Macrowine 2021
IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Grapevine diversity and viticultural practices for sustainable grape growing 9 Understanding the genetic determinism of phenological and quality traits in ‘Corvina’ grape variety for selection of improved genotypes

Understanding the genetic determinism of phenological and quality traits in ‘Corvina’ grape variety for selection of improved genotypes


Downy and powdery mildew are major issues in grapevine cultivation, requiring many phytosanitary treatments to ensure yield and quality. Climatic changes are also challenging grape cultivation in several areas, leading to anticipation of phenological events and increasing impact of temperature on grape quality. Beside disease resistance, adaptation of varieties to changing climate is thus an additional breeding target, which includes the selection of late ripening varieties that may escape the warmer summer conditions, while preserving distinctive performance and wine quality. With the aim to increase our understanding of the genetic determinism for phenological and quality traits, we have crossed the autochthonous cv. Corvina, typical of the Verona province area, to previously identified divergent varieties. Segregating cross populations of Corvina x Solaris and Cabernet-Sauvignon x Corvina including a high number of seedlings were developed, propagated and grown in field conditions for mapping of traits. High-density genetic maps based on SNPs obtained through hybridization to an Illumina Vitis18KSNP chip are produced. Field phenotyping includes the evaluation of the main phenological stages (budbreak, flowering, veraison and ripening) together with the assessment of some morphological and quality traits at harvest on all progenies with the final purpose of QTL mapping. Moreover, the introgression of resistance sources from cv Solaris is assessed in the relative cross. Response to Plasmopara viticola is investigated especially in selected resistant genotypes under field conditions or following inoculation of leaf discs and shows different degrees of resistance in some Corvina offsprings differing in the number of inherited Rpv loci. Based on resistance gene introgression as well as on phenotypic parameters, some selections are being propagated for a deeper characterization. New markers derived from the characterization of Corvina-crosses are expected to further assist future selections. Altogether, the described approaches will improve our understanding of the genetic control of phenology and berry quality traits, thus assisting breeding in this important local variety.


Publication date: September 2, 2021

Issue: Macrowine 2021

Type: Article


Diana Bellin, 1, Martina Marini, 1, Ron Shmuleviz, 1, Alice Baroni, 1,  Riccardo Mora, 1, Tahir Mujtaba, 1, Martina Zerneri, 1, Giada Bolognesi, 1, Jessica Vervalle, 2, Laura Costantini, 3, Maria Stella Grando, 3, Giovanni Battista Tornielli, 1,  Annalisa Polverari, 1

1, Department Of Biotechnology, University Of Verona,
2, Stellenbosch University
3, Fondazione Edmund Mach – Istituto Agrario San Michele All’Adige

Contact the author


grapevine, corvina, plasmopara viticola, plant phenology


Related articles…

Recent advancements in understanding the terroir effect on aromas in grapes and wines

Terroir is about the link between wine and its origin. It has long been understood by sensory evaluation that the taste of wine from a given variety can be related to its origins. Specific organoleptic characteristics of wine are influenced by environmental factors such as soil and climate. By deconstructing the effect of measurable soil and climate parameters on grape and wine aroma compounds,

Simgi® platform as a tool for the study of wine active compounds in the  gastrointestinal tract

Simgi® platform pursues the need for dynamic in vitro simulation of the human gastrointestinal tract optimized and adapted to food safety and health fields. The platform has confirmed the model’s suitability since its first’s studies with the consistency between the simulated colonic metabolism of wine polyphenols and the metabolic evolution observed with the intake of wine in human intervention studies [1]. 

The effect of ultrasounds in syrah wine quality is not dependent on the ripening or sanitary status of the grapes

Different studies have demonstrated that the application of ultrasounds (US) to crushed grapes improves chromatic characteristics of the wines (1,2), increases their polysaccharide content (3) and some aroma compounds are also favored (4,5)

Spatial variability of the nutrient distribution in Jerez vineyard soils (Spain)

From a fertility standpoint, the vine has to extract from the soil mineral substances necessary for its existence. However, the amount of certain available nutrients does not always correspond to a proportional increase in quality.

Monitoring gas-phase CO2 in the headspace of champagne glasses through diode laser spectrometry

During Champagne or sparkling wine tasting, gas-phase CO2 and volatile organic compounds invade the headspace above glasses [1], thus progressively modifying the chemical space perceived by the consumer. Gas-phase CO2 in excess can even cause a very unpleasant tingling sensation perturbing both ortho- and retronasal olfactory perception [2]. Monitoring as accurately as possible the level of gas-phase CO2 above glasses is therefore a challenge of importance aimed at better understanding the close relationship between the release of CO2 and a collection of various tasting parameters.