IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Grape genetic research in the age of pangenomes

Grape genetic research in the age of pangenomes

Abstract

Genetic approaches towards better Grape & Wine Quality
Combined improvements in sequencing technologies and assembly algorithms have led to staggering improvements in the quality of grape genome assemblies. Completely phased haplotypes have been instrumental to advances in grape research due to high heterozygosity, structural variation, and gene content variability across homologous chromosomes.  Phased assemblies of grape genomes have revealed genomic complexities that were inaccessible in previous haploid representations, such as haplotype-specific structural variation events, trait-associated alleles, and allele-specific gene expression and methylation. The availability of wild and cultivated grape diploid genome references containing the genes and alleles underlying traits of interest has been instrumental in dissecting the genetic basis of disease resistance, flower sex determination, aroma, and flavor. User-friendly web platforms, like www.grapegenomics.com, have played a critical role in rapidly and broadly sharing genomic data and tools, and foster multidisciplinary collaborations and progress in grape research. 

DOI:

Publication date: June 23, 2022

Issue: IVAS 2022

Type: Article

Authors

Dario Cantu1*

1Department of Viticulture & Enology

Contact the author

Keywords

assembly of diploid genome references, comparative genomics, genomic structural variability, genetic diversity, public resources 

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Vineyard soils and landscapes of the Burgundy Côte (France): a historical construction worth preserving

The construction of vineyard landscapes along the Burgundy Côte is the result of geological processes and of human labour. Substratum diversity in this vineyard is the result of a very long history explained by the diversity of Jurassic sedimentary facies and Tertiary tectonic activity. The nature and thickness of Quaternary deposits (Weichselian scree debris and alluvial fans) reflect sediment dynamics concurrent with the last glaciation.

Read More

AOC valorization of terroir nuances at plot scale in Burgundy

In the highly competitive global wine market, Burgundy has a long-established reputation to maintain. The vine and wine sector in Burgundy is based on a five-level ranking of AOC (Appellation d’Origine Contrôlée) wines and of the plots where the grapes are grown.

Read More

The revision of the delimitation of the AOC “Champagne”

The Champagne vine-growing region has played a pioneering role in the delimitation of appellations of origin (AOC). The implementation of the Act of July, 22nd 1927 has led to drawing up lists of vine plots based on the criterion of vine cultivation antecedence.

Read More

Building of a hierarchy of wines based on terroirs: an initiative from the producers of Muscadet

The Muscadet area is situated in the southeast of Nantes, close to the Atlantic coast. It constitutes the western extension
of the French vineyard “Loire Valley”. The Muscadet is renowned and often spontaneously linked to a white wine.
However it remains misconceived as an ordinary wine, lacking authenticity.

Read More

How the physical components of the terroir can differently intervene in French wines DPO definitions.Example of Côte de Nuits in Burgundy

European regulations describe what elements must be given in the specifications of DPO determination ; mainly production conditions, links between quality and products characteristics and the physical traits of the production area. These elements are given in the “link to terroir” paragraph relating natural and human factors, detailed product characteristics linked to the geographical area and at last interactions between product originality and the geographical area.

Read More