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Science 10 August 2007:
Vol. 317. no. 5839, pp. 758 - 759
DOI: 10.1126/science.1146921
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Perspectives

EVOLUTION:
An Embarrassment of Switches

Leonid Kruglyak and David L. Stern

A surprising abundance of evolutionary changes in transcription factor binding sites may obscure the causes of phenotypic divergence.

The authors are in the Department of Ecology and Evolutionary Biology, and L. Kruglyak is also at the Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA. E-mail: leonid{at}genomics.princeton.edu, dstern{at}princeton.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)