Percentage of donor nucleated cells in the blood of individual mice.

The mice had been transplanted with 4 × 10⁵ Ly-5.2 compromised cells and either 5000 Lin⁻ c-kit⁺Sca-1⁺ CD34⁻ cells or 1000 Lin⁻c-kit⁺ Sca-1⁺ CD34⁺ test (Ly-5.1) cells. The numbers of the transplanted CD34⁻ and CD34⁺ cells reflected the ratio of cells in R4 and R5 windows of Figure 3. ○, 2 months posttransplantation; ●, 5 months posttransplantation; ■, 8 months posttransplantation.