ArticleCurrent genetics1992
Structure and evolution of myxomycete nuclear group I introns: a model for horizontal transfer by intron homing.
Article in Current genetics, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 50 citations in OpenAlex.
- Telomere-to-telomere characterization of rDNA chromosome in the myxomycete Didymium iridis.BMC molecular and cell biology · 2026Article
- A Phylogenetic Approach to Structural Variation in Organization of Nuclear Group I Introns and Their Ribozymes.Non-coding RNA · 2021Article
- Evolution of group I introns in Porifera: new evidence for intron mobility and implications for DNA barcoding.BMC evolutionary biology · 2017Article
- Nuclear group I introns in self-splicing and beyond.Mobile DNA · 2013Article
- Polyphyletic origin of the genus Physarum (Physarales, Myxomycetes) revealed by nuclear rDNA mini-chromosome analysis and group I intron synapomorphy.BMC evolutionary biology · 2012Article
- Article
- Evolution of Pleopsidium (lichenized Ascomycota) S943 group I introns and the phylogeography of an intron-encoded putative homing endonuclease.Journal of molecular evolution · 2007Article
- Multiple group I introns detected in the nuclear small subunit rDNA of the autosporic green alga Selenastrum capricornutum.Current genetics · 2004Article
- Characterization of rbcL group IA introns from two colonial volvocalean species (Chlorophyceae).Plant molecular biology · 1998Article
- Three different group I introns in the nuclear large subunit ribosomal DNA of the amoeboflagellate Naegleria.Nucleic acids research · 1998Article
- Identification of group-I introns in the 28s rDNA of the entomopathogenic fungus Beauveria brongniartii.Current genetics · 1994Article
- Nucleolar introns from Physarum flavicomum contain insertion elements that may explain how mobile group I introns gained their open reading frames.Nucleic acids research · 1994Article
- Group I introns are inherited through common ancestry in the nuclear-encoded rRNA of Zygnematales (Charophyceae).Proceedings of the National Academy of Sciences of the United States of America · 1994Article
- Discovery of group I introns in the nuclear small subunit ribosomal RNA genes of Acanthamoeba.Nucleic acids research · 1994Article
- Correlation between the presence of a self-splicing intron in the 25S rDNA of C.albicans and strains susceptibility to 5-fluorocytosine.Nucleic acids research · 1993Article
- A mobile group I intron from Physarum polycephalum can insert itself and induce point mutations in the nuclear ribosomal DNA of saccharomyces cerevisiae.Molecular and cellular biology · 1993Article
- Extrachromosomal ribosomal DNA of Didymium iridis: sequence analysis of the large subunit ribosomal RNA gene and sub-telomeric region.Current genetics · 1992Article
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3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We have examined five nuclear group I introns, located at three different positions in the large subunit ribosomal RNA (LSU rRNA) gene of the two myxomycete species, Didymium iridis and Physarum polycephalum. Structural models of intron RNAs, including secondary and tertiary interactions, are proposed. This analysis revealed that the Physarum intron 2 contains an unusual core region that lacks the P8 segment, as well as several of the base-triples known to be conserved among group I introns. Structural and evolutionary comparisons suggest that the corresponding introns 1 and 2 were present in a common ancestor of Didymium and Physarum, and that the five introns in LSU rRNA genes of these myxomycetes were acquired in three different events. Evolutionary relationships, inferred from the sequence analysis of several different nuclear group I introns and the ribosomal RNA genes of the intron-harbouring organisms, strongly support horizontal transfer of introns in the course of evolution. We propose a model that may explain how myxomycetes in natural environments obtained their nuclear group I introns.
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