Bone marrow hematopoietic progenitors are reduced in mice transplanted with Hspa9-knockdown cells. (A) KLS cells, CMPs, GMPs, and MEPs were measured in the bone marrow of recipient mice using flow cytometry (n = 6). (B) TP53-homozygous–null donor bone marrow cells (p53^−/−) were transduced with control or Hspa9 shRNA, and YFP⁺ KLS, CMPs, GMPs, and MEPs were measured in the bone marrow of recipient mice using flow cytometry (n = 2). All data represent the means ± SD.