Results 1 to 10 of about 241 (110)
Historical Biogeography of Five Characidium Fish Species: Dispersal from the Amazon Paleobasin to Southeastern South America [PDF]
PLoS ONE, 2016 Characidium is a Neotropical fish genus. Its distribution ranges from eastern Panama to northern Argentina, and it is an important component of the Neotropical ichthyofauna present in the major rivers of South America. We here provide an approximation to
Chrystian C Sosa +1 more
exaly +3 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
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.
Orlando Moreira-Filho +2 more
exaly +5 more sources
Repetitive DNA Sequences and Evolution of ZZ/ZW Sex Chromosomes in Characidium (Teleostei: Characiformes). [PDF]
PLoS ONE, 2015 Characidium constitutes an interesting model for cytogenetic studies, since a large degree of karyotype variation has been detected in this group, like the presence/absence of sex and supernumerary chromosomes and variable distribution of repetitive ...
Priscilla Cardim Scacchetti +7 more
doaj +2 more sources
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
Fausto Foresti +2 more
exaly +5 more sources
Brazilian Archives of Biology and Technology, 2000 The feeding strategy of Characidium lanei and C. pterostictum was studied in the "Cabral" stream, a coastal stream of the Atlantic Forest, in southern Brazil. The samples were taken using electric fishing between March/95 and February/96.
Aranha José Marcelo R. +2 more
exaly +2 more sources
A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus [PDF]
Neotropical Ichthyology, 2023 A new miniature species of Characidium is described from the midde rio Guaporé, rio Madeira basin, Rondônia, Brazil. The new species can be readily distinguished from all congeners by the sexual dichromatism, with females having narrow dark bars on body ...
Angela Maria Zanata +2 more
doaj +1 more source
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
Acta Scientiarum: Biological Sciences, 2006 Neste trabalho são descritos aspectos da biologia da reprodução em Characidium lauroi e C. alipioi. A maturação das gônadas é dividida em quatro estádios e são descritos no ciclo anual.
Francisco Manoel de Souza Braga
doaj +1 more source
Anais da Academia Brasileira de Ciências, 2021 Characidium xavante was described from two tributaries of the Culuene River drainage, in the upper Xingu River basin. New samplings recorded the species for streams from the Kaaiapó River drainage (Teles Pires River drainage, upper Tapajós River basin ...
WEFERSON J. DA GRAÇA +4 more
doaj +1 more source