ArticleGenome biology and evolution2021
A Long-Term Conserved Satellite DNA That Remains Unexpanded in Several Genomes of Characiformes Fish Is Actively Transcribed.
Article in Genome biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed.
- Detailed re-analysis of satellitome mapping facilitated by the telomere-to-telomere (T2T) assembly of bread wheat genome.Plant molecular biology · 2026Article
- Reciprocal constraint couples architectural protein abundance and pericentromeric satellite expansion.bioRxiv : the preprint server for biology · 2026Article
- Cytogenomics of Myloplus tiete reveals conserved satellite DNAs since the Late Eocene in Serrasalmidae (Teleostei, Characiformes).Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2026Article
- The extraordinary satellitome diversity of freshwater crayfish: a driver of genome evolution.Mobile DNA · 2026Article
- Evolutionary trends of As51 satellite DNA and its colocalization with 45S ribosomal DNA: a conserved feature in Characiformes fishes.BMC genomics · 2026Article
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- Satellite DNA Genomics: The Ongoing Story.International journal of molecular sciences · 2025Review
- Exploring the Satellitome of the Pest Aphid Acyrthosiphon pisum (Hemiptera, Aphididae): Insights Into Genome Organization and Intraspecies Evolution.Genome biology and evolution · 2025Article
- Genomic landscape of repetitive DNAs in Neotropical electric fishes.Molecular genetics and genomics : MGG · 2025Article
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- Satellite DNAs and the evolution of the multiple XScientific reports · 2024Article
- Mapping of Repetitive Sequences inAnimals : an open access journal from MDPI · 2024Article
- Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species.BMC ecology and evolution · 2024Article
- Evolution of ancient satellite DNAs in extant alligators and caimans (Crocodylia, Reptilia).BMC biology · 2024Article
- Article
- Chromosomal Rearrangements and Satellite DNAs: Extensive Chromosome Reshuffling and the Evolution of Neo-Sex Chromosomes in the GenusInternational journal of molecular sciences · 2023Article
- Following the Pathway of W Chromosome Differentiation inBiology · 2023Article
- Cytogenetics Meets Genomics: Cytotaxonomy and Genomic Relationships among Color Variants of the Asian ArowanaInternational journal of molecular sciences · 2023Article
- Article
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10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Eukaryotic genomes contain large amounts of repetitive DNA sequences, such as tandemly repeated satellite DNAs (satDNAs). These sequences are highly dynamic and tend to be genus- or species-specific due to their particular evolutionary pathways, although there are few unusual cases of conserved satDNAs over long periods of time. Here, we used multiple approaches to reveal that an satDNA named CharSat01-52 originated in the last common ancestor of Characoidei fish, a superfamily within the Characiformes order, ∼140-78 Ma, whereas its nucleotide composition has remained considerably conserved in several taxa. We show that 14 distantly related species within Characoidei share the presence of this satDNA, which is highly amplified and clustered in subtelomeric regions in a single species (Characidium gomesi), while remained organized as small clusters in all the other species. Defying predictions of the molecular drive of satellite evolution, CharSat01-52 shows similar values of intra- and interspecific divergence. Although we did not provide evidence for a specific functional role of CharSat01-52, its transcriptional activity was demonstrated in different species. In addition, we identified short tandem arrays of CharSat01-52 embedded within single-molecule real-time long reads of Astyanax paranae (536 bp-3.1 kb) and A. mexicanus (501 bp-3.9 kb). Such arrays consisted of head-to-tail repeats and could be found interspersed with other sequences, inverted sequences, or neighbored by other satellites. Our results provide a detailed characterization of an old and conserved satDNA, challenging general predictions of satDNA evolution.
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