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…

Beneficial effects of moderate consumption of Teran red wine on blood lipid profile: a preliminary study on healthy volunteers

Moderate wine consumption may impact several human health aspects, among others as a result of phenolic compounds present in wine and their bioactive properties. The aim of this study was to determine whether six weeks of daily, moderate Teran red wine consumption affects the levels of total cholesterol, high-density lipoprotein cholesterol – HDL, low-density lipoprotein cholesterol – LDL, and triglycerides. Sixty-eight healthy adults (46 women and 22 men) aged 25-64 years voluntarily agreed to participate in the study.

Read More

Selecting green cover species in the under-trellis zone of Lower Austrian vineyards

The under-trellis zone of vineyards is a sensitive area through which vines cover a significant portion of their nutrient and water needs. Mechanical and chemical methods are applied to suppress competing and tall-growing weeds to ensure optimal vine growth conditions. In addition to higher operating costs and depending on the soil conditions, these practices might lead to a long-term reduction in soil fertility and biodiversity. The presented study aims to analyse the suitability and interspecies competition of a selected green cover mixture of five local herbaceous species as potential green cover mixture in the under-trellis area of Lower Austrian vineyards.

Read More

Characterization of the adaptive mechanisms of grapevine rootstocks to iron deficiency induced by lime stress

Iron (Fe) deficiency is one of the important nutritional disorders for grapevine growing in alkaline and calcareous soils. Although Fe is an abundant element in soil, several factors limiting its availability, particularly the high levels of calcium carbonate or bicarbonate in soil, leading to a remarkable reduction in grapevine growth and productivity. The use of Fe chlorosis-tolerant rootstocks seems to be a cost-effective and efficient way to maintain Fe balance. Morphological and physiological changes occur in plants to cope with low Fe availability, including enhancement of ferric chelate reductase activity and altering root system by increasing lateral roots and root hairs.

Read More

Use of a recombinant protein (Harpin αβ) as a tool to improve phenolic composition in wines

Climate change is modifying environmental conditions in all wine-growing areas of the
world.

Read More

The use of microwaves during the maceration of Cabernet Sauvignon wines for improving their chromatic characteristics

The use of new technologies such as microwaves (MW) arose in recent years as an efficient alternative to reduce the use of sulfur dioxide (SO2) and as a method for improving wines in terms of color and aroma [1, 2]. MW (non-ionizing electromagnetic waves with frequencies between 300 MHz and 300 GHz) have been widely applied in the food industry in order to reduce processing time and favor food preservation.

Read More