ArticleScientific reports2020
Satellite DNA-like repeats are dispersed throughout the genome of the Pacific oyster Crassostrea gigas carried by Helentron non-autonomous mobile elements.
Article in Scientific reports, 2020. 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, 22 citations in OpenAlex.
- The tiny germline chromosomes of Paramecium aurelia have an exceptionally high recombination rate and are capped by a new class of Helitrons.BMC biology · 2026Article
- Independent evolution of satellite DNA sequences in homologous sex chromosomes of Neotropical armored catfish (Harttia).Communications biology · 2025Article
- A diverse satellite DNA repertoire inFrontiers in molecular biosciences · 2025Article
- Long-read genome assembly of the insect model organismGenome research · 2024Article
- Dominance of transposable element-related satDNAs results in great complexity of "satDNA library" and invokes the extension towards "repetitive DNA library".Marine life science & technology · 2024Article
- Multiple and diversified transposon lineages contribute to early and recent bivalve genome evolution.BMC biology · 2023Article
- Article
- Review
- Review
- Satellitome Analysis of the Pacific OysterInternational journal of molecular sciences · 2021Article
- Article
- Satellite DNA-Mediated Gene Expression Regulation: Physiological and Evolutionary Implication.Progress in molecular and subcellular biology · 2021Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Satellite DNAs (satDNAs) are long arrays of tandem repeats typically located in heterochromatin and span the centromeres of eukaryotic chromosomes. Despite the wealth of knowledge about satDNAs, little is known about a fraction of short, satDNA-like arrays dispersed throughout the genome. Our survey of the Pacific oyster Crassostrea gigas sequenced genome revealed genome assembly replete with satDNA-like tandem repeats. We focused on the most abundant arrays, grouped according to sequence similarity into 13 clusters, and explored their flanking sequences. Structural analysis showed that arrays of all 13 clusters represent central repeats of 11 non-autonomous elements named Cg_HINE, which are classified into the Helentron superfamily of DNA transposons. Each of the described elements is formed by a unique combination of flanking sequences and satDNA-like central repeats, coming from one, exceptionally two clusters in a consecutive order. While some of the detected Cg_HINE elements are related according to sequence similarities in flanking and repetitive modules, others evidently arose in independent events. In addition, some of the Cg_HINE's central repeats are related to the classical C. gigas satDNA, interconnecting mobile elements and satDNAs. Genome-wide distribution of Cg_HINE implies non-autonomous Helentrons as a dynamic system prone to efficiently propagate tandem repeats in the C. gigas genome.
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