ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2026
Mixed modes of satellite DNA and transposable element evolution, which shape the repetitive landscape of air-breathing catfishes (Clarias).
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
Repetitive DNA is a major organization component of eukaryotic genomes; however, its evolutionary dynamics in teleosts remain insufficiently understood. Catfish of the family Clariidae provide a valuable model for studying the evolutionary process of repetitive DNA sequences, owing to their genomic diversity and complex chromosomal histories. Here, the evolutionary diversity of satellite DNA (satDNA), transposable elements (TEs), and microsatellites was investigated across multiple clariid catfish species using bioinformatic approaches that integrate genome-wide annotation of repetitive sequences with phylogenetic and chromosomal contexts. The results revealed distinct chromosome-specific patterns of satDNA evolution and demonstrated that, although certain satDNA loci in the chromosomes were conserved across species, their monomer sequences underwent substantial reshuffling over time, contrary to the expectation that the monomer sequences in homologous satDNA loci are conserved in related species. An ancient burst of TE activity was detected in the common ancestor of Clarias, followed by their recent species-specific proliferation, which is correlated with the overall TE and microsatellite abundances. Although closely related species generally exhibit similar repeatome profiles, notable deviations, such as the unique TE landscape of C. gariepinus and microsatellite distribution of C. batrachus, highlight lineage-specific evolutionary processes. These findings demonstrate the utility of Clarias catfish as a model for understanding repetitive sequence dynamics, genome plasticity, and chromosome evolution in vertebrates.
Indexed as
Identifiers
41886102What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.