This Week in Science | GenomeWeb

This Week in Science

In Science this week, researchers from Michigan State University publish data suggesting that there is no limit to how much evolutionary fitness can increase in a given population. Drawing on 12 E. coli populations that were founded from a common ancestor in 1988, the scientists examined the fitness trajectories for those bacterial populations over the course of 50,000 generations. They found no upper limit on fitness gains, as measured by increases in growth rates.

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