration to maximize the power of omics for grapevine improvement” (CA17111, https://integrape.eu/), funded by the European COST Association from September 2018 to 2022. This Action successfully developed guidelines and tools for data management and promoted the best practices in grapevine omics studies with a holistic future vision of: “Imagine having all data on grapevine accessible in a single place”.

Read More

Distribution and sensory impact of new oak wood-derived compounds in wines

Despite the numerous research studies carried out in recent years, the study of wine aroma remains of great interest due to its complexity. Wine maturation in oak barrels is described as an important step in the production of quality wines. In fact, oak wood develops several aromatic nuances through its toasting which can be released into the wine. A great deal of work has been performed in order to identify the wood-derived volatile compounds that contribute to wine aroma (e.g., whisky-lactone, maltol, eugenol, guaiacol, vanillin).

Read More

Impact of toasting and botanical origin on oak wood (Q. sp.) volatilome using untargeted GCxGC-ToFMS analysis

Many works have been carried out to identify the key aroma volatile compounds of oak wood (e.g., whisky-lactone, furfural, maltol, eugenol, guaiacol, vanillin) using conventional gas chromatography coupled with olfactometry and mass spectrometry (GC-O-MS). Inspired by recent untargeted approaches in the field of food “omics”, this work aims to extend our knowledge on the impact of cooperage process on the volatile composition of oak wood using two-dimensional comprehensive gas chromatography coupled with time of flight mass spectrometry (GCxGC-ToFMS).

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

Ecophysiological characterisation of terroir effects on Vitis vinifera L. Chardonnay and pinot noir in south african cool climate regions

Terroir encompasses environmental (climate, geology, soil and topography), genetic (cultivar and clone) and human factors (oenological and viticultural practices). Climate change brings about shifts in the suitability of a region for the growth of specific grapevine cultivars. This study focused on climatic and fruit parameters (berry size, weight, pH, total acidity (TA) and phenolics) to characterise the terroir effect in Vitis vinifera L. cultivars Chardonnay and Pinot Noir vineyards in the Cape South Coast region (Walker Bay and Elgin).

Read More