CDKN2A and melanoma: Tumor suppressors and oncogenes with a demonstrated role in melanoma tumorigenesis and progression lay on regions that are recurrently aneuploid, including the oncogenes BRAF (7q34) and MYC (8q24) and the tumor suppressors BAP1 (3p21), CDKN2A (9p21) and PTEN (10q23).