Article
Experiments on the role of deleterious mutations as stepping stones in adaptive evolution.
Proceedings of the National Academy of Sciences of the United States of America - 20 Aug 2013
Covert Arthur W, Lenski Richard E, Wilke Claus O, Ofria Charles
Abstract excerpt
Many evolutionary studies assume that deleterious mutations necessarily impede adaptive evolution. However, a later mutation that is conditionally beneficial may interact with a deleterious predecessor before it is eliminated, thereby providing access to adaptations that might otherwise be inacce...
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