ArticlePloS one2016
Asexual Reproduction Does Not Apparently Increase the Rate of Chromosomal Evolution: Karyotype Stability in Diploid and Triploid Clonal Hybrid Fish (Cobitis, Cypriniformes, Teleostei).
Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 56 citations in OpenAlex.
- Unexpected variability of gametogenic pathways and interspecific chromosomal leakage in Pelophylax esculentus hybrids†.Biology of reproduction · 2026Article
- Sex chromosome turnover and structural genome divergence shape meiotic outcomes in hybridizing Cobitis.GigaScience · 2026Article
- The Influence of Genome Composition and Temperature on the Hatching Success and Development of the Offspring of AllotriploidInternational journal of molecular sciences · 2025Article
- Article
- Speciation by hybridization: the mind-boggling nature, educational, and research value of the largest group of unisexual vertebrates.Bioscience · 2025Article
- Chromosomal rDNA Distribution Patterns in ClonalGenes · 2025Article
- A cyclical switch of gametogenic pathways in hybrids depends on the ploidy level.Communications biology · 2024Article
- A Detailed Karyological Investigation of three Endemic Cobitis Linnaeus, 1758 Species (Teleostei, Cobitidae) in Anatolia, Türkiye.Cytogenetic and genome research · 2024Article
- Genetic and karyotype divergence between parents affect clonality and sterility in hybrids.eLife · 2023Article
- Genome Fractionation and Loss of Heterozygosity in Hybrids and Polyploids: Mechanisms, Consequences for Selection, and Link to Gene Function.Molecular biology and evolution · 2021Article
- Challenges and Costs of Asexuality: Variation in Premeiotic Genome Duplication in Gynogenetic Hybrids fromInternational journal of molecular sciences · 2021Article
- Sex chromosomes in meiotic, hemiclonal, clonal and polyploid hybrid vertebrates: along the 'extended speciation continuum'.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- Uniparental Genome Elimination in Australian Carp Gudgeons.Genome biology and evolution · 2021Article
- No evidence for accumulation of deleterious mutations and fitness degradation in clonal fish hybrids: Abandoning sex without regrets.Molecular ecology · 2020Article
- Parthenogenesis as a Solution to Hybrid Sterility: The Mechanistic Basis of Meiotic Distortions in Clonal and Sterile Hybrids.Genetics · 2020Article
- Using asexual vertebrates to study genome evolution and animal physiology: Banded (Evolutionary applications · 2020Article
- Cytogenetic Characterization of Seven Novel satDNA Markers in Two Species of Spined Loaches (Genes · 2020Article
- Cytogenetic mechanisms of unisexuality in rock lizards.Scientific reports · 2020Article
- The Legacy of Sexual Ancestors in Phenotypic Variability, Gene Expression, and Homoeolog Regulation of Asexual Hybrids and Polyploids.Molecular biology and evolution · 2019Article
- Clonal reproduction assured by sister chromosome pairing in dojo loach, a teleost fish.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2018Article
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Authors and funding
7 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Interspecific hybridization, polyploidization and transitions from sexuality to asexuality considerably affect organismal genomes. Especially the last mentioned process has been assumed to play a significant role in the initiation of chromosomal rearrangements, causing increased rates of karyotype evolution. We used cytogenetic analysis and molecular dating of cladogenetic events to compare the rate of changes of chromosome morphology and karyotype in asexually and sexually reproducing counterparts in European spined loach fish (Cobitis). We studied metaphases of three sexually reproducing species and their diploid and polyploid hybrid clones of different age of origin. The material includes artificial F1 hybrid strains, representatives of lineage originated in Holocene epoch, and also individuals of an oldest known age to date (roughly 0.37 MYA). Thereafter we applied GISH technique as a marker to differentiate parental chromosomal sets in hybrids. Although the sexual species accumulated remarkable chromosomal rearrangements after their speciation, we observed no differences in chromosome numbers and/or morphology among karyotypes of asexual hybrids. These hybrids possess chromosome sets originating from respective parental species with no cytogenetically detectable recombinations, suggesting their integrity even in a long term. The switch to asexual reproduction thus did not provoke any significant acceleration of the rate of chromosomal evolution in Cobitis. Asexual animals described in other case studies reproduce ameiotically, while Cobitis hybrids described here produce eggs likely through modified meiosis. Therefore, our findings indicate that the effect of asexuality on the rate of chromosomal change may be context-dependent rather than universal and related to particular type of asexual reproduction.
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