A total of 10 882 porcine microsatelite repeats were identified in genomic shotgun sequences from the Sino-Danish Pig Genome Sequencing Consortium (http://piggenome.dk). Of these, 4528 microsatellites were placed on a pig-human comparative map by BLAST analysis of porcine sequences against the human genome (BLAST cut-off threshold = 1 x 10^-5). All microsatellite sequences placed on the comparative map are accessible at http://www.animalgenome.org/QTLdb/pig.html. These sequences increase the number of identified microsatellites in the porcine genome by several orders of magnitude. They are a new resource of microsatellite sequences for generating markers to be used in linkage studies and in fine mapping and positional cloning of quantitative trait loci.