Copyright information:Taken from "Analysis of sp. natural isolates from different Brazilian ecosystems"http://www.biomedcentral.com/1471-2180/7/58BMC Microbiology 2007;7():58-58.Published online 21 Jun 2007PMCID:PMC1913517.h the UPGMA algorithm. Numbers 1 to 3 identify the 16S rDNA sequence based phylogeny clusters obtained with the sp. isolates.