Background: Although the clinical utility of array comparative genomic hybridization (aCGH) is undisputed, the implementation of this technology is a unique experience for each laboratory.
Objective: Endeavors to construct a bacterial artificial chromosome (BAC)-based CGH microarray targeting microdeletion and duplication syndromes related to mental retardation and developmental delay are described.
Method: Covering each chromosome at the 650-band level, the array comprises 1360 BAC clones with emphasis on the subtelomeric and pericentromeric regions and enrichment of genomic hot spots containing genes associated with specific constitutional disorders.