terclim by ICS banner
IVES 9 IVES Conference Series 9 Developmental and genetic mechanisms underlying seedlessness in grapevine somatic variants

Developmental and genetic mechanisms underlying seedlessness in grapevine somatic variants

Abstract

Seedless table grapes are greatly appreciated for fresh and dry consumption. There is also some interest in seedless winegrapes, because the combination of lower fruit set, smaller berries with higher skin/pulp ratio and looser bunches with the absence of seeds in crushed berries, a possible source of astringent tannins, might also have favorable effects on wine quality. The gene VviAGL11 has been shown to play a central role in stenospermocarpy in Sultanina, but the molecular bases of other sources of stenospermocarpy as well as of parthenocarpy have not been clarified yet. To help fill this gap, a genetic and phenotypic characterization of seedless somatic variants from other cultivars has been undertaken, with special emphasis on a parthenocarpic Sangiovese mutant known as Corinto Nero.
In vitro pollen germination tests, in vivo pollination trials, histological observation of female gametophyte development, and genetic analysis of seedlings have shown that Corinto Nero is incapable of forming seeds probably due to meiotic anomalies.
In addition to a pairwise transcriptomic comparison between the mutant and the seeded wild-type, we present here a comparative genomic analysis between Corinto Nero and 10 seeded clones of Sangiovese based on short-read resequencing to identify sequence and structural variation that may reveal candidate genes for parthenocarpy in Corinto Nero.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Laura Costantini1*§, Paula Moreno-Sanz, Anna Nebish3,4, Silvia Lorenzi1, Elvira d’Amato5, Mara Miculan6,8, Gabriele Magris6,7, Gabriele Di Gaspero6, Ivana Gribaudo9, Anna Schneider9, Maria Stella Grando2

1 Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige (Trento), Italy
2 Center Agriculture Food Environment (C3A), University of Trento, San Michele all’Adige (Trento), Italy
3 Departamento de Viticultura, Instituto de Ciencias de la Vid y del Vino (CSIC, UR, Gobierno de la Rioja), Logroño, Spain
4 Department of Genetics and Cytology, Yerevan State University, Yerevan, Armenia
5 Department of Physics, University of Trento, Povo (Trento), Italy
6 Istituto di Genomica Applicata, Udine, Italy
7 Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine (Udine), Italy
8 Center of Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah, Saudi Arabia
9 Institute for Sustainable Plant Protection – Research Council of Italy, Grugliasco (Torino), Italy

§ Equally contributed

Contact the author*

Keywords

somatic variation, clones, seedlessness, reproductive development, genomic structural variation

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Free amino acid composition of must from 7 Vitis vinifera L. cv. in Latium (Italy)

Free amino acid concentrations in must of 7 Vitis vinifera cultivars (Cabernet Franc, Syrah, Merlot, Montepulciano, Sangiovese, Cesanese d’Affile, Carmenere) grown in the Latium region (Italy) were monitored from 2003 to 2005. The cultivars were located in a homogeneous soil and climatic zone and with the same training system (Cordon Spur).

The vineyard of the future: producing more with less  

similar to other agricultural producers, grape growers face increasing pressure to improve productivity and production efficiency while reducing their environmental impact. Threats due to extreme climate events, as well as the uncertainty of available water and labor, provide significant challenges to the future of grape production. This presentation will provide an integrated overview of the tools and technologies being developed to address these issues and to help growers manage vineyards in the future, including vineyard design, remote and proximal sensing, automation, data management and decision support systems, and germplsm improvement. The potential impact of these advancements on vineyard productivity, fruit quality, and sustainability will be discussed.

How to transform the odor of a white wine into a red wine? Color it red!

Does a white wine smell like red wine if you color it with red food coloring? A study by Morrot, Brochet, and Dubourdieu (2001, Brain and Language) suggests so. Subjects perceived red wine odors when tasting white wine that had been colored red. The perceived odor profile of the colored white wine became similar to that of a red wine. However, the forced-choice procedure used by Morrot et al. has some methodological shortcomings. Here, we used an alternative method (a rating procedure) to evaluate the presented wines.

Biovi: a research program for reducing chemical input in vine and wine

Decrease of chemical inputs during vine management and winemaking is of great importance from a political and societal point of view. In our ongoing project we propose alternative tools to chemicals in the vineyard and the cellar. We have compared a conventional vineyard protection strategy to an alternative strategy using copper and biocontrol products (Biocontrol) against downy

Anthocyanin content and composition of Merlot grapes under temperature and late pruning conditions 

One of the main aspects of Climate Change is the increase of temperatures during summer and grape maturity period. Physiological processes are influenced by these high temperatures and result in grapes with higher sugar concentration, less acidity and less anthocyanin content among other quality changes. One strategy to deal with the climate change effects is the implementation of late winter pruning to alter the effect of high temperatures during key periods by delays in maturity time.