MBIO 4440 Lecture Notes - Lecture 14: Phylogenomics, Bacterial Taxonomy, 18S Ribosomal Rna
7 May 2019
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Paper: universal species concept: pipe dream or a step toward unifying biology? by james t. Archaea and the 18s rrna of the eukarya [1]. The tree of life has been one of the major unifying advances in biology. The highly conserved 16s rrna became the most important macromolecule for bacterial taxonomy because of its fidelity in inferring evolution at taxonomic levels at and above the genus. Bergey"s manual trust adopted the phylogenetic approach for taxonomy of the archaea (archaebacteria) in the first edition of bergey"s manual of systematic. Furthermore, the entire second edition uses the phylogenetic approach for the bacteria as well as the archaea (www. bergeys. org). Therefore, for the first time, a complete hierarchical taxonomy based on the phylogeny of 16s rrna gene sequences is in place for the. Bacteria as well as the archaea from the domain down to the genus.
