terclim by ICS banner
IVES 9 IVES Conference Series 9 Veraison as determinant for wine quality and its potential for climate adapted breeding

Veraison as determinant for wine quality and its potential for climate adapted breeding

Abstract

The evaluation of new grapevine genotypes regarding their potential to produce high quality wines is the time limiting factor in the process of grapevine breeding. Hence, the development of quality-related markers useable in marker-assisted selection (MAS) as well as in prediction models for this bottleneck trait will tremendously enhance breeding efficiency. In extensive studies a training set of a segregating white wine F1 population (150 F1 genotypes = POP150; `Calardis Musqué´ x `Villard Blanc´) was deeply phenotyped and genotyped for model development and QTL analysis.

The high variance in ripening time within this population was identified as major factor influencing the quality potential of the individual genotypes. This is mainly induced by the early veraison locus Ver1 on chromosome 16 genetically inherited by ‘Calardis Musqué’. Ver1 could be traced back to the early ripening ‘Pinot Noir’ (PN) clone ‘Pinot Precoce Noir’ (PPN). Many important quality attributes of the population were directly affected, especially sugars, organic acids, pH value and key aroma compounds. For some of these constituents the Ver1 locus shows the highest genetic impact in QTL analysis. Understanding the genetic base of ripening and the subsequently resulting effects on quality offers breeders knowledge and helpful tools for the early and efficient selection of genotypes carrying hidden (at least until the first full yield) potential for quality oriented climate-adaption. Furthermore, it enables the implementation of additional selection criteria in marker-assisted selection (MAS), when stacking of resistance loci is no longer the limiting factor in seedling production.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Tom Heinekamp1, Franco Röckel1, Maria Maglione1, Lena Frenzke2, Torsten Wenke2, Jochen Vestner3, Stefan Wanke2, Ulrich Fischer3, Reinhard Töpfer1, and Florian Schwander1*

1Institute for Grapevine Breeding Geilweilerhof, Julius Kühn-Institut, Siebeldingen, Germany
2Technische Universität Dresden, Institut für Botanik, Dresden, Germany
3Dienstleistungszentrum Ländlicher Raum (DLR) Rheinpfalz, Institute for Viticulture and Oenology, Breitenweg 71, Neustadt an der Weinstraße, Germany

Contact the author*

Keywords

climate change, wine quality, cool climate viticulture, marker development

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Comparative analytical and sensory profiling of Armenian orange wines from widely cultivated grape varieties under low-intervention skin-contact vinification

Orange (skin-contact) wines are experiencing renewed global interest, yet published data remain scarce for Armenian white varieties and local low-intervention practices.

Training rats to drink red wine: effects of different drinking approaches on drinking/feeding habits, weight gain and survival from myocardial infarction

The habit of regular, moderate wine consumption, particularly with meals, is associated with protective effects from coronary heart disease. Epidemiological studies looking at myocardial protection/recovery focus mainly on the effects of red wine due to its high content in antioxidants, especially polyphenols. In several previous studies, conducted in our laboratory, we have concentrated on the effects of moderate consumption of white wine, by experimental animals (rats), gaining a significant experience in technical and procedural challenges. The scientific literature, and our past experience, suggests that rats are resilient towards consumption of full bodied, barrique red wines.

High levels of copper and persistent synthetic pesticides in vineyard soils

Downy mildew (Plasmopara viticola), powdery mildew (Erysiphe necator) and bunch rot (Botrytis cinerea) are the most prevalent fungal diseases in viticulture.

Composition and extractability of grape anthocyanin glucosides under different environmental conditions: terroir and vintage effects

Two terroirs of the Eger Wine District (a steep-sloped and a flat vineyard) were examined in two years in order to describe the changes in the concentration and composition of berry skin/wine anthocyanins of the Kékfrankos variety at different harvest dates and to examine a possible relationship between the extractability of anthocyanin glucosides and terroir/vintage characteristics.

The importance of the physicochemical composition of wine on the score awarded in an official contest

The quality of wine is difficult to define. This is most certainly accredited to everyone´s different perception of quality. Some of the indicators of high-quality wines are color complexity and balance. Color is one of the most crucial attributes of quality, not only for the obvious implications for their perception but also because they are indicators of other aspects related to its aroma and taste.