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…

Application of non-Saccharomyces yeasts in peculiar winemaking, sparkling and sweet wines: biological acidification, prise de mousse, aroma profile. Two cases of study

In this video recording of the IVES science meeting 2025, Raffaele Guzzon (Fondazione Edmund Mach, Centro di Trasferimento Tecnologico, San Michele all’Adige (TN), Italy) speaks about the application of non-Saccharomyces yeasts in peculiar winemaking, sparkling and sweet wines (biological acidification, prise de mousse, aroma profile). This presentation is based on an original article accessible for free on OENO One.

Read More

Study of varietal wines from the qualified origin denomination Rioja (Spain): analysis of wine colour, polysaccharides, polyphenols and biogenic amines and amino acides 

The cultivar with a greater oenological potential was ‘Monastel’, which showed overall better values than ‘Tempranillo’ in colour intensity, total polyphenol index, wine colour, total anthocyanins, resveratrol and gallic acid.

Read More

UNEXPECTED PRODUCTION OF DMS POTENTIAL DURING ALCOOLIC FERMENTATION FROM MODEL CHAMPAGNE-LIKE MUSTS

The overall quality of aged wines is in part due to the development of complex aromas over a long period (1.) The apparition of this aromatic complexity depends on multiple chemical reactions that include the liberation of odorous compounds from non-odorous precursors. One example of this phenomenon is found in dimethyl sulphide (DMS) which, with its characteristic odor truffle, is a known contributor to the bouquet of premium aged wine bouquet (1). DMS supposedly accumulates during the ten first years of ageing thanks to the hydrolysis of its precursor dimethylsulfoniopropionate (DMSp.) DMSp is a possible secondary by-product from the degradation of S-methylmethionine (SMM), an amino acid iden- tified in grapes (2), which can be metabolized by yeast during alcoholic fermentation.

Read More

How much does the soil, climate and viticultural practices contribute to the variability of the terroir expression?

When considering the application of a systemic approach to assess the intrinsic complexity of agricultural production, the following question immediately arises

Read More

Characterization of bunch compactness and identification of associated genes in a diverse collection of cultivars of Vitis vinifera L.

Compactness is a complex trait of V. vinifera L. and is defined ultimately by the portion of free space within the bunch which is not occupied by the berries. A high degree of compactness results in poor ventilation and consequently a higher susceptibility to fungal diseases, diminishing the quality of the fruit. The easiness to conceptualize the trait and its importance arguably contrasts with the difficulty to measure and quantify it. However, recent technical advancements have allowed to study this attribute more accurately over the last decade. Our main objective was to explore the underlying genetics determining bunch compactness by applying updated phenotyping methods in a collection of V. vinifera L. cultivars with a wide genetic diversity.

Read More