16_Phylogenetic_trees

16_Phylogenetic_trees - Inferring...

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ferring Ph logenetic Trees Inferring Phylogenetic Trees d ’ ti Today’s questions: I. Reading trees II. Analyzing homologous traits III. The problem of homoplasy IV. Using parsimony as a criterion in tree construction V. Using synapomorphies to build trees
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I. Reading trees How does this differ from the Great Chain of Being?
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Monotremes Marsupials Golden mole, tenrec lephant shrews Elephant shrews Aardvark Elephants Hyraxes urrent Dugong, manatees Armadillos Anteater loths Current phylogeny of the mammals, Sloths Flying shrews, tree shrews Prosimians Monkeys estimated from DNA sequence ata Apes Rabbits Rodents oles hedgehogs data Moles, hedgehogs Hyenas, weasels, wolves Seals, sea lions Pangolin Horses, rhinos Camels, pigs, cows Hippos, whales, dolphins Bats
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II. Analyzing homologous traits A. How do we know that homologous traits are homologous? Example: Fur in mammals Structure? Development? Genetic basis?
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Gibbons Orangutan Western gorilla Eastern gorilla Bonobo ommon chimpanzee Common chimpanzee Hominins
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2. Is the fur of chimps and the hair of humans
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This note was uploaded on 05/25/2010 for the course BIO 180 taught by Professor Bradshaw during the Spring '09 term at University of Washington.

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16_Phylogenetic_trees - Inferring...

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