terclim by ICS banner
IVES 9 IVES Conference Series 9 Comparative QTL mapping of phenology traits in three cross populations of grapevine

Comparative QTL mapping of phenology traits in three cross populations of grapevine

Abstract

Long-term studies on grapevine phenology have clearly demonstrated that global warming is affecting phenological events, leading to an anticipation in their timing, and negatively impacting grape yield and berry quality. Therefore, dissecting the genetic determinants involved in the plant regulation of the phenological stages of budburst, flowering, veraison and ripening can improve our knowledge of the underlying mechanisms and support plant breeding programs and the advancement of vineyard management strategies.
We report here the results of a QTL mapping experiment conducted on three segregating populations obtained from the crossing of ‘Cabernet Sauvignon’ and ‘Corvina’, ‘Corvina’ and the hybrid ‘Solaris’ and ‘Rhine Riesling’ and ‘Cabernet Sauvignon’. High-density parental and integrated linkage maps were developed by using genotypic information, obtained through hybridization to the Illumina Vitis18KSNP chip, of DNA from 144, 129 and 139 individuals respectively. Each progeny was then evaluated in the field over four seasons. The phenological traits budburst, flowering, veraison as well as technological ripening were assessed, and correlations across years and traits were estimated. A summary of all mapped QTLs in the different years in each population is provided and QTLs reproducible across years and populations as well as potential underlying candidates are discussed.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Martina Marini1, Laura Costantini2, Silvia Pettenuzzo2,3,4, Silvia Lorenzi2 ,Tahir Mujtaba1, Riccardo Mora1, Ron Shmuleviz1,Giovanni Battista Tornielli1,5, Giada Bolognesi1, Maria Stella Grando3, Diana Bellin1

1 Department of Biotechnology, University of Verona, Italy
2Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Italy
3Center Agriculture Food and Environment (C3A), University of Trento, Italy
4Department of Chemical Sciences, University of Padova, Italy
5Current address: Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Italy

Contact the author*

Keywords

climate change, phenology, cross populations, QTL mapping, candidate genes

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Appliance of climate projections for climate change study in Serbian vineyard regions

Climate projections considered here are for two periods in the future throughout two IPCC scenarios: 2001 – 2030 (A1B) and 2071 – 2100 (A2) obtained using Coupled Regional Climate

REVINE project : regenerative agricultural approaches to improve ecosystem services in Mediterranean vineyards

REVINE is a 3 year European projected funded by PRIMA programme which proposes the adoption of regenerative agriculture practices with an innovative and original perspective, in order to improve the resilience of vineyards to climate change in the Mediterranean area.
Regenerative agriculture ameliorates soil structure and microbial biodiversity that, in turn, leads to crop resilience against biotic and abiotic stressful factors. Moreover, enrichment of beneficial microbes in the rhizosphere, such as PGPR and PGPF, are known to trigger the plant immunity inducing the priming state.

Enzyme treatments during pre-fermentative maceration of white winegrapes: effect on volatile organic compounds and chromatic traits

Volatile organic compounds (VOCs) are very important for the characterisation and quality of the final white wine. An oenological practice to increase the extraction of aroma compounds is the cold pre-fermentative maceration [1,2], although it may also release phenolic compounds that confer darker chromatic traits to white wines, not appreciated by consumers. This practice could be improved by the use of enzymes in order to facilitate the release of the odorous molecules. In this study, the effect of different enzyme treatments during skin contact on the chromatic characteristics and volatile composition of white musts from four winegrape varieties was evaluated.

How sensory quality of wines can be accessed as a trait in MAS grape vine breeding

In the context of the global crises of global warming, biodiversity and pollution, current agricultural practices need to be reconsidered.

Effect of ozone application for low-input postharvest dehydration of wine grapes

The postharvest dehydration of grapes is a traditional practice to obtain wines with unique traits (e.g., sweet, dry/reinforced).