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Science 24 November 2006:
Vol. 314. no. 5803, pp. 1238 - 1239
DOI: 10.1126/science.314.5803.1238
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EVOLUTION:
Two Rapidly Evolving Genes Spell Trouble for Hybrids

Elizabeth Pennisi

Evolutionary geneticists are pinning down pairs of genes that help promote speciation (see Report on p. 1292 of this issue of Science); these genes are rapidly evolving, but not in response to ecological pressures. (Read more.)

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