Clones with integrations near MECOM, near sets of leukemia-related genes and near a set of retrovirally tagged cancer genes (RTCGD) are more abundant on average than other clones. (A) Clonal abundance estimation from sequence readcounts for clones with integrations near MECOM and LMO2. (B) Integration site-specific clonal tracking via ddPCR of clones with integrations near MECOM and LMO2.