ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2015
Transposable elements and early evolution of sex chromosomes in fish.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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54 citing papers in PubMed, 96 citations in OpenAlex.
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- Transposons drove the evolution of a male sex-determining gene from a female gene with deep introgression across cichlids.Science advances · 2026Article
- Genome-Wide Characterization of Sex-Linked Regions in the Sangzhi Horned Toad (Boulenophrys sangzhiensis) Reveals Complex Sex Determination Mechanisms.Molecular ecology resources · 2026Article
- Gap-Free T2T assemblies of Micropterus salmoides identify a Y-Linked SV hotspot underlying sexual dimorphism.BMC genomics · 2025Article
- The Tree of Sex consortium: a global initiative for studying the evolution of reproduction in eukaryotes.Journal of evolutionary biology · 2025Article
- Independent evolution of satellite DNA sequences in homologous sex chromosomes of Neotropical armored catfish (Harttia).Communications biology · 2025Article
- Identification of the male-specific region on the guppy Y Chromosome from a haplotype-resolved assembly.Genome research · 2025Article
- Repetitive DNAs and differentiation of the ZZ/ZW sex chromosome system in the combtail fish Belontia hasselti (Perciformes: Osphronemidae).BMC ecology and evolution · 2025Article
- The role of unbalanced segmental duplication in sex chromosome evolution in Australian ridge-tailed goannas.Scientific reports · 2025Article
- Marine vs. terrestrial: links between the environment and the diversity of Copia retrotransposon in metazoans.Mobile DNA · 2025Article
- The master male sex determinant Gdf6Y of the turquoise killifish arose through allelic neofunctionalization.Nature communications · 2025Article
- Unveiling potential sex-determining genes and sex-specific markers in autotetraploid Carassius auratus.Science China. Life sciences · 2024Article
- Gonadal transcriptome sequencing reveals sexual dimorphism in expression profiling of sex-related genes in Asian arowana (Frontiers in genetics · 2024Article
- Recent Evolution of a Maternally Acting Sex-Determining Supergene in a Fly with Single-Sex Broods.Molecular biology and evolution · 2023Article
- Giant Sex Chromosomes inInsects · 2023Article
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- Analysis inFrontiers in genetics · 2023Article
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- Chromosome-scale assembly with a phased sex-determining region resolves features of early Z and W chromosome differentiation in a wild octoploid strawberry.G3 (Bethesda, Md.) · 2022Article
- Screening of Genes Related to Sex Determination and Differentiation in Mandarin Fish (International journal of molecular sciences · 2022Article
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Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In many organisms, the sex chromosome pair can be recognized due to heteromorphy; the Y and W chromosomes have often lost many genes due to the absence of recombination during meiosis and are frequently heterochromatic. Repetitive sequences are found at a high proportion on such heterochromatic sex chromosomes and the evolution and emergence of sex chromosomes has been connected to the dynamics of repeats and transposable elements. With an amazing plasticity of sex determination mechanisms and numerous instances of independent emergence of novel sex chromosomes, fish represent an excellent lineage to investigate the early stages of sex chromosome differentiation, where sex chromosomes often are homomorphic and not heterochromatic. We have analyzed the composition, distribution, and relative age of TEs from available sex chromosome sequences of seven teleost fish. We observed recent bursts of TEs and simple repeat accumulations around young sex determination loci. More strikingly, we detected transposable element (TE) amplifications not only on the sex determination regions of the Y and W sex chromosomes, but also on the corresponding regions of the X and Z chromosomes. In one species, we also clearly demonstrated that the observed TE-rich sex determination locus originated from a TE-poor genomic region, strengthening the link between TE accumulation and emergence of the sex determination locus. Altogether, our results highlight the role of TEs in the initial steps of differentiation and evolution of sex chromosomes.
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