In their study, half of the driver mutations located on the branches of tumor phylogenetic trees targeted oncogenes, including PIK3CA, NFE2L2 and mTOR whereas the majority of truncal and clonal driver mutations occurred in tumor-suppressor genes, including TP53, KMT2D and ZNF750. However, the analysis based on multiregional whole-exome sequencing is not able to completely resolve the true temporal ordering of all somatic variants. The gene discussed is TP53; the disease is neoplasm.