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Unformatted text preview: branching pattern throughout the tree • Remember: Any given Tress is considered to be a Hypothesis. Identifying Synaptomorphies • Synapomorphies help us reconstruct evolutionary relationships. Synapomorphies v. homoplasies: Two major ways of differentiating • Choose characters that appear to be homologies • Use many characters for phylogenies—reduce effect of a few homoplasies. Method of Phylogenetic Recostruction: • The Hypothetic creatures of Llenoc • Create character matrix • 4 changes • Construct the most Parsimonius Tree • Parsimonies usually accepted. What characters can be used to constryuct phylogeies? • morphological • molecular • behavioral Use of Phylogentics • Overlay, for example •...
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This note was uploaded on 02/11/2008 for the course BIO G 101 taught by Professor Gilbert,c. during the Fall '07 term at Cornell.
- Fall '07