Bis2CFall10.Lecture2

Bis2CFall10.Lecture2 - Lecture 2 BIS 002C BIODIVERSITY AND...

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Lecture 2: BIS 002C BIODIVERSITY AND THE TREE OF LIFE Lecture 2 Phylogeny 2: Trees, Taxa, and Groups Sunday, September 26, 2010
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Where we are going and where we have been • Previous lecture : ! 1. Introduction and Phylogeny 1 • Current Lecture: ! 2. Phylogeny 2: Trees, Taxa and Groups • Next Lecture: ! 3. Phylogeny 3: Characters Sunday, September 26, 2010
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Lecture 2 Outline • A. A little video • B. Rotating phylogenetic trees • C. Components of a phylogenetic tree • D. Rotating branches in trees • E. Groupings in trees • F. Relatedness* • G. Polytomies* • * Note these parts may run over into Lecture 3 Sunday, September 26, 2010
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A. A movie Movie 4 Sunday, September 26, 2010
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5 Sunday, September 26, 2010
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B. Rotating phylogenetic trees B. Rotating trees 6 Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree Present Past Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree Present Past Vertical Tree Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h Present Past Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h Present Past Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h Present Past Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h Present Past Horizontal Tree Sunday, September 26, 2010
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Horizontal tree Horizontal Tree Sunday, September 26, 2010
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Horizontal tree Horizontal Tree Sunday, September 26, 2010
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Horizontal tree Horizontal Tree Sunday, September 26, 2010
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Horizontal tree Vertical Tree Sunday, September 26, 2010
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C. Components of a phylogenetic tree C. Parts of a tree 13 Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree Present Past Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h ???? Sunday, September 26, 2010
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A model phylogenetic tree a b c d e f g h taxa taxon : any group of species that we designate a name (p543) (e.g., a) taxa : multiple taxons (e.g., a and b) Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree ???? Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree nodes f g h i j k Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree nodes node : (1) common ancestor of taxa “above” the node (e.g., f is common ancestor of a & b) (2) splits in branches from one lineage into more f g h i j k Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree ???? Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree internal nodes Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree ???? Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree root node Sunday, September 26, 2010
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a b c d e f g h A model phylogenetic tree root node root node : (1) common ancestor of all taxa in the tree (2) point of earliest split in the tree Sunday, September 26, 2010
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This note was uploaded on 11/18/2010 for the course BIS 2C 54181 taught by Professor Eisen during the Fall '10 term at UC Davis.

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Bis2CFall10.Lecture2 - Lecture 2 BIS 002C BIODIVERSITY AND...

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