Document Detail


Characterization of natural hybrids of Saccharomyces cerevisiae and Saccharomyces bayanus var. uvarum.
MedLine Citation:
PMID:  17302940     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Nine yeast strains were isolated from spontaneous fermentations in the Alsace area of France, during the 1997, 1998 and 1999 grape harvests. Strains were characterized by pulsed-field gel electrophoresis, PCR-restriction fragment length polymorphism (RFLP) of the MET2 gene, delta-PCR, and microsatellite patterns. Karyotypes and MET2 fragments of the nine strains corresponded to mixed chromosomal bands and restriction patterns for both Saccharomyces cerevisiae and Saccharomyces bayanus var. uvarum. They also responded positively to amplification with microsatellite primers specific to both species and were demonstrated to be diploid. However, meiosis led to absolute nonviability of their spores on complete medium. All the results demonstrated that the nine yeast strains isolated were S. cerevisiaexS. bayanus var. uvarum diploid hybrids. Moreover, microsatellite DNA analysis identified strains isolated in the same cellar as potential parents belonging to S. bayanus var. uvarum and S. cerevisiae.
Authors:
Christine Le Jeune; Marc Lollier; Catherine Demuyter; Claude Erny; Jean-Luc Legras; Michel Aigle; Isabelle Masneuf-Pomarède
Publication Detail:
Type:  Journal Article     Date:  2007-02-16
Journal Detail:
Title:  FEMS yeast research     Volume:  7     ISSN:  1567-1356     ISO Abbreviation:  FEMS Yeast Res.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-21     Completed Date:  2007-07-31     Revised Date:  2008-10-07    
Medline Journal Info:
Nlm Unique ID:  101085384     Medline TA:  FEMS Yeast Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  540-9     Citation Subset:  IM    
Affiliation:
Laboratoire Vigne Biotechnologie et Environnement, Université de Haute-Alsace, Herrlisheim, Colmar, France. christine.le-jeune@uha.fr
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MeSH Terms
Descriptor/Qualifier:
DNA, Fungal / genetics*
Fermentation
France
Hybridization, Genetic*
Karyotyping
Microsatellite Repeats
Mycological Typing Techniques
Polymerase Chain Reaction
Saccharomyces / classification*,  genetics,  isolation & purification,  metabolism
Saccharomyces cerevisiae / classification*,  genetics,  isolation & purification,  metabolism
Wine / microbiology*
Chemical
Reg. No./Substance:
0/DNA, Fungal

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