Locus-specific qPCR analysis of selected clones in γ-retroviral LSK and STHSC progeny. (a–c) Locus-specific qPCR analysis of selected clones in individual recipients of LSK cells. Relative quantification of a target gene amplicon was estimated in comparison to amplicon at early time points, corresponding week 5 for (a) LSK#11, (b) LSK#12, and week 11 for (c) LSK#15. (d) Locus-specific qPCR analysis of selected clones in recipient ST#32. Relative quantification of Evi1 amplicon was estimated in comparison to amplicon at time point 5 weeks after BMT; for Smad3, Edem2, Mrpl1 amplicons in comparison to 11 weeks. Each analysis was performed in triplicate. Error bars indicate standard deviations. BMT, bone marrow transplantation; LSK, lineage marker negative, Sca1+, and c-Kit+; qPCR, quantitative PCR; STHSC, short-term repopulating hematopoietic stem cell.