Journal of Heredity Advance Access originally published online on August 5, 2008
Journal of Heredity 2009 100(1):7-10; doi:10.1093/jhered/esn058
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Perspectives |
Adaptation from Leaps in the Dark
From the Department of Biological Sciences, Bowling Green State University, Bowling Green, OH 43403, USA
Address correspondence to R. C. Woodruff at the address above, or e-mail: rwoodru{at}bgnet.bgsu.edu.
Although many adaptations occur by selection of beneficial alleles transformed from neutral or deleterious standing variation, new identical mutant alleles that arise as premeiotic clusters have an increased probability of fixation that can rise to the levels that are similar to the fixation of standing variation. Hence, the evidence is still out on the proportion of adaptations that use preexisting variation and new mutations.
Key Words: adaptation fixations mutation standing genetic variation
Corresponding Editor: James N. Thompson
Received April 18, 2008
Revised June 26, 2008
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