Genes hit by retroviral integration are functionally linked in gene networks. Representative networks originated by Ingenuity analysis of RV target genes (Table S4 for a complete list). Both networks are made of 35 target genes, with an Ingenuity score of 42 or higher. The color code indicates the most significant biological functions associated to each network (P < .001). (A) RV network 1; (B) RV network 4 (networks are identified in Table S4).