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Fig. 3. Maximum likelihood phenogram (mid-point rooted) based on a DNA alignment of
the coding sequence of arginase genes in vertebrates and three nonvertebrate
eukaryotes. Nomenclature of genes is identical to that used in
Fig. 2, with the inclusion of
three nonvertebrate eukaryote arginase sequences: Neurospora crassa
(Necr), Schizosaccharomyces pombe (Scpo) and
Schistosoma japonicum (Scja). The location of the common
ancestor of all vertebrate cytosolic arginase genes is shown by the arrow.
Bootstrap values, based on 300 bootstraps replicates, are placed to the left
of the appropriate nodes.