Number of Lin⁻Sca1⁺⁺, Lin⁻Sca1⁺⁺kit⁺, and Lin⁻Sca1⁺⁺kit⁻ cells in congenic mice.

(A) Average number (mean ± SEM, n = 8) of Lin⁻Sca1⁺⁺, Lin⁻Sca1⁺⁺kit⁺, and Lin⁻Sca1⁺⁺kit⁻ cells per femur in B6 and B6.DBA/2-(D2Mit133-D2Mit200) congenic mice (the latter are indicated in the figure as B6.D2-chr2). Cell numbers were determined by cell sorting. P values (paired t test) are given at the tops of the figures.