Fig. 4

Module-treatment-correlation analysis results. A, D, G Module trait-correlation matrix for co-expression networks derived from the root cap and meristem (A), the elongation zone (D) and the differentiation zone (G). Each column represents a different treatment duration (6 h, 24 h and 48 h of water deficit) and each row represents one co-expression module identified by distinct color names. The color within the matrix cells shows the correlation coefficient between -1 (blue) and 1 (red). Only significant p-values are reported in the cells. One module with the highest significant trait correlation for each time point was chosen for further analyses and marked with bold labels. B, E, H Module eigengene expression pattern over treatment duration in the three selected modules for the root cap and meristem (B), the elongation zone (E) and the differentiation zone (H). Color indicates control (blue) and water deficit samples (green). C, F, I Gene significance versus module membership scatter plots for selected WGCNA modules from root cap and meristem (C), elongation zone (F) and differentiation zone (I). The Pearson correlation coefficient (r) is calculated and reported with the respective p-value