GEPs of MDS versus normal CD34⁺ marrow cells. This unsupervised hierarchical cluster dendrogram depicts differential branches and GEPs from normal and MDS patients (FDR = 10%). Indicated are the clinical and cytogenetic characteristics of these patients as well as whether they subsequently developed AML (purple) or remained stable (blue or brown). Brown dendrites from the patient arrays were from patients with del(5q) MDS.