James W. Curtsinger is in the Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, Minnesota 55108, USA jwcurt@umn.edu
A new study of Drosophila melanogaster bridges the gap between quantitative trait loci (QTLs) for lifespan and a gene involved in catecholamine synthesis. The causative gene also contributes to variation in lifespan in a natural population and seems to be subject to balancing selection in nature.
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