METHODS
Yeast strains. We have analysed 243 different strains belonging
to 132 different yeast species of 25 genera, obtained
from the Spanish Type Culture Collection (CECT). To keep
this study to a manageable size, we have mainly relied on
type strains representing the 132 yeast species most frequently
isolated from food. For some species, when substantial
heterogeneity was suspected, or due to their biotechnological
importance, additional strains were also
characterized. The designations of the strains are listed in
Tables 1-3