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Experimental tests of the roles of adaptation, chance, and history in evolution.

Science (New York, N.Y.) - 6 Jan 1995

Travisano M, Mongold J A, Bennett A F, Lenski R E

Abstract excerpt

The contributions of adaptation, chance, and history to the evolution of fitness and cell size were measured in two separate experiments using bacteria. In both experiments, populations propagated in identical environments achieved similar fitnesses, regardless of prior history or subsequent chance events. In contrast, the evolution of cell size, a trait weakly correlated with fitness, was more strongly...

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PMID: 7809610
DOI: 10.1126/science.7809610

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