terclim by ICS banner
IVES 9 IVES Conference Series 9 Novel approaches and promising perspectives for enhancing grapevine editing and regeneration

Novel approaches and promising perspectives for enhancing grapevine editing and regeneration

Abstract

Grapevine (Vitis vinifera L.) is a challenging plant species to transform and regenerate due to its complex genome and biological characteristics. This limits the development of cisgenic and gene-edited varieties. One hurdle is selecting the best starting tissue for the transformation process, much like isolating suitable tissue for protoplasts. One promising method involves delivering CRISPR/Cas components to protoplasts isolated from embryogenic calli, which are then induced to regenerate. However, this process is inefficient, time-consuming, and only applicable to a few genotypes. To enhance grapevine regeneration efficiency, the expression of developmental and plant growth regulators shows promise in escaping the recalcitrance encountered in traditional tissue culture methods. A strategy based on the Bean yellow dwarf virus (BeYDV) allows for the temporary expression of regulators while minimizing the risk of obtaining transgenic plants. Additionally, the high copy number replication of BeYDV allows for high CRISPR/CAS levels, thereby improving editing. The goal of this study is to evaluate the effects of individual or combined developmental regulators’ expression on grapevine embryogenic tissues. We conducted preliminary assays using BeYDV-derived vectors for luciferase reporter gene expression to optimize delivery efficiencies. Assays were performed on ‘Chardonnay’ calli and protoplasts using both agrobacterium-mediated transformation and protoplast transfection approaches. The present study seeks to enhance the transformation protocols and regeneration processes, with the ultimate aim of realizing the full potential of editing technologies in grapevine.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Flavia Angela Maria Maggiolini1*, Margherita D’Amico1, Lucia Rosaria Forleo1, Annalisa Prencipe2, Bruna Suriano1, Mario Ventura2, Maria Francesca Cardone1, Riccardo Velasco1, Carlo Bergamini1

1 Council for Agricultural Research and Economics – Research Center Viticulture and Enology (CREA-VE), Via Casamassima 148-70010 Turi (Ba), Italy
2 Department of Biosciences, Biotechnology and Environment, University of Bari “Aldo Moro”, 70125 Bari, Italy.

Contact the author*

Keywords

Vitis vinifera, genome editing, protoplasts, developmental regulators, BeYDV

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

A methyl salicylate glycoside mapping of monovarietal Italian white wines.

Among the main plant secondary metabolites, glycosides have a key-role in wine chemistry. Glycosides are non-volatile complex composed of a non-sugar component (aglycone) bound to one or more carbohydrates.

Read More

Exploring the influence of terroir on the sensorial and aroma profiles of wines – An application to red wines from AOC Corbières

The aromatic profile of a wine is the result of volatile molecules present in grapes (varietal or primary aromas) and those produced during the winemaking process of fermentation (secondary aromas) and during wine aging (tertiary aromas).

Read More

High-resolution aerial thermography for water stress estimation in grapevines

Aerial thermography has emerged as a promising tool for water stress detection in grapevines, but there are still challenges associated with this technology, particularly concerning the methodology employed to extract reliable canopy temperature values. This consideration is relevant especially in vertically trained vineyards, due to the presence of multiple surfaces which are captured by drone thermal cameras with high-resolution. To test the technology and the data analysis required, a field study was conducted during the 2022-2023 season in a model vineyard with multiple scions-rootstock combinations trained on a vertical shoot-positioning (VSP) system. Additionally, three irrigation regimes were implemented to introduce variability in water stress levels.

Read More

First application of an original methodology created to overcome conflicts between stakeholders in an important wine-growing territory: methodology, results, and perspectives in the application of sustainability EME4.1C

Considering the previous research and activities, also, on Sustainability EME4.1C which, as widely known, considers in a harmonious chain all the factors material, immaterial, moral and spiritual related to all aspects environmental, economic, social, existential, relational, ethical, technical and “MetaEthic” indexed 4.1C

Read More

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Read More