ArticleScientific reports2019
Integrative genetic map of repetitive DNA in the sole Solea senegalensis genome shows a Rex transposon located in a proto-sex chromosome.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Article
- Genomic Characterization ofAnimals : an open access journal from MDPI · 2022Article
- Integration of Maps Enables a Cytogenomics Analysis of the Complete Karyotype inInternational journal of molecular sciences · 2022Article
- Do Ty3/Gypsy Transposable Elements Play Preferential Roles in Sex Chromosome Differentiation?Life (Basel, Switzerland) · 2022Review
- Chromosome anchoring in Senegalese sole (Solea senegalensis) reveals sex-associated markers and genome rearrangements in flatfish.Scientific reports · 2021Article
- Cytogenomics Unveil Possible Transposable Elements Driving Rearrangements in Chromosomes 2 and 4 ofInternational journal of molecular sciences · 2021Article
- Article
- Development of whole-genome multiplex assays and construction of an integrated genetic map using SSR markers in Senegalese sole.Scientific reports · 2020Article
- Mobile Elements in Ray-Finned Fish Genomes.Life (Basel, Switzerland) · 2020Review
- The genomic structure of the highly-conserved dmrt1 gene in Solea senegalensis (Kaup, 1868) shows an unexpected intragenic duplication.PloS one · 2020Article
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9 authors.
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Abstract
Repetitive sequences play an essential role in the structural and functional evolution of the genome, particularly in the sexual chromosomes. The Senegalese sole (Solea senegalensis) is a valuable flatfish in aquaculture albeit few studies have addressed the mapping and characterization of repetitive DNA families. Here we analyzed the Simple Sequence Repeats (SSRs) and Transposable elements (TEs) content from fifty-seven BAC clones (spanning 7.9 Mb) of this species, located in chromosomes by multiple fluorescence in situ hybridization (m-BAC-FISH) technique. The SSR analysis revealed an average density of 675.1 loci per Mb and a high abundance (59.69%) of dinucleotide coverage was observed, being 'AC' the most abundant. An SSR-FISH analysis using eleven probes was also carried out and seven of the 11 probes yielded positive signals. 'AC' probes were present as large clusters in almost all chromosomes, supporting the bioinformatic analysis. Regarding TEs, DNA transposons (Class II) were the most abundant. In Class I, LINE elements were the most abundant and the hAT family was the most represented in Class II. Rex/Babar subfamily, observed in two BAC clones mapping to chromosome pair 1, showed the longest match. This chromosome pair has been recently reported as a putative sexual proto-chromosome in this species, highlighting the possible role of the Rex element in the evolution of this chromosome. In the Rex1 phylogenetic tree, the Senegalese sole Rex1 retrotransposon could be associated with one of the four major ancient lineages in fish genomes, in which it is included O. latipes.
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