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dc.contributor.author Autor Antelo Gutiérrez, Verónica Beatriz-
dc.contributor.author Autor Romero Brunetto, Héctor Gabriel-
dc.contributor.author Autor Batista, Silvia B.-
dc.contributor.filiacion Filiación Antelo Gutiérrez Verónica Beatriz, IIBCE-
dc.contributor.filiacion Filiación Romero Brunetto Héctor Gabriel, Universidad de la República (Uruguay). Facultad de Ciencias. Instituto de Biología-
dc.contributor.filiacion Filiación Batista Silvia B., IIBCE-
dc.date.accessioned Fecha ingreso 2019-12-05T15:38:20Z-
dc.date.available Fecha disponible 2019-12-05T15:38:20Z-
dc.date.issued Año de publicación 2015-
dc.description.abstract Resumen The presence and diversity of class 1 integrase gene (intI) sequences were evaluated by PCR using previously designed primers. Two clone libraries were constructed from DNA in sediment and microbial mat samples collected on Fildes Peninsula, King George Island, Antarctica.The libraries constructed from samples collected at Halfthree Point (HP) and Norma Cove (NC) contained 62 and 36 partial intI sequences, respectively. These sequences clustered into 10 different groups with <95% amino acid identity. Alignment of the deduced amino acid sequences with those from recognized integron-encoded integrases demonstrated the presence of highly conserved motifs characteristic of intI integrases. The HP library contained 42 nucleotide sequences identical to the class 1 intI gene found in a collection of trimethoprim-resistant (Tmpr) Antarctic Enterobacter sp. isolates, previously collected in the same area. These integrons, located on plasmids, had a genetic organization similar to that of pKOX105 from Klebsiella oxytoca. The 20 remaining HP and NC library sequences were similar to integrase sequences previously determined in a metagenomic analysis of environmental samples. We have demonstrated the presence of integron integrase genes in Antarctic sediment samples. About half these genes were very similar to the class 1 integrons found in humanassociated microbiota, suggesting that they originated from human-dominated ecosystems. The remaining integrase genes were probably associated with endemic bacteria.es
dc.format.extent Extensión 8 hes
dc.format.mimetype Formato application/pdfes
dc.identifier.citation Citación Antelo, V., Romero, H., Batista, S. "Detection of integron integrase genes on King George Island, Antarctica". Advances in Polar Science [en línea], 2015, 26 (1): 30-37. doi: 10.13679/j.advps.2015.1.00030es
dc.identifier.doi DOI 10.13679/j.advps.2015.1.00030-
dc.identifier.issn ISSN 1674-9928-
dc.identifier.uri URI https://hdl.handle.net/20.500.12008/22667-
dc.language.iso Idioma enes
dc.publisher Editorial Advances in Polar Sciencees
dc.relation.ispartof EN Advances in Polar Science, 2015, 26 (1): 30-37es
dc.rights Derechos Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)es
dc.rights.licence Licencia Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)es
dc.subject Palabras clave Integrasees
dc.subject Palabras clave Amplicon libraryes
dc.subject Palabras clave Maritime Antarcticaes
dc.title Título Detection of integron integrase genes on King George Island, Antarcticaes
dc.type Tipo de documento Artículoes
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