Autor segons l'article: Mas, A.; Martí-Raga, M.; Peltier, E.; Beltran, G.; Marullo, P.
Departament: Bioquímica i Biotecnologia
Autor/s de la URV: MAS BARON, ALBERTO; Martí-Raga, M.; Peltier, E.; BELTRAN CASELLAS, GEMMA; Marullo, P.
Paraules clau: Heterosis Saccharomyces cerevisiae
Resum: 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.
Grup de recerca: Biotecnologia Enològica
Àrees temàtiques: Bioquímica i biotecnologia Bioquímica y tecnología Biochemistry and technology
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 2160-1836
Identificador de l'autor: n/a; n/a; n/a; 0000-0002-7071-205X; n/a
Data d'alta del registre: 2017-03-06
Pàgina final: 412
Volum de revista: 7
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2017
Pàgina inicial: 399
Tipus de publicació: Article Artículo Article
Repositori URV