Karyotypic conservatism in samples of Characidium cf. zebra (Teleostei, Characiformes, Crenuchidae): physical mapping of ribosomal genes and natural triploidy [PDF]
Genetics and Molecular Biology, 2011 Basic and molecular cytogenetic analyses were performed in specimens of Characidium cf. zebra from five collection sites located throughout the Tietê, Paranapanema and Paraguay river basins.
Fausto Foresti +2 more
exaly +4 more sources
A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil [PDF]
Neotropical Ichthyology, 2022 A new species of Characidium is described from the tributaries of the upper and middle rio Doce basin, Minas Gerais, Brazil. The new species is distinguished from most congeners, except C. cricarense, C. hasemani, C. helmeri, C. kalunga, C. pterostictum,
Maridiesse Morais Lopes +2 more
exaly +3 more sources
The karyotypes and evolution of ZZ/ZW sex chromosomes in the genus Characidium (Characiformes, Crenuchidae) [PDF]
Comparative Cytogenetics, 2018 Available data on cytotaxonomy of the genus Characidium Reinhardt, 1867, which contains the greatest number of species in the Characidiinae (Crenuchidae), with 64 species widely distributed throughout the Neotropical region, were summarized and reviewed.
Marcela Baer Pucci +4 more
doaj +4 more sources
Dispersion of transposable elements and multigene families: Microstructural variation in Characidium (Characiformes: Crenuchidae) genomes [PDF]
Genetics and Molecular Biology, 2018 Eukaryotic genomes consist of several repetitive DNAs, including dispersed DNA sequences that move between chromosome sites, tandem repeats of DNA sequences, and multigene families.
Marcela Baer Pucci +3 more
doaj +2 more sources
Origin of B chromosomes in Characidium alipioi (Characiformes, Crenuchidae) and its relationship with supernumerary chromosomes in other Characidium species [PDF]
Comparative Cytogenetics, 2017 B chromosomes are apparently dispensable components found in the genomes of many species that are mainly composed of repetitive DNA sequences. Among the numerous questions concerning B chromosomes, the origin of these elements has been widely studied. To
Érica Alves Serrano +4 more
doaj +4 more sources
Chromosomal painting and ZW sex chromosomes differentiation in
BMC Genetics, 2011 Background The Characidium (a Neotropical fish group) have a conserved diploid number (2n = 50), but show remarkable differences among species and populations in relation to sex chromosome systems and location of nucleolus organizer regions (NOR).
Artoni Roberto F +10 more
doaj +2 more sources
Genetics and Molecular Biology, 2006 Cytogenetic studies were performed on two sympatric species of Characidium, C. gomesi and C. cf. zebra, from the Grande River basin, Minas Gerais State, Brazil.
Edson Luis Maistro
exaly +3 more sources
Papeis Avulsos De Zoologia, 2014 We report the rediscovery of the holotype of Characidium sanctjohanni Dahl, previously considered as lost in the ICN collections. We present counts, measurements and photographs, also offering a comparison between the holotype and the original ...
Henry Agudelo-Zamora +1 more
exaly +3 more sources
Fish, Cubatão River basin, Atlantic Rainforest stream, Paraná, Brazil [PDF]
Check List, 2009 The freshwater ichthyofauna of the Cubatão River basin was studied. This drainage belongs to the Atlantic rainforestbiome in Paraná state coastal region, southern Brazil.
Bastos, L. P., Abilhoa, V.
doaj +4 more sources
Neotropical Ichthyology, 2021 Characidium sp. aff. C. vidali is a species found in coastal streams in southeastern Brazil, which has karyotypic explanatory elements as the occurrence of microstructural variations, keeping the chromosomal macrostructure of the genus.
Maria Lígia Marques de Oliveira +4 more
doaj +1 more source