ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology1997
The X1X2Y sex chromosome system in the fish Hoplias malabaricus. I. G-, C- and chromosome replication banding.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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24 citing papers in PubMed.
- Chromosomal Rearrangements and Satellite DNAs: Extensive Chromosome Reshuffling and the Evolution of Neo-Sex Chromosomes in the GenusInternational journal of molecular sciences · 2023Article
- Abandoning the Isochore Theory Can Help Explain Genome Compositional Organization in Fish.International journal of molecular sciences · 2023Article
- GC and Repeats Profiling along Chromosomes-The Future of Fish Compositional Cytogenomics.Genes · 2020Article
- Highly Rearranged Karyotypes and Multiple Sex Chromosome Systems in Armored Catfishes from the GenusGenes · 2020Article
- Tracking the evolutionary pathway of sex chromosomes among fishes: characterizing the unique XX/XYChromosoma · 2018Article
- Sex Chromosome Evolution and Genomic Divergence in the FishFrontiers in genetics · 2018Article
- Review
- Integrated gene mapping and synteny studies give insights into the evolution of a sex proto-chromosome in Solea senegalensis.Chromosoma · 2017Article
- Cytogenetic characterization ofComparative cytogenetics · 2017Article
- Inferring Diversity and Evolution in Fish by Means of Integrative Molecular Cytogenetics.TheScientificWorldJournal · 2015Review
- Basic cytogenetics and physical mapping of 5S and 18S ribosomal genes in Hoplias malabaricus (Osteichthyes, Characiformes, Erythrinidae) from isolated natural lagoons: a conserved karyomorph along the Iguaçu river basin.Comparative cytogenetics · 2014Article
- XX/XO, a rare sex chromosome system in Potamotrygon freshwater stingray from the Amazon Basin, Brazil.Genetica · 2013Article
- Comparative cytogenetics of ten species of cichlid fishes (Teleostei, Cichlidae) from the Araguaia River system, Brazil, by conventional cytogenetic methods.Comparative cytogenetics · 2012Article
- Cross-species chromosome painting tracks the independent origin of multiple sex chromosomes in two cofamiliar Erythrinidae fishes.BMC evolutionary biology · 2011Article
- Comparative chromosome mapping of repetitive sequences. Implications for genomic evolution in the fish, Hoplias malabaricus.BMC genetics · 2009Article
- Article
- Article
- Evolutionary dynamics of autosomal-heterosomal rearrangements in a multiple-X chromosome system of tiger beetles (Cicindelidae).BMC evolutionary biology · 2007Article
- Article
- Improved fish lymphocyte culture for chromosome preparation.Genetica · 2001Article
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Abstract
Hoplias malabaricus, a widely distributed neotropical fish (Central America to Argentina), may represent a group of distinct species showing diversified cytotypes with respect to chromosome number, morphology and sex systems. One of these karyotypic forms is characterized by an X1X1X2X2/X1X2Y sex chromosome system, with 2n = 40 and 39 chromosomes in females and males respectively. Analyses with G-, C- and chromosome replication banding permitted a better characterization of the sex chromosomes in this cytotype. The Y chromosome, unique in males, resulted from a translocation event between two biarmed chromosomes: one similar to chromosome 6 (X1) and the other one similar to chromosome 20 (X2), the latter corresponding to a probable identification. On the basis of the observed banding patterns, the Y chromosome may represent a stable dicentric, with an inactive centromere interstitially located on its long arm. The results are also related to a specific satellite DNA subfamily, previously characterized in Hoplias malabaricus, which appears to be associated with the X1 chromosome.
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