Anemia is observed in recipients of all abnormal marrow genotypes, but not in wild type bone marrow recipients (mean hemoglobin, 8.64 ± 0.76 g/dL for Wt1+/R394W recipients, vs. 11.86 ± 1.11 g/dL for wild type, p = 0.03; Figure 5C). Here, WT1 is linked to anemia.