Summary of interactions between genes differentially expressed between G+ and G- muscles evidenced through a promoter analysis. Genes highlighted in red and green were up- and down-regulated in G+ compared to G- muscle, respectively. Gene names are indicated in capitals according to Gene Ontology. PPARA, Peroxisome proliferator-activated receptor alpha. Expression of PPARA was not measured in the present study. See Table 3 for other gene names.