This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.
For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.close box
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Information on the Internet
- Phylogenomics: A Genome Level Approach to Assembling the Bacterial Branches of the Tree of Life. The Institute for Genomic Research.
- The Prokaryotes. An evolving electronic resource for the microbiological community.
- Introduction to the Bacteria. UCMP Berkeley.
- MicrobeWorld. American Society of Microbiology
- Microbes.info. The Microbiology information portal.
- Virtual Museum of Bacteria
- Digital Learning Center for Microbial Ecology. A science education project at Michigan State University.
- Bacteriology 303. Study aids and background readings. University of Wisconsin - Madison.
- The Microbial World: Profiles of Microorganism. An educational resource covering bacteria, fungi, viruses, biological control, environmental microbiology, disease of plants, humans and animals. Produced by Jim Deacon, Institute of Cell and Molecular Biology, and Biology Teaching Organisation, University of Edinburgh.
- Stalking the Mysterious Microbe. A kid-oriented site from the American Society for Microbiology.
- Bugs in the News!. Interesting facts about microbes compiled by John C. (Jack) Brown.
- The Microbiology Network. A communication resource for the microbiologist.
- List of Bacterial names with Standing in Nomenclature. J. P. Euzéby.
- TIGR Microbial Database. A listing of microbial genomes and chromosomes completed and in progress.
- Bergey's Manual of Systematic Bacteriology, second edition. The taxonomic outline for the 5 volumes, including all species, type strains, and 16S rRNA sequence data can be downloaded from this site.
- Bacterial Nomenclature Up-To-Date. DSMZ-Deutsche Sammlung von Mikro-organismen und Zellkulturen GmbH, Braunschweig, Germany.
- The"Bad Bug Book". Foodborne Pathogenic Microorganisms and Natural Toxins Handbook. U.S. Food & Drug Administration Center for Food Safety & Applied Nutrition.
- Cells Alive!. Videos and images of bacteria and other organisms.
- Public Health Image Library. Centers for Disease Control and Prevention (CDC).
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