To compare the progression network with genes selected during earlier events in tumorigenesis, a second RIM/DS barcode screen was conducted, including MoMLV-infected end-stage lymphomas from parental CD2-MYC, -Runx2 and wild-type mice with a subset of Runx2/MYC progressing tumours (Figure 4, Table S9). The gene discussed is RUNX2; the disease is lymphoma.