Phylogenetic characterisation of two novel Anaplasmataceae from Australian Ixodes holocyclus ticks: ‘Candidatus Neoehrlichia australis' and ‘Candidatus Neoehrlichia arcana'

Gofton, Alexander W.; Doggett, Stephen L.; Ratchford, Andrew; Ryan, Una; Irwin, Peter

doi:10.1099/ijsem.0.001344

Cited by 50 publications

(34 citation statements)

References 24 publications

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“…Neoehrlichia lotoris” and “ Ca . Neoehrlichia arcana” (97.8%–98.6%) in the 16S was expected as this is a highly conserved gene among bacteria (Gofton et al., ; Hodžić et al., ; Rar & Golovljova, ). A lower sequence similarity was observed with the groEL (89.7%–92%), and gltA (79.5%–79.9%) fragments as their sequences are more variable (Rar & Golovljova, ).…”

Section: Resultsmentioning

confidence: 98%

“…Members of the genus “ Candidatus Neoehrlichia” are widespread throughout Europe, Asia, Africa (Rar & Golovljova, ), Australia (Gofton et al., ) and North America (Yabsley, Murphy, Luttrell, Wilcox, Howerth et al., ). However, until the current study, no species belonging to this genus has been described in South America.…”

Section: Resultsmentioning

confidence: 99%

“…Neoehrlichia australis” and “ Ca . Neoehrlichia arcana.” The pathogenic capabilities of these bacteria and potential vertebrate hosts are yet to be determined (Gofton, Doggett, Ratchford, Ryan, & Irwin, ).…”

Section: Introductionmentioning

confidence: 99%

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“Candidatus Neoehrlichia chilensis” sp. nov.: Molecular detection and characterization of a novel Anaplasmataceae in wild rodents from Valdivia, southern Chile

Müller

Monti

Otth

et al. 2018

Transbound Emerg Dis

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This study aimed to screen wild rodents from southern Chile, for the presence of Anaplasmatacea. Spleen samples from 33 wild rodents trapped in Valdivia Province were screened by conventional PCR (cPCR), targeting the Anaplasmataceae 16S rRNA gene (16S). Positive samples were further evaluated, targeting a larger 16S fragment, groEL operon, and gltA gene, followed by sequencing and phylogenetic analysis. Anaplasmataceae DNA was detected in 15% (five of 33) of the tested rodents (Abrothrix sp. [four of five] and Mus musculus [one of five]). Analysis of sequenced products based on the 16S gene revealed high similarity with "Ca. Neoehrlichia mikurensis," "Ca. Neoehrlichia lotoris" and "Ca. Neoehrlichia arcana" (97.8%-98.6%). A lower similarity was observed with Candidatus Neoehrlichia groEL (89.7%-92%) and gltA (79.5%-79.9%) loci. According to the 16SrRNA, groEL and gltA phylogenetic analyses, two closely related genotypes of "Candidatus Neoehrlichia" spp. from Chile were observed, which clustered together in a separate clade from other species in this genus. This study suggests the presence of two genotypes of a novel species of "Candidatus Neoehrlichia," proposed as "Candidatus Neoehrlichia chilensis," circulating in rodents from Chile. This is the first report of "Ca. Neoehrlichia" species in rodents from America.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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“Candidatus Neoehrlichia chilensis” sp. nov.: Molecular detection and characterization of a novel Anaplasmataceae in wild rodents from Valdivia, southern Chile

Müller

Monti

Otth

et al. 2018

Transbound Emerg Dis

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“…FU98 (closely related to ‘ Ca. N. lotoris’ and found in red foxes, a badger and one Ixodes rugicollis tick from Europe) [6] , [7] ; and ‘ Candidatus Neoehrlichia australis’ and ‘ Candidatus Neoehrlichia arcane,’ both described in Ixodes holocyclus ticks from Australia [8] . None of them, except ‘ Ca.…”

Section: Basic Aspects Of the Bacteriummentioning

confidence: 98%

‘ Candidatus Neoehrlichia mikurensis’ in Europe

Portillo

Santibáñez

Palomar

et al. 2018

New Microbes and New Infections

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‘Candidatus Neoehrlichia mikurensis’ is an uncultured emerging bacterium that is provisionally included in the family Anaplasmataceae. In Europe, it is transmitted by Ixodes ricinus ticks. Rodents are the reservoirs. It is widely distributed in mammals (both wild and domestic) and birds. It causes an inflammatory disease in humans with underlying diseases, but the microorganism also affects immunocompetent individuals in which asymptomatic infection has been recognized. A high degree of suspicion and the use of molecular tools are needed for the correct diagnosis. Efforts to cultivate it and to investigate its pathogenesis should be a priority.

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“…nov., and Borrelia lanei sp. nov. from Ixodes pacificus ticks (182,183); three novel Anaplasmataceae from ticks (184,185); and the Gram-negative bacillus Coetzeea brasiliensis gen. nov., sp. nov., from mosquito larvae (186).…”

Section: Acinetobacter Taxon 20mentioning

confidence: 99%

An Update on the Novel Genera and Species and Revised Taxonomic Status of Bacterial Organisms Described in 2016 and 2017

Munson

Carroll

2019

J Clin Microbiol

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Recognition and acknowledgment of novel bacterial taxonomy and nomenclature revisions can impact clinical practice, disease epidemiology, and routine clinical microbiology laboratory operations. The Journal of Clinical Microbiology (JCM) herein presents its biannual report summarizing such changes published in the years 2016 and 2017, as published and added by the International Journal of Systematic and Evolutionary Microbiology. Noteworthy discussion centers around descriptions of novel Corynebacteriaceae and an anaerobic mycolic acid-producing bacterium in the suborder Corynebacterineae; revisions within the Propionibacterium, Clostridium, Borrelia, and Enterobacter genera; and a major reorganization of the family Enterobacteriaceae. JCM intends to sustain this series of reports as advancements in molecular genetics, whole-genome sequencing, and studies of the human microbiome continue to produce novel taxa and clearer understandings of bacterial relatedness.

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Phylogenetic characterisation of two novel Anaplasmataceae from Australian Ixodes holocyclus ticks: ‘Candidatus Neoehrlichia australis' and ‘Candidatus Neoehrlichia arcana'

Cited by 50 publications

References 24 publications

“Candidatus Neoehrlichia chilensis” sp. nov.: Molecular detection and characterization of a novel Anaplasmataceae in wild rodents from Valdivia, southern Chile

“Candidatus Neoehrlichia chilensis” sp. nov.: Molecular detection and characterization of a novel Anaplasmataceae in wild rodents from Valdivia, southern Chile

‘ Candidatus Neoehrlichia mikurensis’ in Europe

An Update on the Novel Genera and Species and Revised Taxonomic Status of Bacterial Organisms Described in 2016 and 2017

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