Gene coexpression networks in lean (Lde) and obese (LT) pig muscle. The Lde prenatal network (A), Lde postnatal network (B), LT prenatal network (C), and LT postnatal network (D) are shown. The dendrograms were produced by average linkage hierarchical clustering of genes on the basis of topological overlap. The y axes correspond to co-expression distance and the x axis to genes. Dynamic tree cutting was used to determine modules, generally by dividing the dendrogram at significant branch points. The modules of coexpressed genes were assigned colors and numbers as indicated by the horizontal bar beneath each dendrogram. The y-axes correspond to co-expression distance and the x axis to genes. See also Additional file 1: Table S1.