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.

Download the abstract

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…

Application of ultrasonic and refractometric measurements in enological samples and related model solutions

AIM: The refractive index is a basic optical property of materials and a key tool for the determination of major components in musts, such as sugars

Read More

Revealing the aroma profile of Greek wines from indigenous grape cultivars

The indigenous Greek grape varieties Assyrtiko, Malagousia, Moschofilero and Roditis are used to produce white wines that are attracting the interest of wine producers and consumers due to their aromatic characteristics [1]. In addition, the Agiorgitiko and Xinomavro varieties are Greece’s most prominent red grape varieties.

Read More

Effects of long-term drought stress on soil microbial communities from a Syrah cultivar vineyard

Changes in the rainfall and temperature patterns affect the increase of drought periods becoming one of the major constraints to assure agricultural and crop resilience in the Mediterranean regions. Beside the adaptation of agricultural practices, also the microbial compartment associated to plants should be considered in the crop management. It is known that the microbial community change according to several factors such as soil composition, agricultural management system, plant variety and rootstock.

Read More

Physico-chemical properties of vine pruning residues with potential as enological additive

Grapes are one of the world’s primary fruit crops, and pruning activities generate high amounts of annual wood wastes [1]. These pruning shoots contain valuable phenolic compounds and could have numerous potential applications [1,2]. Consequently, the aim of this work was to evaluate the physico-chemical properties of vine pruning residues with potential as enological additives. For this purpose, grapevine shoots from 12 varieties grown in Chile were collected during the winter of 2021.

Read More

Under trellis cover crop induces grapevine tolerance to bunch rot

Botrytis bunch rot occurrence is one of the most important limitations for the wine industry in humid environments. A positive correlation between grapevine growth and susceptibility to fungal pathogens has been found. In theory the effect of grapevine vegetative growth on bunch rot expression results from direct effects (cluster architecture, nitrogen status among others) and indirect ones (via microclimate). However, a reduction in bunch rot incidence can be achieved in some circumstances without major vine growth reduction. The present study was aimed to test the general hypothesis that bunch rot susceptibility is affected by vine vigor, but other factors associated with grapevine vegetative expression could be even more relevant.

Read More