Reclassification of Aeromonas hydrophila subsp. dhakensis Huys et al. 2002 and Aeromonas aquariorum Martínez-Murcia et al. 2008 as Aeromonas dhakensis sp. nov. comb nov. and emendation of the species Aeromonas hydrophila

Previous studies indicate that Aeromonas aquariorum and Aeromonas hydrophila subsp. dhakensis are the same taxon and suggest that they should be synonymized. Using a polyphasic approach, the phenotypic and phylogenetic relationship of A. aquariorum with the 3 defined A. hydrophila subspecies (i.e. d...

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Bibliographic Details
Published in:Systematic and applied microbiology 2013-05, Vol.36 (3), p.171-176
Main Authors: Beaz-Hidalgo, Roxana, Martínez-Murcia, Antonio, Figueras, Maria José
Format: Article
Language:English
Subjects:
Aeromonas - classification
Aeromonas - genetics
Aeromonas aquariorum
Aeromonas hydrophila - classification
Aeromonas hydrophila subsp. dhakensis
Bacterial Proteins - genetics
Bacterial Typing Techniques
Diversity
Ecology
Genes, Essential
Phenotype
Phylogeny
Reclassification
RNA, Ribosomal, 16S - genetics
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Summary:Previous studies indicate that Aeromonas aquariorum and Aeromonas hydrophila subsp. dhakensis are the same taxon and suggest that they should be synonymized. Using a polyphasic approach, the phenotypic and phylogenetic relationship of A. aquariorum with the 3 defined A. hydrophila subspecies (i.e. dhakensis, hydrophila, ranae) was investigated. Phylogenetic trees derived from the 16S rRNA, rpoD or gyrB genes and a multilocus phylogenetic analysis (with the concatenated sequences of gyrB, rpoD, recA, dnaJ and gyrA) confirmed that both A. aquariorum and A. hydrophila subsp. dhakensis are a unique taxon, different from the other A. hydrophila subspecies, corroborating the phenotypic and DNA–DNA hybridization (DDH) results. A formal synonymization of A. aquariorum and A. hydrophila subsp. dhakensis and a reclassification of both as Aeromonas dhakensis sp. nov. comb nov. is therefore proposed.
ISSN:0723-2020
1618-0984
DOI:10.1016/j.syapm.2012.12.007