VION, Charlotte; PELTIER, Emilien; BERNARD, Margaux; MURO, Maitena; MARULLO, Philippe

doi:10.3390/jof7040304

VION, Charlotte
Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

PELTIER, Emilien

Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

BERNARD, Margaux
Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

Langue

Article de revue

Ce document a été publié dans

Journal of Fungi. 2021, vol. 7, n° 4

Résumé en anglais

Natural Saccharomyces cerevisiae yeast strains exhibit very large genotypic and phenotypic diversity. Breeding programs that take advantage of this characteristic are widely used for selecting starters for wine industry, especially in the recent years when winemakers need to adapt their production to climate change. The aim of this work was to evaluate a marker assisted selection (MAS) program to improve malic acid consumption capacity of Saccharomyces cerevisiae in grape juice. Optimal individuals of two unrelated F1-hybrids were crossed to get a new genetic background carrying many « malic consumer » loci. Then, eleven quantitative trait loci (QTLs) already identified were used for implementing the MAS breeding program. By this method, extreme individuals able to consume more than 70% of malic acid in grape juice were selected. These individuals were tested in different enological matrixes and compared to their original parental strains. They greatly reduced the malic acid content at the end of alcoholic fermentation, they appeared to be robust to the environment, and they accelerated the ongoing of malolactic fermentations by Oenococcus oeni. This study illustrates how MAS can be efficiently used for selecting industrial Saccharomyces cerevisiae strains with outlier properties for winemaking.< Réduire

Mots clés en anglais

Wine yeast

Malic acid

Breeding

Malolactic fermentation

Marker assisted selection

URI

https://oskar-bordeaux.fr/handle/20.500.12278/124218

DOI

http://dx.doi.org/10.3390/jof7040304

Lien vers les données de la recherche

https://www.mdpi.com/article/10.3390/jof7040304/s1

Project ANR

Centre français de phénomique végétale - ANR-11-INBS-0012
Plateforme d'Innovation " Forêt-Bois-Fibre-Biomasse du Futur " - ANR-10-EQPX-0016

Unités de recherche

Oenologie - UMR 1366

Voir/Ouvrir

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Marker assisted selection of malic-consuming saccharomyces cerevisiae strains for winemaking. Efficiency and limits of a qtl’s driven breeding program