ArticleMolecular genetics and genomics : MGG2003
Diversity of group II introns in the genome of Sinorhizobium meliloti strain 1021: splicing and mobility of RmInt1.
Article in Molecular genetics and genomics : MGG, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 14 citations in OpenAlex.
- Comparative genomic analysis ofApplied and environmental microbiology · 2026Article
- Systematic prediction of genes functionally associated with bacterial retrons and classification of the encoded tripartite systems.Nucleic acids research · 2020Article
- Contribution of Mobile Group II Introns toFrontiers in microbiology · 2018Review
- Inactivation of group II intron RmInt1 in the Sinorhizobium meliloti genome.Scientific reports · 2015Article
- In vitro characterization of the splicing efficiency and fidelity of the RmInt1 group II intron as a means of controlling the dispersion of its host mobile element.RNA (New York, N.Y.) · 2014Article
- Spread of the group II intron RmInt1 and its insertion sequence target sites in the plant endosymbiont Sinorhizobium meliloti.Mobile genetic elements · 2011Article
- Novel DNA sequences from natural strains of the nitrogen-fixing symbiotic bacterium Sinorhizobium meliloti.Applied and environmental microbiology · 2005Article
- The RmInt1 group II intron has two different retrohoming pathways for mobility using predominantly the nascent lagging strand at DNA replication forks for priming.Nucleic acids research · 2004Article
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4 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The number and diversity of known group II introns in eubacteria are continually increasing with the addition of new data from sequencing projects, but the significance of these introns in the evolution of bacterial genomes is unknown. We analyzed the main features of the group II introns present in the genome of the soil microorganism Sinorhizobium meliloti (strain 1021), the nitrogen-fixing symbiont of alfalfa, the DNA sequence of which was recently determined. Strain 1021 harbors three different classes of group II introns: RmInt1, of bacterial class D; SMb2147/SMb21167, which cluster within bacterial class C; and SMa1875, the phylogenetic class of which is uncertain. The group II introns SMb2147/SMb21167 and SMa1875 are widely distributed in S. meliloti, but are present in lower copy numbers than RmInt1. Strain 1021 harbors three copies of RmInt1, which is pSym-specific. Although RmInt1 is spliced in strain 1021, mobility assays suggested that, in contrast to other S. meliloti strains, the genetic background of strain 1021 does not support intron homing events.
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