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Phylogenetic tree of chloroplastic thioredoxins from Solanum lycopersicum (Sl) and those identified thioredoxins from Arabidopsis (At). The phylogenetic tree was constructed using MEGA 5 with the Neighbor–Joining method. Bootstrap values calculated from 1000 trials are shown at each node. The extent of divergence according to the scale (relative units) is indicated at the bottom. Predicted mature polypeptides lacking the putative transit peptide were employed for tree construction.
