Author, as appears in the article.: Marti-Raga, Maria; Peltier, Emilien; Mas, Albert; Beltran, Gemma; Marullo, Philippe;
Department: Bioquímica i Biotecnologia
URV's Author/s: Beltran Casellas, Gemma / Mas Baron, Alberto
Keywords: Vma13 Pma1 Pdr1 Msb2 Heterosis vma13 pma1 pdr1 msb2
Abstract: Hybridization is known to improve complex traits due to heterosis and phenotypic robustness. However, these phenomena have been rarely explained at the molecular level. Here, the genetic determinism of Saccharomyces cerevisiae fermentation performance was investigated using a QTL mapping approach on an F1-progeny population. Three main QTL were detected, with positive alleles coming from both parental strains. The heterosis effect found in the hybrid was partially explained by three loci showing pseudooverdominance and dominance effects. The molecular dissection of those QTL revealed that the adaptation to second fermentation is related to pH, lipid, or osmotic regulation. Our results suggest that the stressful conditions of second fermentation have driven the selection of rare genetic variants adapted to maintain yeast cell homeostasis and, in particular, to low pH conditions.
Thematic Areas: Química Molecular biology Medicine (miscellaneous) Medicina i Interdisciplinar Genetics (clinical) Genetics & heredity Genetics Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Biotecnología Biodiversidade
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: gemma.beltran@urv.cat albert.mas@urv.cat
Author identifier: 0000-0002-7071-205X 0000-0002-0763-1679
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: G3-Genes Genomes Genetics. 7 (2): 399-412
APA: Marti-Raga, Maria; Peltier, Emilien; Mas, Albert; Beltran, Gemma; Marullo, Philippe; (2017). Genetic Causes of Phenotypic Adaptation to the Second Fermentation of Sparkling Wines in Saccharomyces cerevisiae. G3-Genes Genomes Genetics, 7(2), 399-412. DOI: 10.1534/g3.116.037283
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications
Repositori URV