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…

A comparative analysis of regions worldwide with Pinot noir

This study examines the growing season climates of selected wine regions worldwide that have significant areas under Pinot noir.

Read More

Study of Spanish wine sensory analysis data over a 3-year period

This study presents an investigation based on sensory analysis data of Spanish wines with geographical indications collected over a three-year period. Sensory analysis plays a crucial role in assessing the quality, characteristics, and perception of wines. The trained tasting panel at Dolmar Laboratory, accredited for objective sensory evaluation of wines since 2016, has been tasting over 5000 wines. However, it is since 2021, when a computer application for tastings was developed, that the digitalization of data allows for detailed statistical analysis of the results.

Read More

A DNA-free editing approach to help viticulture sustainability: dual editing of DMR6-1 and DMR6-2 enhances resistance to downy mildew 

The sustainability of viticulture hinges on maintaining quality and yield while reducing pesticide use. Promising strides in this direction involve the development of clones with enhanced disease tolerance, particularly through the knockout of plant susceptibility genes. Knocking out of Downy Mildew Resistant 6 (DMR6) led to increased levels of endogenous salicylic acid (SA), a regulator of immunity, resulting in enhanced tolerance to Downy Mildew (DM) and other diseases in various crops.

Read More

Non-invasive grapevine inflorescence detection using YOLOv11 under field conditions

Accurate and early yield estimation in vineyards is essential for the effective management of resources and informed decision-making in viticulture.

Read More

Volatile Organic Compound markers of Botrytis cinerea infection in artificially inoculated intact grape berries

The addition of partially dehydrated grapes to enrich must composition for producing complex dry/sweet wines represents a traditional practice in several regions of the world. However, the environmental conditions of dehydration chambers may facilitate the infection of Botrytis cinerea Pers. by promoting disease and provoking large grape losses. B. cinerea attack can induce alterations in the profile of volatile organic compounds (VOCs), which could be detected by sensors specifically trained to detect infection/disease-related compounds. These sensors could facilitate the early detection of the infection, consequently allowing to adjust some dehydration parameters.

Read More