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.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Laura Costantini1*§, Paula Moreno-Sanz2§, 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…

La zonazione della D.O.C. Bolgheri (Castagneto C.): aspetti metodologici ed applicativi

The results of the first step of the zoning study carried out in Bolghery appellation area (Castagneto Carducci, Tuscany) in the 1993-1995 period have been recently published. Quality factors of Bolgheri appellation and different “terroirs ” were identified.

Read More

Overhead spray water treatment as a mitigation strategy for reducing vine stress and preserving grape quality during heatwaves

Changes in climate have been influencing the quality of wine grapes worldwide. The impact of extreme climate events over short periods is increasingly recognized as a serious risk to grape quality and yield quantity. In this study the mitigation effects of a pulsed water spray on vine canopy during heatwave events has been evaluated for maintaining vine condition during the growing season and grape quality. Vines of three varieties (Malbec, Bonarda, and Syrah) under drip irrigation in the UNCuyo experimental vineyard were treated with an overhead pulsed water spray.

Read More

Optimisation de la fertilisation du Cot sur le Causse de l’Appellation d’Origine Contrôlée Cahors

The Appellation d’Origine Contrôlée area of ​​Cahors (Lot) covers an area of ​​21,700 ha, spread over 45 municipalities, of which only 4,300 are planted with vines. The main grape variety of this AOC is the Cot noir which represents 70% of the grape varieties, thus giving their typicality to the wines of this region; but despite this importance, to our knowledge, its physiology has remained relatively unstudied.

Read More

Under-vine cover crops in viticulture: impact of different weed management practices on weed suppression, yield and quality of grapevine cultivar Riesling

The regulation of weeds, particularly in the under-vine area of grapevines, is essential for the maintenance of grape yield and quality.

Read More

Implications of the respect of pruning principles on grapevine development

After some decades sunk into oblivion, pruning has recently recovered the focus of grape growers and viticulturists worldwide. Attention is now being paid to the respect the sap flow continuity and to pruning wounds, as they may affect the general performance and longevity of the plant. The longevity and profitability are strongly affected by the increasing incidence of grapevine wood diseases (GWD), intensified by the omission of good pruning practices and leading to an increasingly aggressive pruning. The purpose of this study is to provide an objective evaluation of the short- and mid-term implications of different pruning practices that differ in the degree of observation several of pruning principles.

Read More