What are bacterial species?

By Frederick M. Cohan. Annual Review of Microbiology, 2002

787 citations recorded by the source corpus.

Subfields: Clinical Biochemistry, Ecology, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/c0471a9f988fca4d96498e5e8b0f025a6427e889

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Citations in the corpus

Assessing and Improving Methods Used in Operational Taxonomic Unit-Based Approaches for 16S rRNA Gene Sequence Analysis (2011, background): “Often, taxonomic outlines reflect biases within the field and battles between taxonomic “lumpers” and “splitters” (3, 25).”
Intraspecific ITS Variability in the Kingdom Fungi as Expressed in the International Sequence Databases and Its Implications for Molecular Species Identification (2008, background): “It is often assumed, implicitly or otherwise, that fungal intraspecifi c variability is comparatively low and generally applicable across the kingdom such that it can be represented by a percentage interval, notably 0–3% (c.f. Cohan, 2002; Izzo et al. 2005; Ciardo et al. 2006).”
Development and evaluation of a DNA-barcoding approach for the rapid identification of nematodes (2006, positive): “Such molecular barcodes are now routine in investigations of prokaryotic diversity (e.g. Cohan 2002), and have also been employed in unicellular eukaryotes, including some planktonic taxa (e.g. Massana et al. 2002, Moreira & López-Garcia 2002).”
Recognizing cyanobacterial diversity through adoption of a new species paradigm (2005, background): “…into a new ecological niche (i.e. uses a different set of microhabitats) such that the new species cannot be extinguished by adaptive mutants from DOI:10.1127/1864-1318/2005/0117-0071 www.schweizerbart.de eschweizerbartxxx ingentacopy eschweizerbartxxx ingenta its former population” (COHAN 2002).”
Microbial Biodiversity in Groundwater Ecosystems (2009, neutral): “environmental conditions (Cohan, 2002).”
Horizontal gene transfer, genome innovation and evolution (2005, background): “Or, cohesion could also be generated through selective sweeps that occur if a gene that provides a selective advantage to its carrier arises through mutation or gene transfe”
Re-evaluating prokaryotic species (2005, background): “The recommendation to delineate species using a 70% DNA–DNA binding criterion does not correspond to a theory-based concept of what properties a species should have, but was calibrated empirically to yield many of the phenotype-based species already recognized at the time of its inceptio”
Size doesn’t matter: towards a more inclusive philosophy of biology (2007, background): “The first value was chosen because it appeared to map onto phenotypic clusters for no known evolutionary reasons; the second because it conveniently mapped onto the 70% measure (Lan and Reeves 2000; Cohan 2002).”
A Bioinformatician's Guide to Metagenomics (2008, neutral): “population curtailing genomic divergence (24).”
Understanding diversity in coral-algal symbiosis: a cluster-based approach to interpreting fine-scale genetic variation in the genus Symbiodinium (2009, background): “Palys et al. (1997) and Cohan (2001, 2002) adapted the CSC to bacteria, which are primarily asexual organisms.”
Marine DNA viral macro- and micro-diversity from pole to pole (2019, background): “Validating Viral ‘‘Population’’ Boundaries Defining species is controversial for eukaryotes and prokaryotes (Kunz, 2013; Cohan, 2002; Fraser et al., 2009) and even more so for viruses (Bobay and Ochman, 2018), largely because of the paradigm of rampant mosaicism stemming from rapidly evolving ssDNA…”
Diversity, abundance, and biomass production of bacterial groups in the western Arctic Ocean (2007, background): “It has been hypothesized that these diverse bacterial assemblages may be composed of ecotypes, that is, groups of closely related bacteria that fill similar ecological roles (Cohan 2002, Giovannoni 2004).”
Gene transfer into the fungi (2011, background): “The term species is of course a difficult concept to apply to asexual microbes (Cohan, 2002; Doolittle, 2008; Konstantinidis and Tiedje, 2005) so HGT is best k (T. A. Richards). ritish Mycological Societ isolated genomes.”
Notes on the characterization of prokaryote strains for taxonomic purposes. (2010, background): “The development of the concept of the ecotype indirectly puts emphasis on the process of ecological selection on the organism, where it is the expressed phenotype (at the level of the organism) rather than the gene that is exposed to direct selection (Cohan, 2002).”
Spatial scaling of microbial biodiversity. (2006, background): “This can occur because rare exchange enables genetic variation associated with niche diversification to lead to speciation, eliminating the need for geographic isolation (Cohan 2002).”