Sarmiento-Rubiano et al. BMC Genomics 2010, 11:504 http://www.biomedcentral.com/1471-2164/11/504 Page 6 of 16 Figure 1 Phylogenetic tree showing relationships among 16S rRNA gene sequences of species in the Lactobacillus acidophilus group, including Lactobacillus taiwanensis, and species representing different lineages within the genus Lactobacillus. The tree was created using a maximum-likelihood approach and numbers at branch points are bootstrap values (based on 500 samplings expressed in percentages). Only bootstrap values over 75% are shown. Bar indicates sequence divergence. The tree has been arbitrarily rooted. In parenthesis are shown the GenBank or Ribosomal Database Project II accession numbers.