Figure 4.

Comparative correlation heat map of NF and NP. The upper diagonal of the main matrix shows a correlation between pairs of genes among the NF (the red color corresponds to positive correlations, blue to negative correlations). The lower diagonal of the heat map shows a correlation between the same gene pairs in the NP controls. Modules are identified in the heat map by black squares and on the right side of the heat map by a color bar. The brown bands on the right side indicate the mean expression of the modules in the NF (first column) and the NP (second column); darker colors indicate higher mean expression levels.