MASNEUF POMAREDE, Isabelle; JUQUIN, Elodie; MIOT-SERTIER, Cecile; RENAULT, Philippe; LAIZET, Yec'han; SALIN, Franck; ALEXANDRE, Herve; CAPOZZI, Vittorio; COCOLIN, Luca; COLONNA-CECCALDI, Benoit; ENGLEZOS, Vasileios; GIRARD, Patrick; GONZALEZ, Beatriz; LUCAS, Patrick; MAS, Albert; NISIOTOU, Aspasia; SIPICZKI, Matthias; SPANO, Giuseppe; TASSOU, Chrysoula; BELY, Marina; ALBERTIN, Warren

doi:10.1093/femsyr/fov045

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MASNEUF POMAREDE, Isabelle

Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

JUQUIN, Elodie

MIOT-SERTIER, Cecile
Unité de Recherche Oenologie [Villenave d'Ornon] [OENO]

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FEMS Yeast Research. 2015-08-01, vol. 15, n° 5, p. fov045

Résumé en anglais

The yeast Candida zemplinina (Starmerella bacillaris) is frequently isolated from grape and wine environments. Its enological use in mixed fermentation with Saccharomyces cerevisiae has been extensively investigated these last few years, and several interesting features including low ethanol production, fructophily, glycerol and other metabolites production, have been described. In addition, molecular tools allowing the characterization of yeast populations have been developed, both at the inter- and intraspecific levels. However, most of these fingerprinting methods are not compatible with population genetics or ecological studies. In this work, we developed 10 microsatellite markers for the C. zemplinina species that were used for the genotyping of 163 strains from nature or various enological regions (28 vineyards/wineries from seven countries). We show that the genetic diversity of C. zemplinina is shaped by geographical localization. Populations isolated from winemaking environments are quite diverse at the genetic level: neither clonal-like behaviour nor specific genetic signature were associated with the different vineyards/wineries. Altogether, these results suggest that C. zemplinina is not under selective pressure in winemaking environments.< Réduire

Mots clés en anglais

Base Sequence

Candida

DNA

Fungal

Ethanol

Fermentation

Fructose

Genetic Variation

Genome

Fungal

Genotype

Genotyping Techniques

Geography

Glycerol

Microsatellite Repeats

Saccharomyces cerevisiae

Selection

Genetic

Sequence Analysis

DNA

Vitis

Wine

Grape

Microsatellite

Must

Oenology

SSR

Starmerella bacillaris

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The yeast Starmerella bacillaris (synonym Candida zemplinina) shows high genetic diversity in winemaking environments.

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Mots clés en anglais

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