Donor chimerism (CD45.2+ cells) analysis in recipients transplanted with progeny of γ-retrovirally or lentivirally transduced sorted populations of HSCs. (a) Donor chimerism final analysis in BM, PB, and Spl of recipients transplanted with progeny of γ-retrovirally or lentivirally transduced long-term repopulating fraction of HSCs (LTHSCs). Average donor chimerism calculated for five mice of each experimental group. Error bars indicate 95% confidence intervals. (b) Donor chimerism final analysis in BM, PB, and Spl of recipients transplanted with progeny of γ-retrovirally or lentivirally transduced short-term repopulating fraction of HSCs (STHSCs). Error bars indicate 95% confidence intervals. BM, bone marrow; HSC, hematopoietic stem cell; LTHSC, long-term repopulating HSC; PB, peripheral blood; Spl, spleen; STHSC, short-term repopulating HSC.