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Unformatted text preview: 2. Methods of phylogenetic inference. a. maximum parsimony b. likelihood and Bayesian approaches - depend on having a defined "model" of evolution (e.g., know rules that govern substitutions) 3. Examples of phylogenetic inference from molecular data. a. relationships among primates - humans and chimps as sister species b. the plague locust and relatives c. Hawaiian crickets - data from different genes or gene regions do not always tell the same story C. Molecular clocks. 1. Sequence divergence as a function of time a. calibrating clock rate b dating lineage splitting events from the fossil record 2. Variation in clock rate. a. among different sequences b. among different lineages c. no "universal" molecular clock SECTION ASSIGNMENT: Phylogenetic Inference. Handout will be posted on web today or tomorrow. Please read thehandout BEFORE coming to section next week....
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- Fall '07