Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity
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Título: | Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity |
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Autor/es: | Rosselli, Riccardo | La Porta, Nicola | Muresu, Rosella | Stevanato, Piergiorgio | Concheri, Giuseppe | Squartini, Andrea |
Grupo/s de investigación o GITE: | Microbiología Molecular |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Fisiología, Genética y Microbiología |
Palabras clave: | Pangenome | Core genome | Rhizobiales | Nitrogen-fixing symbiosis | Nodulation genes | Functional divergence | Rhizobium sullae |
Área/s de conocimiento: | Microbiología |
Fecha de publicación: | 16-feb-2021 |
Editor: | MDPI |
Cita bibliográfica: | Rosselli R, La Porta N, Muresu R, Stevanato P, Concheri G, Squartini A. Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity. Microorganisms. 2021; 9(2):407. https://doi.org/10.3390/microorganisms9020407 |
Resumen: | Pangenome analyses reveal major clues on evolutionary instances and critical genome core conservation. The order Rhizobiales encompasses several families with rather disparate ecological attitudes. Among them, Rhizobiaceae, Bradyrhizobiaceae, Phyllobacteriacreae and Xanthobacteriaceae, include members proficient in mutualistic symbioses with plants based on the bacterial conversion of N2 into ammonia (nitrogen-fixation). The pangenome of 12 nitrogen-fixing plant symbionts of the Rhizobiales was analyzed yielding total 37,364 loci, with a core genome constituting 700 genes. The percentage of core genes averaged 10.2% over single genomes, and between 5% to 7% were found to be plasmid-associated. The comparison between a representative reference genome and the core genome subset, showed the core genome highly enriched in genes for macromolecule metabolism, ribosomal constituents and overall translation machinery, while membrane/periplasm-associated genes, and transport domains resulted under-represented. The analysis of protein functions revealed that between 1.7% and 4.9% of core proteins could putatively have different functions. |
Patrocinador/es: | This work was supported in part by grant “Progetto di Ateneo PRAT CPDA154841/15” from the University of Padova. |
URI: | http://hdl.handle.net/10045/113403 |
ISSN: | 2076-2607 |
DOI: | 10.3390/microorganisms9020407 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/microorganisms9020407 |
Aparece en las colecciones: | INV - Microbiología Molecular - Artículos de Revistas |
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