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Wednesday, July 24, 2013
Evolution picks up hitchhikers: Pervasive genetic hitchhiking and clonal interference in evolving yeast populations
[unable to retrieve full-text content]In a twist on "survival of the fittest," researchers have discovered that evolution is driven not by a single beneficial mutation but rather by a group of mutations, including ones called "genetic hitchhikers" that are simply along for the ride. These hitchhikers are mutations that do not appear to have a role in contributing to an organism's fitness and therefore its evolution, yet may play an important role down the road.
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