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Science 30 June 2000:
Vol. 288. no. 5475, pp. 2349 - 2350
DOI: 10.1126/science.288.5475.2349

Reports

Accommodating Phylogenetic Uncertainty in Evolutionary Studies

John P. Huelsenbeck, 1* Bruce Rannala, 2 John P. Masly 1

Many evolutionary studies use comparisons across species to detect evidence of natural selection and to examine the rate of character evolution. Statistical analyses in these studies are usually performed by means of a species phylogeny to accommodate the effects of shared evolutionary history. The phylogeny is usually treated as known without error; this assumption is problematic because inferred phylogenies are subject to both stochastic and systematic errors. We describe methods for accommodating phylogenetic uncertainty in evolutionary studies by means of Bayesian inference. The methods are computationally intensive but general enough to be applied in most comparative evolutionary studies.

1 Department of Biology, University of Rochester, Rochester, NY 14627, USA.
2 Department of Medical Genetics, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
*   To whom correspondence should be addressed. E-mail: johnh{at}brahms.biology.rochester.edu


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