Fig. 2. Unrooted syntaxin PM phylogeny. This data set of 24 taxa and 112 positions shows the two independent evolutionary diversifications of syntaxin paralogs involved in Golgi to plasma membrane transport. The syntaxins derived from the animal diversification are enclosed in the pink box, while the ones in the higher land plant diversification are contained in the orange box. Values for ProtML RELL, Quartet Puzzling and Puzzleboot are shown at all nodes supported over 50% by at least one method. Bracket A shows the separation of syntaxin 1 homologs, while bracket B shows the separation of syntaxins 1, 2 and 3 from syntaxin 4 sequences. New syntaxin sequences provided by this study are shown in bold.

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