Fig. 4

Expression profiles during cold exposure (from 0 to 9 weeks) ordered by the number of genes assigned. As indicated on the graphic legend at the bottom right, the number on the upper left of each profile is the profile ID. The number in the bottom left indicates the number of genes assigned to the profile during clustering. Profiles with colored background are significant in terms of the number genes assigned to them in comparison to random permutations. Profiles colored with the same shade belong to the same cluster (correlation > 0.7)