ArticleApplied and environmental microbiology2014
Replicon-dependent differentiation of symbiosis-related genes in Sinorhizobium strains nodulating Glycine max.
Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 29 citations in OpenAlex.
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- Lineage-Specific Rewiring of Core Pathways Predating Innovation of Legume Nodules Shapes Symbiotic Efficiency.mSystems · 2021Article
- Plasmids Related to the Symbiotic Nitrogen Fixation Are Not Only Cooperated Functionally but Also May Have Evolved over a Time Span in Family Rhizobiaceae.Genome biology and evolution · 2020Article
- Diverse Genomic Backgrounds Vs. Highly Conserved Symbiotic Genes in Sesbania-Nodulating Bacteria: Shaping of the Rhizobial Community by Host and Soil Properties.Microbial ecology · 2020Article
- Coordinated regulation of core and accessory genes in the multipartite genome of Sinorhizobium fredii.PLoS genetics · 2018Article
- Adaptive evolution of rhizobial symbiotic compatibility mediated by co-evolved insertion sequences.The ISME journal · 2018Article
- The Divided Bacterial Genome: Structure, Function, and Evolution.Microbiology and molecular biology reviews : MMBR · 2017Review
- Examination of prokaryotic multipartite genome evolution through experimental genome reduction.PLoS genetics · 2014Article
- Genetic divergence of bradyrhizobium strains nodulating soybeans as revealed by multilocus sequence analysis of genes inside and outside the symbiosis island.Applied and environmental microbiology · 2014Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In order to investigate the genetic differentiation of Sinorhizobium strains nodulating Glycine max and related microevolutionary mechanisms, three housekeeping genes (SMc00019, truA, and thrA) and 16 symbiosis-related genes on the chromosome (7 genes), pSymA (6 genes), and pSymB (3 genes) were analyzed. Five distinct species were identified among the test strains by calculating the average nucleotide identity (ANI) of SMc00019-truA-thrA: Sinorhizobium fredii, Sinorhizobium sojae, Sinorhizobium sp. I, Sinorhizobium sp. II, and Sinorhizobium sp. III. These species assignments were also supported by population genetics and phylogenetic analyses of housekeeping genes and symbiosis-related genes on the chromosome and pSymB. Different levels of genetic differentiation were observed among these species or different replicons. S. sojae was the most divergent from the other test species and was characterized by its low intraspecies diversity and limited geographic distribution. Intergenic recombination dominated the evolution of 19 genes from different replicons. Intraspecies recombination happened frequently in housekeeping genes and symbiosis-related genes on the chromosome and pSymB, whereas pSymA genes showed a clear pattern of lateral-transfer events between different species. Moreover, pSymA genes were characterized by a lower level of polymorphism and recombination than those on the chromosome and pSymB. Taken together, genes from different replicons of rhizobia might be involved in the establishment of symbiosis with legumes, but these symbiosis-related genes might have evolved differently according to their corresponding replicons.
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