ArticleMolecular cytogenetics2012
The key role of repeated DNAs in sex chromosome evolution in two fish species with ZW sex chromosome system.
Article in Molecular cytogenetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 35 papers.
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
35 citing papers in PubMed, 48 citations in OpenAlex.
- Cytogenetics of Neotropical fishes: Patterns, advances and prospects after five decades of research.Genetics and molecular biology · 2026Article
- Investigating the evolution of large meiotic rings of multiple X and Y sex chromosomes in two Leptodactylus frog species (Anura, Leptodactylidae).Communications biology · 2025Article
- A variant W chromosome in Centromochlus heckelii (Siluriformes, Auchenipteridae) and the role of repeated DNA in its heteromorphism.Genetics and molecular biology · 2025Article
- Evolution of bird sex chromosomes: a cytogenomic approach in Palaeognathae species.BMC ecology and evolution · 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
- Article
- Satellitome analysis illuminates the evolution of ZW sex chromosomes of Triportheidae fishes (Teleostei: Characiformes).Chromosoma · 2022Article
- High Polymorphism in theAnimals : an open access journal from MDPI · 2022Article
- Article
- DNA methylation is involved in sexual differentiation and sex chromosome evolution in the dioecious plant garden asparagus.Horticulture research · 2021Article
- Cytogenetic analysis ofComparative cytogenetics · 2021Article
- Nuclear Integrants of Organellar DNA Contribute to Genome Structure and Evolution in Plants.International journal of molecular sciences · 2020Review
- Extensive Chromosomal Reorganization inInternational journal of molecular sciences · 2019Article
- Early Stages of XY Sex Chromosomes Differentiation in the FishCurrent genomics · 2018Article
- Insights into teleost sex determination from the Seriola dorsalis genome assembly.BMC genomics · 2018Article
- Review
- Discovery of the youngest sex chromosomes reveals first case of convergent co-option of ancestral autosomes in turtles.Chromosoma · 2017Article
- TheFrontiers in genetics · 2017Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite substantial progress, there are still several gaps in our knowledge about the process of sex chromosome differentiation. The degeneration of sex-specific chromosome in some species is well documented, but it is not clear if all species follow the same evolutionary pathway. The accumulation of repetitive DNA sequences, however, is a common feature. To better understand this involvement, fish species emerge as excellent models because they exhibit a wide variety of sex chromosome and sex determining systems. Besides, they have much younger sex chromosomes compared to higher vertebrates, making it possible to follow early steps of differentiation. Here, we analyzed the arrangement of 9 repetitive DNA sequences in the W chromosomes of 2 fish species, namely Leporinus reinhardti and Triportheus auritus, which present well-differentiated ZZ/ZW sex system, but differ in respect to the size of the sex-specific chromosome. Both W chromosomes are almost fully heterochromatic, with accumulation of repeated DNAs in their heterochromatic regions. We found that microsatellites have strongly accumulated on the large W chromosome of L. reinhardti but not on the reduced-size W chromosome of T. auritus and are therefore important players of the W chromosome expansion. The present data highlight that the evolution of the sex chromosomes can diverge even in the same type of sex system, with and without the degeneration of the specific-sex chromosome, being more dynamic than traditionally appreciated.
Identifiers
What 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.