Autor según el artículo: Mas, A.; Martí-Raga, M.; Peltier, E.; Beltran, G.; Marullo, P.
Departamento: Bioquímica i Biotecnologia
Autor/es de la URV: MAS BARON, ALBERTO; Martí-Raga, M.; Peltier, E.; BELTRAN CASELLAS, GEMMA; Marullo, P.
Palabras clave: Heterosis Saccharomyces cerevisiae
Resumen: 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.
Grupo de investigación: Biotecnologia Enològica
Áreas temáticas: Bioquímica i biotecnologia Bioquímica y tecnología Biochemistry and technology
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 2160-1836
Identificador del autor: n/a; n/a; n/a; 0000-0002-7071-205X; n/a
Fecha de alta del registro: 2017-03-06
Página final: 412
Volumen de revista: 7
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2017
Página inicial: 399
Tipo de publicación: Article Artículo Article
Repositori URV