Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis
- Autores
- Alonso, Maria Natalia; Malaga, Wladimir; Mc Neil, Michael; Jackson, Mary; Romano, Maria Isabel; Guilhot, Christophe; Santangelo, María De La Paz
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Targeted gene disruption by homologous recombination, has been widely used in mycobacterium species to understand the genetic basis of virulence and persistence in the host and to develop efficacious potential live vaccines. However, in slow growing pathogenic mycobacteria as Mycobacterium avium subsp paratuberculosis (MAP), these methods have been inefficient, in part due to the low frequency of legitimate homologous recombination. Another feature of mycobacteria is the low efficiency of transformation; therefore, some years ago, a phage-mediated transduction process was developed to introduce DNA into mycobacteria. This strategy is very efficient, due to the high rate of infection of the phage. This report describes a genetic method for the generation of targeted deletion mutations in MAP by allelic exchange using in vitro-generated specialized transducing mycobacteriophages, which does not require the critical packaging step and that could also be applied to other mycobacteria. We provide a detailed gene deletion methodology and demonstrate the use of this genetic system by deleting the mce4 operon of MAP. Finally, our results showed that the deletion of mce4 in MAP induces triacylglycerol accumulation; alter morphology and aggregation in liquid culture.
Instituto de Biotecnología
Fil: Alonso, Maria Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Malaga, Wladimir. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; Francia
Fil: Mc Neil, Michael. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados Unidos
Fil: Jackson, Mary. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados Unidos
Fil: Romano, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Guilhot, Christophe. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; Francia
Fil: Santangelo, María De La Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Fuente
- Research in Microbiology 171 (5–6) : 203-210 (July–September 2020)
- Materia
-
Mycobacterium
Mycobacterium avium subsp. paratuberculosis
Triglicéridos
Mutación
Genética
Triglycerides
Mutation
Genetics - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/7753
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Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosisAlonso, Maria NataliaMalaga, WladimirMc Neil, MichaelJackson, MaryRomano, Maria IsabelGuilhot, ChristopheSantangelo, María De La PazMycobacteriumMycobacterium avium subsp. paratuberculosisTriglicéridosMutaciónGenéticaTriglyceridesMutationGeneticsTargeted gene disruption by homologous recombination, has been widely used in mycobacterium species to understand the genetic basis of virulence and persistence in the host and to develop efficacious potential live vaccines. However, in slow growing pathogenic mycobacteria as Mycobacterium avium subsp paratuberculosis (MAP), these methods have been inefficient, in part due to the low frequency of legitimate homologous recombination. Another feature of mycobacteria is the low efficiency of transformation; therefore, some years ago, a phage-mediated transduction process was developed to introduce DNA into mycobacteria. This strategy is very efficient, due to the high rate of infection of the phage. This report describes a genetic method for the generation of targeted deletion mutations in MAP by allelic exchange using in vitro-generated specialized transducing mycobacteriophages, which does not require the critical packaging step and that could also be applied to other mycobacteria. We provide a detailed gene deletion methodology and demonstrate the use of this genetic system by deleting the mce4 operon of MAP. Finally, our results showed that the deletion of mce4 in MAP induces triacylglycerol accumulation; alter morphology and aggregation in liquid culture.Instituto de BiotecnologíaFil: Alonso, Maria Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Malaga, Wladimir. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; FranciaFil: Mc Neil, Michael. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados UnidosFil: Jackson, Mary. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados UnidosFil: Romano, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Guilhot, Christophe. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; FranciaFil: Santangelo, María De La Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2020-08-21T12:45:54Z2020-08-21T12:45:54Z2020-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/7753https://www.sciencedirect.com/science/article/pii/S09232508203003830923-2508https://doi.org/10.1016/j.resmic.2020.04.001Research in Microbiology 171 (5–6) : 203-210 (July–September 2020)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:48:36Zoai:localhost:20.500.12123/7753instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:48:36.994INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
title |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
spellingShingle |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis Alonso, Maria Natalia Mycobacterium Mycobacterium avium subsp. paratuberculosis Triglicéridos Mutación Genética Triglycerides Mutation Genetics |
title_short |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
title_full |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
title_fullStr |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
title_full_unstemmed |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
title_sort |
Efficient method for targeted gene disruption by homologous recombination in Mycobacterium avium subspecie paratuberculosis |
dc.creator.none.fl_str_mv |
Alonso, Maria Natalia Malaga, Wladimir Mc Neil, Michael Jackson, Mary Romano, Maria Isabel Guilhot, Christophe Santangelo, María De La Paz |
author |
Alonso, Maria Natalia |
author_facet |
Alonso, Maria Natalia Malaga, Wladimir Mc Neil, Michael Jackson, Mary Romano, Maria Isabel Guilhot, Christophe Santangelo, María De La Paz |
author_role |
author |
author2 |
Malaga, Wladimir Mc Neil, Michael Jackson, Mary Romano, Maria Isabel Guilhot, Christophe Santangelo, María De La Paz |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Mycobacterium Mycobacterium avium subsp. paratuberculosis Triglicéridos Mutación Genética Triglycerides Mutation Genetics |
topic |
Mycobacterium Mycobacterium avium subsp. paratuberculosis Triglicéridos Mutación Genética Triglycerides Mutation Genetics |
dc.description.none.fl_txt_mv |
Targeted gene disruption by homologous recombination, has been widely used in mycobacterium species to understand the genetic basis of virulence and persistence in the host and to develop efficacious potential live vaccines. However, in slow growing pathogenic mycobacteria as Mycobacterium avium subsp paratuberculosis (MAP), these methods have been inefficient, in part due to the low frequency of legitimate homologous recombination. Another feature of mycobacteria is the low efficiency of transformation; therefore, some years ago, a phage-mediated transduction process was developed to introduce DNA into mycobacteria. This strategy is very efficient, due to the high rate of infection of the phage. This report describes a genetic method for the generation of targeted deletion mutations in MAP by allelic exchange using in vitro-generated specialized transducing mycobacteriophages, which does not require the critical packaging step and that could also be applied to other mycobacteria. We provide a detailed gene deletion methodology and demonstrate the use of this genetic system by deleting the mce4 operon of MAP. Finally, our results showed that the deletion of mce4 in MAP induces triacylglycerol accumulation; alter morphology and aggregation in liquid culture. Instituto de Biotecnología Fil: Alonso, Maria Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Malaga, Wladimir. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; Francia Fil: Mc Neil, Michael. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados Unidos Fil: Jackson, Mary. Colorado State University. Department of Microbiology, Immunology and Pathology. Mycobacteria Research Laboratories; Estados Unidos Fil: Romano, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Guilhot, Christophe. University of Toulouse. Institut de Pharmacologie et de Biologie Structurale; Francia Fil: Santangelo, María De La Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Targeted gene disruption by homologous recombination, has been widely used in mycobacterium species to understand the genetic basis of virulence and persistence in the host and to develop efficacious potential live vaccines. However, in slow growing pathogenic mycobacteria as Mycobacterium avium subsp paratuberculosis (MAP), these methods have been inefficient, in part due to the low frequency of legitimate homologous recombination. Another feature of mycobacteria is the low efficiency of transformation; therefore, some years ago, a phage-mediated transduction process was developed to introduce DNA into mycobacteria. This strategy is very efficient, due to the high rate of infection of the phage. This report describes a genetic method for the generation of targeted deletion mutations in MAP by allelic exchange using in vitro-generated specialized transducing mycobacteriophages, which does not require the critical packaging step and that could also be applied to other mycobacteria. We provide a detailed gene deletion methodology and demonstrate the use of this genetic system by deleting the mce4 operon of MAP. Finally, our results showed that the deletion of mce4 in MAP induces triacylglycerol accumulation; alter morphology and aggregation in liquid culture. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-21T12:45:54Z 2020-08-21T12:45:54Z 2020-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/7753 https://www.sciencedirect.com/science/article/pii/S0923250820300383 0923-2508 https://doi.org/10.1016/j.resmic.2020.04.001 |
url |
http://hdl.handle.net/20.500.12123/7753 https://www.sciencedirect.com/science/article/pii/S0923250820300383 https://doi.org/10.1016/j.resmic.2020.04.001 |
identifier_str_mv |
0923-2508 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
Research in Microbiology 171 (5–6) : 203-210 (July–September 2020) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
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score |
12.623145 |