Changes in expression of genes involved in trehalose and glycogen synthesis in P. freudenreichii (pathways adapted from Chandra et al. [3]). Each box shows the fold change, expressed as log2, for each gene in all seven strains (CIRM-BIA118, -122, -123, -1, -472, -482, and -9) after 80 h at 4°C in comparison with gene expression at the reference time (20 h). Values of |fold change (log2)| >1 and <−1 are shown in dark and light gray, respectively.