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Science 1 February 2002:
Vol. 295. no. 5556, p. 782
DOI: 10.1126/science.295.5556.782a
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News of the Week

PHEROMONE RECEPTION:
When in Doubt, Mice Mate Rather Than Hate

Mary Beckman

Research published online by Science this week (www.sciencexpress.org) suggests that the default social interaction for mice is to mate; only a scent-based cue from another male inhibits a male's urge to mate and spurs him to fight. The number of genes that control this behavior is precisely one; it encodes the protein TRP2 that sits on the surface of certain olfactory nerves that detect pheromones. The work opens the way for genetic analysis of a number of behaviors that are influenced by pheromones.

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