FOXO1 and neoplasm: Initial examination of these clusters/subsets revealed that all GEMM tumours in ML clusters corresponded to Pax3::Foxo1 in one of three lineages (Myf5, Myf6, and Pax3) while all tumours in MR1 corresponded to DNA alterations other than Pax3::Foxo1 in these same three lineages.