C UN I.The Phylogeny of Bacteria 17.1 Phylogenetic Overview of Bacteria Deferribacter Cytophaga Flavobacteria Spirochetes Planctomyces/ Pirellula Verrucomicroblaceae Green sulfur bacteria Deinococci Green nonsulfur Chlamydia bacteria Cyanobacteria Thermotoga Actinobacteria Gram-positive bacteria Firmicutes and Mollicutes Thermodesulfobacterium Nitrospira Aquifex See Figure 17.2 Proteobacteria 2012 Pearson Education.Inc. Some major phyla of Bacteria based on 16S ribosomal RNA gene sequence comparisons. CHEN FENG,MICROBIOLOGY,SJTUChen Feng, Microbiology, SJTU I. The Phylogeny of Bacteria • 17.1 Phylogenetic Overview of Bacteria Some major phyla of Bacteria based on 16S ribosomal RNA gene sequence comparisons