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…

Environmental protection by means of (“Great”) vitiviniculture zonation

In the paper is discussed the first example of environmental protection, agreed in a wide term sense, by means of vitiviniculture zonations performed in Istria (Croatia) in the area of Butoniga lake

Innovative approach to energy efficiency benchmarking in the wine sector

The wine industry, a key sector for the European Union’s economy, exhibits significant energy consumption, amounting to approximately 1,750 million kWh annually within this geographic context, with major contributions from Italy, France, Spain, and Portugal (Fuentes Pila et al., 2015).

From the “climats de Bourgogne” to the terroir in bottles

From a chemical composition point of view, wine is the result of complex interplays between environmental, genetic and human factors. The notion of terroir in viticulture involves the vine and its environment, including phenology, geography, geology, pedology and local climate of a vineyard, along with human inputs.

The influence of RNAi-expressing rootstocks in controlling grey mold on grapevine cultivars

Worldwide, with an average of 6.7 million cultivated hectares, of which exclusively 51% in Europe (faostat, 2021), the production of table and wine grapes is a leading sector, with continued growth in Europe in the area devoted to vine cultivation. during the growing season, most of the plant organs can be susceptible to several fungal and oomycete diseases, leading to important economic losses and causing detrimental effects on fruit quality. the increasingly scarce availability of fungicidal products, often also related to their relative impact on the environment, coupled with the emergence of resistance in the pathogen to these products, make defence increasingly challenging.

Ten grapevine rootstocks: effects on vegetative development, production and grape quality of cv. Mencia in the d.o. Bierzo (Spain)

Grapevine rootstock is basic to achieve good adaptation of the vine to ground and environment.