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Phylogenetic tree of PCNA constructed by the Neighbor–Joining method based on amino acid (aa) sequences from P. coccineus and other selected eukaryotic organisms was created using MEGA 3.1 software (Kumar et al., 2004). The scale bar represents 0.05 substitutions per site, and the numbers next to the nodes are bootstrap values from 100 000 replicates. Values equal to or higher than 80% are shown.
