Fig. 8From: Genome-wide identification and analysis of WRKY gene family in maize provide insights into regulatory network in response to abiotic stressesCo-expression network analysis of ZmWRKY genes. (a) Elgengene adjacency heatmap. A high degree of correlation between modules is indicated by red. (b) Module sample correlation. Each row corresponds to a module. Each column corresponds to specific tissue. The color of each cell at row-column intersection indicates the correlation coefficient between the module and the tissue. A high degree of correlation between a specific module and tissue type is indicated by redBack to article page