Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids
Abstract Bacterial conjugation is a major horizontal gene transfer mechanism. While the functions encoded by many conjugative plasmids have been intensively studied, the contribution of recipient chromosome-encoded genes remains largely unknown. Here, we analyzed the genetic requirement of recipient...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-11-01
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| Series: | Communications Biology |
| Online Access: | https://doi.org/10.1038/s42003-023-05534-2 |
| _version_ | 1797557242820558848 |
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| author | Nancy Allard Arianne Collette Josianne Paquette Sébastien Rodrigue Jean-Philippe Côté |
| author_facet | Nancy Allard Arianne Collette Josianne Paquette Sébastien Rodrigue Jean-Philippe Côté |
| author_sort | Nancy Allard |
| collection | DOAJ |
| description | Abstract Bacterial conjugation is a major horizontal gene transfer mechanism. While the functions encoded by many conjugative plasmids have been intensively studied, the contribution of recipient chromosome-encoded genes remains largely unknown. Here, we analyzed the genetic requirement of recipient cells for conjugation of IncI2 plasmid TP114, which was recently shown to transfer at high rates in the gut microbiota. We performed transfer assays with ~4,000 single-gene deletion mutants of Escherichia coli. When conjugation occurs on a solid medium, we observed that recipient genes impairing transfer rates were not associated with a specific cellular function. Conversely, transfer assays performed in broth were largely dependent on the lipopolysaccharide biosynthesis pathway. We further identified specific structures in lipopolysaccharides used as recipient cell surface receptors by PilV adhesins associated with the type IVb accessory pilus of TP114. Our strategy is applicable to study other mobile genetic elements and understand important host cell factors for their dissemination. |
| first_indexed | 2024-03-10T17:14:34Z |
| format | Article |
| id | doaj.art-d41d9ca7d9eb4c2ebd591024ebdf69b8 |
| institution | Directory Open Access Journal |
| issn | 2399-3642 |
| language | English |
| last_indexed | 2024-03-10T17:14:34Z |
| publishDate | 2023-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Biology |
| spelling | doaj.art-d41d9ca7d9eb4c2ebd591024ebdf69b82023-11-20T10:33:51ZengNature PortfolioCommunications Biology2399-36422023-11-016111110.1038/s42003-023-05534-2Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmidsNancy Allard0Arianne Collette1Josianne Paquette2Sébastien Rodrigue3Jean-Philippe Côté4Département de biologie, Faculté des sciences, Université de SherbrookeDépartement de biologie, Faculté des sciences, Université de SherbrookeDépartement de biologie, Faculté des sciences, Université de SherbrookeDépartement de biologie, Faculté des sciences, Université de SherbrookeDépartement de biologie, Faculté des sciences, Université de SherbrookeAbstract Bacterial conjugation is a major horizontal gene transfer mechanism. While the functions encoded by many conjugative plasmids have been intensively studied, the contribution of recipient chromosome-encoded genes remains largely unknown. Here, we analyzed the genetic requirement of recipient cells for conjugation of IncI2 plasmid TP114, which was recently shown to transfer at high rates in the gut microbiota. We performed transfer assays with ~4,000 single-gene deletion mutants of Escherichia coli. When conjugation occurs on a solid medium, we observed that recipient genes impairing transfer rates were not associated with a specific cellular function. Conversely, transfer assays performed in broth were largely dependent on the lipopolysaccharide biosynthesis pathway. We further identified specific structures in lipopolysaccharides used as recipient cell surface receptors by PilV adhesins associated with the type IVb accessory pilus of TP114. Our strategy is applicable to study other mobile genetic elements and understand important host cell factors for their dissemination.https://doi.org/10.1038/s42003-023-05534-2 |
| spellingShingle | Nancy Allard Arianne Collette Josianne Paquette Sébastien Rodrigue Jean-Philippe Côté Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids Communications Biology |
| title | Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids |
| title_full | Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids |
| title_fullStr | Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids |
| title_full_unstemmed | Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids |
| title_short | Systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of IncI2 plasmids |
| title_sort | systematic investigation of recipient cell genetic requirements reveals important surface receptors for conjugative transfer of inci2 plasmids |
| url | https://doi.org/10.1038/s42003-023-05534-2 |
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