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Science 22 March 2002:
Vol. 295. no. 5563, p. 2183
DOI: 10.1126/science.295.5563.2183c
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NetWatch

The good old lab rat will soon join the menagerie of model organisms with sequenced genomes. As a preliminary step, the National Center for Biotechnology Information recently posted a set of genome maps for the beady-eyed rodent. Right now, the offerings are the genomic equivalent of those early navigational charts that only depicted a few landmarks. The three versions available at the Rat Map Viewer cover all of the Norway rat's 21 pairs of chromosomes, specifying the locations of several thousand marker sequences. For the coordinates of some 1600 genes, along with predicted locations for more than 6300 others, try RatMap, a database hosted by the University of Göteborg in Sweden .

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Science. ISSN 0036-8075 (print), 1095-9203 (online)