Updated phylogeny of the genus Aeromonas
- 1 October 2006
- journal article
- Published by Microbiology Society in International Journal of Systematic and Evolutionary Microbiology
- Vol. 56 (10), 2481-2487
- https://doi.org/10.1099/ijs.0.64351-0
Abstract
Recent phylogenetic studies of the genus Aeromonas based on gyrB and rpoD gene sequences have improved the phylogeny based on 16S rRNA gene sequences first published in 1992, particularly in the ability to split closely related species. These studies did not include the recently described species Aeromonas simiae and Aeromonas molluscorum and only a single strain of Aeromonas culicicola was available for analysis at that time. In the present work, these Aeromonas species and newly isolated strains of A. culicicola were examined. Sequence analysis indicates that A. simiae and A. molluscorum belong to non-described phylogenetic lines of descent within this genus, which supports the original description of both species. The most closely related species are Aeromonas schubertii and Aeromonas encheleia, respectively, which is consistent with 16S rRNA gene sequencing results. However, while the five strains of A. molluscorum showed nucleotide differences in their gyrB and rpoD gene sequences, the only two known A. simiae strains exhibited identical gene sequences, suggesting that they are isolates of the same strain. On the basis of the rpoD gene sequence phylogeny, A. culicicola strains from the original description and new isolates from drinking water and ornamental fish clustered within the species Aeromonas veronii, suggesting inconsistencies with previous results. Other strains with previously controversial taxonomy and new isolates from other studies were included in this study in order to clarify their phylogenetic affiliation at the species level.Keywords
This publication has 32 references indexed in Scilit:
- Clinical relevance of Aeromonas sM503Reviews in Medical Microbiology, 2005
- First Record of the Rare Species Aeromonas culicicola from a Drinking Water SupplyApplied and Environmental Microbiology, 2005
- Polyphasic Taxonomic Study of “Aeromonas eucrenophila-like” Isolates from Clinical and Environmental SourcesSystematic and Applied Microbiology, 2004
- Extended method for discrimination of Aeromonas spp. by 16S rDNA RFLP analysis.International Journal of Systematic and Evolutionary Microbiology, 2000
- Aeromonas encheleia sp. nov., Isolated from European EelsInternational Journal of Systematic and Evolutionary Microbiology, 1995
- DNA Relatedness among Aeromonas allosaccharophila Strains and DNA Hybridization Groups of the Genus AeromonasInternational Journal of Systematic and Evolutionary Microbiology, 1995
- Rapid identification of Aeromonas species using 16S rDNA targeted oligonucleotide primers: a molecular approach based on screening of environmental isolatesJournal of Applied Bacteriology, 1994
- Aeromonas enteropelogenes and Aeromonas ichthiosmia Are Identical to Aeromonas trota and Aeromonas veronii, Respectively, as Revealed by Small-Subunit rRNA Sequence AnalysisInternational Journal of Systematic and Evolutionary Microbiology, 1993
- Identification ofAeromonas schubertiiandAeromonas jandaeiby using a polymerase chain reaction-probe testFEMS Microbiology Letters, 1993
- Proposal to Recognize the Family Aeromonadaceae fam. nov.International Journal of Systematic and Evolutionary Microbiology, 1986