Metagenomic Characterization of Resistance Genes in Deception Island and Their Association with Mobile Genetic Elements
Santos, Andrés (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí")
Burgos, Felipe (Centro de Excelencia en Medicina Traslacional. Laboratorio de Biología Molecular Aplicada)
Martinez-Urtaza, Jaime (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Barrientos, Leticia (Universidad de La Frontera)

Data:	2022
Resum:	Antibiotic resistance genes (ARGs) are undergoing a remarkably rapid geographic expansion in various ecosystems, including pristine environments such as Antarctica. The study of ARGs and environmental resistance genes (ERGs) mechanisms could provide a better understanding of their origin, evolution, and dissemination in these pristine environments. Here, we describe the diversity of ARGs and ERGs and the importance of mobile genetic elements as a possible mechanism for the dissemination of resistance genes in Antarctica. We analyzed five soil metagenomes from Deception Island in Antarctica. Results showed that detected ARGs are associated with mechanisms such as antibiotic efflux, antibiotic inactivation, and target alteration. On the other hand, resistance to metals, surfactants, and aromatic hydrocarbons were the dominant ERGs. The taxonomy of ARGs showed that Pseudomonas, Psychrobacter, and Staphylococcus could be key taxa for studying antibiotic resistance and environmental resistance to stress in Deception Island. In addition, results showed that ARGs are mainly associated with phage-type mobile elements suggesting a potential role in their dissemination and prevalence. Finally, these results provide valuable information regarding the ARGs and ERGs in Deception Island including the potential contribution of mobile genetic elements to the spread of ARGs and ERGs in one of the least studied Antarctic ecosystems to date.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Antarctic soils ; Phages ; Plasmids ; Pristine environments ; Suelos antárticos ; Fagos ; Plásmidos ; Ambientes prístinos
Publicat a:	Microorganisms, Vol. 10, Issue 7 (July 2022) , art. 1432, ISSN 2076-2607

DOI: 10.3390/microorganisms10071432
PMID: 35889151

15 p, 2.7 MB

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