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Nature Genetics 41, 142 - 143 (2009)
doi:10.1038/ng0209-142
Reverse evolution and evolutionary memory
Michael M Desai1
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Michael M. Desai is at the Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA.
e-mail: mmdesai@princeton.edu
Abstract
Experimental reverse evolution, in which a population is readapted to an ancestral environment, can probe the nature and extent of evolutionary memory. A new study shows that standing genetic variation is key to this memory in experimental Drosophila populations, where selection drives rapid but incomplete convergence to ancestral genotypes.
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