Oenococcus oeni genome plasticity is associated with fitness.

Oenococcus oeni strains are well-known for their considerable phenotypic variations in terms of tolerance to harsh wine conditions and malolactic activity. Genomic subtractive hybridization (SH) between two isolates with differing enological potentials was used to elucidate the genetic bases of this intraspecies diversity and identify novel genes involved in adaptation to wine. SH revealed 182 tester-specific fragments corresponding to 126 open reading frames (ORFs).

Correlation between indigenous Oenococcus oeni strain resistance and the presence of genetic markers.

This study reports on monitoring Oenococcus oeni intraspecific diversity evolution during winemaking. Three different wines were monitored. The proportion of O.

Intraspecific diversity of Oenococcus oeni strains determined by sequence analysis of target genes.

Using molecular techniques and sequencing, we studied the intraspecific diversity of Oenococcus oeni, a lactic acid bacterium involved in red winemaking. A relationship between the phenotypic and genotypic characterization of 16 O. oeni strains isolated from wine with different levels of enological potential was shown.