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Science 18 August 2006:
Vol. 313. no. 5789, pp. 924 - 925
DOI: 10.1126/science.1130958
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Perspectives

EVOLUTION:
Traversing the Adaptive Landscape in Snapdragons

Elena M. Kramer and Kathleen Donohue

The genetic changes that underlie adaptive evolution of species are not easy to determine. Snapdragon species with different flower colors that coexist in the Pyrenees offer a promising system for analyzing them.

The authors are in the Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. E-mail: ekramer{at}oeb.harvard.edu

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