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Comparative phylo-pangenomics reveals generalist lifestyles in representative Acinetobacter species and proposes candidate gene markers for species identification.
Almeida, Otávio Guilherme Gonçalves de; Furlan, João Pedro Rueda; Stehling, Eliana Guedes; De Martinis, Elaine Cristina Pereira.
Afiliação
  • Almeida OGG; Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil.
  • Furlan JPR; Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil.
  • Stehling EG; Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil.
  • De Martinis ECP; Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Brazil. Electronic address: edemarti@usp.br.
Gene ; 791: 145707, 2021 Jul 30.
Article em En | MEDLINE | ID: mdl-33979679
Acinetobacter species have the potential to invade and colonize immunocompromised patients, therefore being well-known as opportunistic pathogens. Among these bacteria, the species of the Acinetobacter calcoaceticus-Acinetobacter baumannii "complex" (Acb members) emerge as the main often isolated bacteria in clinical specimens. The unequivocal taxonomy is crucial to correctly identify these species and associated with comparative genomic analyses aids to understand their life-styles as well. In this study, all publicly available Acinetobacter species at the date of this study preparation were analyzed. The results revealed that the Acb members are in fact a complex when phenotypic methods are confronted, while for comparative and phylogenomics analyses this term is misleading, since they composed a monophyletic group instead. Nine best gene markers (response regulator, recJ, recG, phosphomannomutase, pepSY, monovalent cation/H + antiporter subunit D, mnmE, glnE, and bamA) were selected for identification of Acinetobacter species. Moreover, representative strains of each species were split according their isolation sources in the categories: environmental, human, insect and non-human vertebrate. Neither niche-specific genome signature nor niche-associated functional and pathogenic potential were associated with their isolation source, meaning it is not the main force acting on Acinetobacter adaptation in a given niche and corroborating that their ubiquitous distribution is a reflex of their generalist life-styles.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Especificidade da Espécie / Acinetobacter Tipo de estudo: Diagnostic_studies Idioma: En Revista: Gene Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Especificidade da Espécie / Acinetobacter Tipo de estudo: Diagnostic_studies Idioma: En Revista: Gene Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda