Adaptation by introgression
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* Corresponding author: Michael L Arnold arnold@plantbio.uga.edu
1 Department of Genetics, University of Georgia, Athens, Georgia 30602, USA
2 Department of Biology, Texas State University, San Marcos, Texas 78666, USA
Journal of Biology 2009, 8:82 doi:10.1186/jbiol176
Published: 13 October 2009Abstract
Both selective and random processes can affect the outcome of natural hybridization. A recent analysis in BMC Evolutionary Biology of natural hybridization between an introduced and a native salamander reveals the mosaic nature of introgression, which is probably caused by a combination of selection and demography.