Figure 5

Heat map of differentially expressed TFs under cold stress. To be considered differentially expressed, the transcript must have RPKM ≥ 2 in at least one tissue, 2-fold or greater change, and P ≤ 0.05. According to their expression pattern under cold stress, the differentially expressed TFs were categorized in to 3 groups and 10 subgroups. The number at the left of the heat map (such as 24, 55, 6.9%) represented the amount of the families, differentially expressed TFs and the percentage of the total differential expressed TFs in each group, respectively. Yellow indicates high expression, black indicates intermediate expression, and blue indicates low expression.