Figure 4. Differential co-expression anslyses.

Differential co-expression (a) of clusters can be detected by a method proposed by Kostka and Spang [26], (b) of gene pairs can be detected by a method proposed by Lai et al. [24], and (c) of paired gene sets by a method proposed by Cho et al. [12]. C: conditions, g: genes, s: gene clusters, S: a priori defined gene sets. (Modified from [30]).