phylogeny[1] - The tree of life: Phylogeny I. Hierarchical...

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1 The tree of life: Phylogeny I. Hierarchical classification system A. Similarities due to common descent II. Phylogenetic reconstruction A. Why are phylogenies important? B. How to reconstruct phylogenies 1. example: amino acid sequences of myoglobin 2. Problems due to convergence 3. Problems due to ancestral traits 4. Distinguishing ancestral from derived traits 5. Phylogenetic reconstructions using genetic distances III. Taxonomy A. Taxonomic hierarchies B. Evolutionary method of classification Similarities due to common descent: Patterns of similarity permit hierarchical classification (p. 96) Speciation explains why we can classify organisms hierarchically (p. 96) Phylogeny = evolutionary relationships among organisms (p. 96) Phylogenies indicate: • Branching orders • Timing of speciation events • History of events
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2 Relationship between time of separation and similarity (p. 96) Why are phylogenies important?
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phylogeny[1] - The tree of life: Phylogeny I. Hierarchical...

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