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Extreme Life and Environments
Phylogeny comparison
03/27/12

 

Comparison between the phylogenies of the catalase-peroxidase and small subunit rRNA genes for cyanobacteria with sequenced genomes. Although there are some differences in branching order between the two trees, the marine Synechococcus KatG proteins form a well-supported monophyletic clade, implying that this protein was present in the clade’s ancestor and was subsequently lost in several lineages (indicated by red dots on the rRNA tree), including Prochlorococcus. Green, representatives of the Prochlorococcus clade; orange, marine Synechococcus clade; cyan, other Cyanobacteria. Bootstrap values less than 75% are omitted. Only the tree topologies are shown; branch lengths do not represent genetic distances. (Alignments and distance matrices used to produce the figure have been deposited at http://www.datadryad.org. Credit: Morris et al. 2012



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