Summary of cytogenetic alterations in 6 human leukemia cell lines by aCGH. Whole-genome frequency distribution of chromosomal alterations in 6 human leukemia cell lines as detected by array CGH and visualized by SeeGH. Lines to the right of the chromosome indicate gain of chromosomal material. Lines to the left of the chromosome indicate loss of chromosomal material. Line patterns correspond to the indicated cell line.