Figure 6. SSU rRNA phylogenetic tree.
The tree was constructed using the Fitch Distance method with Kimura 2-parameter correction and was based on 1117 unambiguously aligned nucleotide positions. The A. longum 16S gene sequence was aligned to the database, which incorporated the Silva SSU alignment (www.arb-silva.de), using parsimony methods. Values at nodes represent percent support for 1000 step bootstrap parsimony analyses of the dataset. Bar represents 10% sequence variation. Symbols: ●documented sporulation, Ø sporulation not observed. Where no symbol is given, spore formation was not classified. ✶ Certain members of the phylum Firmicutes are classified as Gram-negative or Gram-variable.