NDLI: Universal species concept: pipe dream or a step toward unifying biology?

Content Provider	Springer Nature Link
Author	Staley, James T.
Copyright Year	2009
Abstract	The Universal Tree of Life, which is based on phylogenetic analysis of the RNA sequence from the small ribosomal subunit, was a breakthrough in understanding the relatedness among all living organisms. The result has had a major impact on taxonomy by separating life into three domains: Eukarya, Bacteria, and Archaea. Indeed, microbiologists have used the 16S ribosomal RNA (rRNA) of the small ribosomal subunit to construct the hierarchical classification of Bacteria and Archaea from the level of domain to genus. However, the 16S rRNA of the Bacteria and Archaea and the corresponding 18S rRNA of the Eukarya are too highly conserved to be useful phylogenetically at the species level. For this reason, I propose that biologists adopt a phylogenomic species concept that utilizes both phylogenetic analyses of less highly conserved genes and proteins as well as genomic analyses for the circumscription of species. If biologists adopt a phylogenomic concept for species, the classification of all living organisms from domain to species could be completed. Furthermore, this universal species concept could help provide a more equitable circumscription among all species, as well as aid in the unification of biologists and biology.
Starting Page	1331
Ending Page	1336
Page Count	6
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	36
Issue Number	11
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-09-25
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Taxonomy Phylogeny Speciation Phylogenomic Species concepts Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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