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Phylogenetic reconstruction of the Tuber rufum clade based on maximum likelihood analysis of the ITS rDNA region with 16 ingroup and 3 outgroup taxa (T. melanosporum, T. indicum, and T. regimontanum). The analysis was based on a GTR model of nucleotide substitutions and resulted in a most likely tree with a log likelihood score of –ln 4198.629. Scale bar = 0.03 substitutions per site.
