Next Article in Journal
Requirement of the LtsA Protein for Formation of the Mycolic Acid-Containing Layer on the Cell Surface of Corynebacterium glutamicum
Next Article in Special Issue
Comparative Genomics across Three Ensifer Species Using a New Complete Genome Sequence of the Medicago Symbiont Sinorhizobium (Ensifer) meliloti WSM1022
Previous Article in Journal
Effects of Durum Wheat Cultivars with Different Degrees of FHB Susceptibility Grown under Different Meteorological Conditions on the Contamination of Regulated, Modified and Emerging Mycotoxins
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Microorganisms
Volume 9
Issue 2
10.3390/microorganisms9020407
microorganisms-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity

by
Riccardo Rosselli
1,2,
Nicola La Porta
3,4,
Rosella Muresu
5,
Piergiorgio Stevanato
6,
Giuseppe Concheri
6 and
Andrea Squartini
6,*
1
Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute of Sea Research, NL-1790 AB Den Burg, The Netherlands
2
Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, 03690 Alicante, Spain
3
Department of Sustainable Agrobiosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, 38098 San Michele all’Adige, Italy
4
MOUNTFOR Project Centre, European Forest Institute, 38098 San Michele all’Adige, Italy
5
Institute of Animal Production Systems in Mediterranean Environments-National Research Council, 07040 Sassari, Italy
6
Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, 35020 Legnaro, Italy
*
Author to whom correspondence should be addressed.
Microorganisms 2021, 9(2), 407; https://doi.org/10.3390/microorganisms9020407
Submission received: 4 November 2020 / Revised: 10 February 2021 / Accepted: 11 February 2021 / Published: 16 February 2021
(This article belongs to the Special Issue Genomics of Nitrogen-Fixing Plant Symbiotic Bacteria)
Browse Figures
Review Reports Versions Notes

Abstract

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.
Keywords: pangenome; core genome; rhizobiales; nitrogen-fixing symbiosis; nodulation genes; functional divergence; Rhizobium sullae pangenome; core genome; rhizobiales; nitrogen-fixing symbiosis; nodulation genes; functional divergence; Rhizobium sullae

Share and Cite

MDPI and ACS Style

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, 407. https://doi.org/10.3390/microorganisms9020407

AMA Style

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

Chicago/Turabian Style

Rosselli, Riccardo, Nicola La Porta, Rosella Muresu, Piergiorgio Stevanato, Giuseppe Concheri, and Andrea Squartini. 2021. "Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity" Microorganisms 9, no. 2: 407. https://doi.org/10.3390/microorganisms9020407

APA Style

Rosselli, R., La Porta, N., Muresu, R., Stevanato, P., Concheri, G., & Squartini, A. (2021). Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity. Microorganisms, 9(2), 407. https://doi.org/10.3390/microorganisms9020407

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop