ArticleGenome biology and evolution2017
Origin and Spread of Spliceosomal Introns: Insights from the Fungal Clade Zymoseptoria.
Article in Genome biology and evolution, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Recurrent Modular Assembly Drives Independent Origins of Group II Introns Encoding LAGLIDADG Homing Endonucleases.Genome biology and evolution · 2026Article
- Interspecies hybridization as a route of accessory chromosome origin in fungal pathogens.mBio · 2026Article
- IMA fungus · 2025Article
- Article
- Analysis of Fungal Genomes Reveals Commonalities of Intron Gain or Loss and Functions in Intron-Poor Species.Molecular biology and evolution · 2021Article
- Internally Symmetrical Stwintrons and Related Canonical Introns in Hypoxylaceae Species.Journal of fungi (Basel, Switzerland) · 2021Article
- Whole-Genome Comparisons of Ergot Fungi Reveals the Divergence and Evolution of Species within the Genus Claviceps Are the Result of Varying Mechanisms Driving Genome Evolution and Host Range Expansion.Genome biology and evolution · 2021Article
- An Intron of Invertebrate Microphthalmia Transcription Factor Gene Is Evolved from a Longer Ancestral Sequence.Evolutionary bioinformatics online · 2021Article
- Genome compartmentalization predates species divergence in the plant pathogen genus Zymoseptoria.BMC genomics · 2020Article
- The Tc1-like elements with the spliceosomal introns in mollusk genomes.Molecular genetics and genomics : MGG · 2020Article
- Division of labour in a matrix, rather than phagocytosis or endosymbiosis, as a route for the origin of eukaryotic cells.Biology direct · 2020Article
- Interspecific Gene Exchange Introduces High Genetic Variability in Crop Pathogen.Genome biology and evolution · 2019Article
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3 authors.
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Abstract
Spliceosomal introns are a key feature of eukaryote genome architecture and have been proposed to originate from selfish group II introns from an endosymbiotic bacterium, that is, the ancestor of mitochondria. However, the mechanisms underlying the wide spread of spliceosomal introns across eukaryotic genomes have been obscure. In this study, we characterize the dynamic evolution of spliceosomal introns in the fungal genus Zymoseptoria at different evolutionary scales, that is, within a genome, among conspecific strains within species, and between different species. Within the genome, spliceosomal introns can proliferate in unrelated genes and intergenic regions. Among conspecific strains, spliceosomal introns undergo rapid turnover (gains and losses) and frequent sequence exchange between geographically distinct strains. Furthermore, spliceosomal introns could undergo introgression between distinct species, which can further promote intron invasion and proliferation. The dynamic invasion and proliferation processes of spliceosomal introns resemble the life cycles of mobile selfish (group I/II) introns, and these intron movements, at least in part, account for the dramatic processes of intron gain and intron loss during eukaryotic evolution.
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