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Example of a tree showing Clostridium neonatale, Clostridium butyricum, and Clostridium beijerinckii strains based on spectral fingerprints obtained from whole colonies (crude smear preparation). The tree was obtained using the Andromas software (version 3.0-2013). The scale bar indicates dissimilarity between two spectra based on the Dice coefficient. The Clostridium perfringens ATCC 13124 type strain was used as the outgroup in the construction of the tree.
