Abstract Detail
Empirical Approaches to Phylogenetic Comparative Methods in Plant Science May, Michael R. [1], Heath, Tracy A. [2], Landis, Michael J. [2], Moore, Brian R. [3]. A Novel Bayesian Method for Identifying Lineage-specific Rates of Continuous-trait Evolution (in Plants). Many biological questions focus on the evolution of continuous traits: At what rate does a trait evolve? What was the value of a trait in an ancestral species? Does a particular trait evolve towards an optimal value? The simplest model - the homogenous Brownian-motion process - assumes that the trait evolves at a constant rate across lineages. We present a novel Bayesian method that allows the rate of Brownian motion to vary over branches, and demonstrate how the method can be used to test hypotheses about the tempo of trait evolution on phylogenies.
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1 - University of California, Davis, Evolution and Ecology, 2320 Storer Hall, One Shield Avenue, Davis, CA, 95616, USA
2 - University of California, Berkeley
3 - University of California, Davis
Keywords:
phylogenetic comparative methods
Bayesian inference
Character evolution.
Presentation Type: Symposium or Colloquium Presentation
Session: C1
Location: Summit/Boise Centre
Date: Monday, July 28th, 2014
Time: 4:30 PM
Number: C1012
Abstract ID:700
Candidate for Awards:None | 