Genome-wide gene expression of a natural hybrid between Saccharomyces cerevisiae and S. kudriavzevii under enological conditions

Authors
Combina, Mariana; Perez Torrado, Roberto; Tronchoni, Jordi; Belloch, Carmela; Querol, Amparo
Publication Year
2012
Language
English
Format
article
Status
Published version
Description
The species Saccharomyces cerevisiae plays a predominant role in the wine making process. However, other species have been associated with must fermentation, such as Saccharomyces uvarum (Saccharomyces bayanus var. uvarum) or Saccharomyces paradoxus. Recently, yeast hybrids of different Saccharomyces species have also been reported as responsible for wine production. Yeast hybrids between the species S. cerevisiae × S. kudriavzevii isolated in wine fermentations show enhanced performance in low temperature enological conditions and increased production of interesting aroma compounds. In this work, we have studied the transcriptomic response in enological conditions of a S. cerevisiae × S. kudriavzevii hybrid strain and compared it with the reference species of S. cerevisiae and S. kudriavzevii. The results show that the hybrid strain presents an up-regulation of genes belonging to functional group translation and amino-acid metabolism. Moreover, key genes related to cold stress and production of glycerol and aroma compounds were also up-regulated. While some genes inherited regulation patterns from one of the parents, most of the up-regulated genes presented a new gene expression pattern, probably generated during the hybridization and adaptation process.
EEA Mendoza
Fil: Combina, Mariana. INTA. Estación Experimental Agropecuaria Mendoza; Argentina. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agroquímica y Tecnología de los Alimentos; España.
Fil: Perez Torrado, Roberto. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agroquímica y Tecnología de los Alimentos; España.
Fil: Tronchoni, Jordi. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agroquímica y Tecnología de los Alimentos; España.
Fil: Belloch, Carmela. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agroquímica y Tecnología de los Alimentos; España
Fil: Querol, Amparo. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agroquímica y Tecnología de los Alimentos; España
Source
International Journal of Food Microbiology 157 (3) : 340-345 (July 2012)
Subject
Saccharomyces Cerevisiae
Expresión Génica
Levadura
Enología
Vinos
Fermentación
Gene Expression
Yeasts
Oenology
Wines
Fermentation
Saccharomyces kudriavzevii
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/4286