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Berkeley
STATISTICS 246 -
Multiple sequence alignment and phylogenetic trees
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Multiple sequence alignment and phylogenetic trees Stat 246 Spring 2002 Week 5b 1 A version of the tree of life Obtained from aligned sequences of ribosomal RNA 2 Species trees and gene trees after M Nei 1987 Molecular Evolutionary Genetics Genes can be polymorphic before speciation in different ways Time A A B X Y A B Z X Y B Z X Y 3 Z Tree topology Identical A E C D B F F B D C E A Not identical A E C D B F A E D C B 4 F Tree reconstruction A B C B A C C A B 5 Tree reconstruction 2 A B C D B A C D C B A D D B C A A B C D A D C B B D C A C A B D D A B C A C B D A C B D B C A D C D A B D C A B A D B C 6
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