Annotation of the Affymetrix porcine genome microarray.

Overview: The Affymetrix porcine genome microarray (http:// www.affymetrix.com/products/arrays/specific/porcine.affx) is minimally annotated. Less than 10% of the probe sets on this array are described with gene names, posing a challenge to biological interpretation of data. Lack of annotation is likely due to the limited availability of full-length porcine cDNA sequence. Presented here is a strategy for improving the annotation of this microarray.