Phylogenetic Evidence Suggests That Strains of Aeromonas hydrophila subsp. dhakensis Belong to the Species Aeromonas aquariorum sp. nov.

Abstract

Three strains of Aeromonas hydrophila subspecies dhakensis, including the type strain, were subjected to phylogenetic analysis by sequencing gyrB, rpoD, and 16S rRNA genes and compared with all known Aeromonas species. The obtained gyrB and rpoD phylogenetic trees clearly suggested that these A. hydrophila subsp. dhakensis strains indeed belong to the species A. aquariorum. This finding may indicate that, at the time of "dhakensis" subspecies description, the strains were incorrectly identified as A. hydrophila by a polyphasic approach that included DNA-DNA hybridization.

Detection and characterization of class 1 integrons in Aeromonas spp. isolated from human diarrheic stool in Mexico

“…The genus is comprised of 19 different species. Some recently described species are not yet included in most classifications [1]. Members of this genus cause disease in a wide variety of invertebrates and vertebrates, including frogs, fish, birds and domestic animals.…”

Clinical Relevance of the Recently Described Species Aeromonas aquariorum

“…T [15], now considered a synonym of A. aquariorum [16]); and the type strain of A. caviae (CECT838 T ). All the strains produced either the A. caviae RFLP pattern or a slightly similar pattern with extra bands (Fig.…”

The Family Aeromonadaceae

“…In these studies, an extended description was given of A. hydrophila subsp. hydrophila (Chester 1901) Stanier 1943. Martínez-Murcia et al (2009 subsequently proposed to reclassify A. hydrophila subsp.…”