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Phylogenetic tree of the (a) PAL family and the (b) POX A family. Amino acid sequences were aligned with ClustalW and NJ tree constructed using the ClustalX 2.1 and interactively designed with iTOL. Bootstrap values are assigned above the branches. Orange and sky blue indicate dicot and monocot clusters, respectively, whereas a pink one indicates a mixed cluster found only with PAL.
