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Molecular Analysis of the Genes Involved in Aroma Synthesis in the Species S. cerevisiae, S. kudriavzevii and S. bayanus var. uvarum in Winemaking

ABSTRACT: Molecular Analysis of the Genes Involved in Aroma Synthesis in the Species S. cerevisiae, S. kudriavzevii and S. bayanus var. uvarum in Winemaking

OTHER RELATED OMICS DATASETS IN: GSE30778

PROVIDER: PRJNA144313 | ENA |

REPOSITORIES: ENA

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Molecular Analysis of the Genes Involved in Aroma Synthesis in the Species S. cerevisiae, S. kudriavzevii and S. bayanus var. uvarum in Winemaking

Project description:This research work investigates the hybridization of the genes of Saccharomyces bayanus var. uvarum CECT 12600 and S. kudriavzevii IFO1802 employing S. cerevisiae microarrays.

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Molecular Analysis of the Genes Involved in Aroma Synthesis in the Species S. cerevisiae, S. kudriavzevii and S. bayanus var. uvarum in Winemaking

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Molecular analysis of the genes involved in aroma synthesis in the species S. cerevisiae, S. kudriavzevii and S. bayanus var. uvarum in winemaking conditions.

Project description:The Saccharomyces genus is the main yeast involved in wine fermentations to play a crucial role in the production and release of aromatic compounds. Despite the several studies done into the genome-wide expression analysis using DNA microarray technology in wine S. cerevisiae strains, this is the first to investigate other species of the Saccharomyces genus. This research work investigates the expression of the genes involved in flavor compound production in three different Saccharomyces species (S. cerevisiae, S. bayanus var. uvarum and S. kudriavzevii) under low (12°C) and moderate fermentation temperatures (28°C). The global genes analysis showed that 30% of genes appeared to be differently expressed in the three cryophilic strains if compared to the reference strain (mesophilic S. cerevisiae), suggesting a very close cold adaptation response. Remarkable differences in the gene expression level were observed when comparing the three species, S. cerevisiae, S. bayanus var. uvarum and S. kudriavzevii, which will result in different aroma profiles. Knowledge of these differences in the transcriptome can be a tool to help modulate aroma to create wines with the desired aromatic traits.

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