Fig. 3.

Identification of gene modules associated with sex. Gene hierarchical cluster analysis using method #3 (A) and #4 (B) using the sea bass gonadal transcriptome. Heat map of the correlation of sex with module eigengene distances using method #3 (C) and #4 (D). Each color represents a module in the constructed gene co-expression network by WGCNA. The heat map is colored from red (1, positive) to blue (− 1, negative) to indicate the level of correlation of each module with the trait of interest. The red boxes highlight the selected modules for further analysis associated with sex (P < 0.01) (color in the online version). Genes not assigned to any of the previous modules are included in the gray module