Fig. 3. Gene expression profiles in white muscle tissue from control and heat shocked Gillichthys mirabilis. Each row represents a single cDNA clone and each columnrepresents a time point in the heat shock exposure. Genes depicted are those that were up- or downregulated at least twofold compared to the averaged values of the three control time points. Genes are clustered by cellular process, according to their gene ontology (GO) classification (classifications are numbered identically to those described in the legend to Fig. 2). For clarity, only two rows are dedicated to genes represented by two spots on the array. C, control; HS, heat shock; R, recovery.