Measurement of bone marrow CFU-Cs following Hspa9 knockdown. (A) YFP⁺ cells were isolated from the bone marrow of recipient mice and CFU-Cs were measured (n = 7-8). (B) All of the methylcellulose colonies derived from a mouse were harvested, pooled, and the percentage of annexin V⁺ cells was measured by flow cytometry (n = 7-8).