All Stories

  1. The effect of acute exposure of yellowtail tetra fish Astyanax lacustris (Lütken, 1875) to the glyphosate-based herbicide Templo®
  2. Cytogenetic Analysis of Sturisoma barbatum (Loricariidae): New Inferences about Karyotypic Diversification of Sturisoma
  3. Erythrocyte alterations in specimens of Danio rerio caused by exposure to metformin
  4. Initial Steps of XY Sex Chromosome Differentiation in the Armored Catfish Hypostomus albopunctatus (Siluriformes: Loricariidae) Revealed by Heterochromatin Accumulation
  5. Hidden Diversity in Eigenmannia (Gymnotiformes: Sternopygidae) Populations from Upper Paraná and Paraguay Rivers
  6. Allozyme and cytogenetic analysis in two species of Hypostomus (Siluriformes: Loricariidae) from the Paraguai River basin, Brazil: occurrence of B microchromosome and intrapopulation heterochromatic polymorphism in H. boulengeri
  7. Chromosome Analysis of <i>Apteronotus ellisi</i> (Alonso de Arámburu 1957) (Gymnotiformes: Apteronotidae) from Upper Paraguay River Basin
  8. Cytogenetic and Molecular Characterization of Eigenmannia aff. desantanai (Gymnotiformes: Sternopygidae): A First Report of System of Sex Chromosomes ZW1W2/ZZ in Gymnotiformes
  9. NEOTROPICAL FRESHWATER FISHES
  10. Genotoxicity and cytotoxicity of textile production effluents, before and after Bacillus subitilis bioremediation, in Astyanax lacustris (Pisces, Characidae)
  11. Identification of cryptic species in allopatric populations of Hypostomus tietensis (Siluriformes: Loricariidae) through cytogenetics analyses
  12. Integrated analysis reveals a new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) in the lower Iguassu River, Brazil
  13. Chromosomal Diversity in Two Allopatric Populations of Farlowella hahni Meinken 1937 (Teleostei: Siluriformes): Cytogenetics and Cytochrome b Analyses
  14. Occurrence of euchromatic B chromosomes in natural populations of Moenkhausia bonita and M. forestii (Pisces: Characidae)
  15. Chromosomal mapping of repetitive sequences in Hyphessobrycon eques (Characiformes, Characidae): a special case of the spreading of 5S rDNA clusters in a genome
  16. A novel ZZ/ZW chromosome morphology type in Eigenmannia virescens (Gymnotiformes: Sternopygidae) from upper Paraná River basin
  17. Molecular Clock as Insight to Estimate the Evolutionary History and Times of Divergence for 10 Nominal Astyanax Species (Characiformes, Characidae): An Evolutionary Approach in Species with 2n = 36, 46, 48, and 50 Chromosomes
  18. First chromosomal analysis of Gymnorhamphichthys britskii: the remarkable lowest diploid value within the family Rhamphichthyidae (Gymnotiformes)
  19. Conserved number of U2 snDNA sites in Piabina argentea, Piabarchus stramineus and two Bryconamericus species (Characidae, Stevardiinae)
  20. Nucleolar organizer regions, 18S and 5S rDNA clusters in the chromosomes of Piabina argentea (Characiformes: Characidae)
  21. Comparative Cytogenetics of the Black Ghost Knifefish (Gymnotiformes: Apteronotidae): Evidence of Chromosomal Fusion and Pericentric Inversions in Karyotypes of TwoApteronotusSpecies
  22. Chromosomal characteristics of rDNA in a conserved karyotype of two Sternopygus macrurus (Gymnotiformes: Sternopygidae) populations from upper Paraná River basin
  23. Occurrence of Multiple Euchromatic B Microchromosomes in <i>Moenkhausia sanctaefilomenae</i> (Pisces, Characidae) from the Upper Paraná River Basin, Brazil
  24. First cytogenetic record for a species of Otothyropsis Ribeiro, Carvalho & Melo, 2005 (Loricariidae, Hypoptopomatinae)
  25. Cytogenetic analysis of two locariid species (Teleostei, Siluriformes) from Iguatemi River (Parana River drainage) in Brazil
  26. Cytogenetic and Morphometric Analysis in the Species Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Iguatemi River Basin, Brazil
  27. Cytogenetic analysis in three species from genusAstyanax(Pisces; Characiformes) with a new occurrence of B chromosome inAstyanax paranae
  28. Mutagenicity and recombinagenicity of Ocotea acutifolia (Lauraceae) aporphinoid alkaloids
  29. Assessment of the in vitro and in vivo genotoxicity of extracts and indole monoterpene alkaloid from the roots of Galianthe thalictroides (Rubiaceae)
  30. Cytogenetic analysis in three Bryconamericus species (Characiformes, Characidae): first description of the 5S rDNA-bearing chromosome pairs in the genus
  31. Cytogenetic Studies in Two Species of Genus Pimelodella (Teleostei, Siluriformes, Heptapteridae) from Iguatemi River Basin, Brazil
  32. Cytogenetic studies in species of family Loricariidae (Osteichthyes, Siluriformes) from Iguatemi river basin, Brazil. First cytogenetic report inFarlowella amazonum(Günther, 1864)
  33. Relative abundance and reproductive tactics of a Loricariidae species at Saraiva Lagoon, Ilha Grande National Park, MS-PR, Brazil
  34. Cytogenetic Studies Comparing Three Characidae Fish Species from the Iguatemi River Basin, Brazil
  35. System of Multiple Sex Chromosomes in Eigenmannia trilineata López & Castello, 1966 (Sternopygidae, Gymnotiformes) from Iguatemi River Basin, MS, Brazil
  36. Karyotype Analysis and Mapping of the 18S and 5S Ribosomal Genes in Astyanax fasciatus (Teleostei, Characiformes) from Paranapanema River Basin
  37. Mapping of the 18S and 5S ribosomal RNA genes in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the upper Paraná river basin, Brazil
  38. Chromosomal location of 5S and 18S rRNA genes in three sympatric cytotypes ofAstyanax scabripinnis(Characiformes, Characidae) from the Ivaí river basin, state of Paraná, Brazil
  39. Sympatric occurrence of three cytotypes and four morphological types of B chromosomes of Astyanax scabripinnis (Pisces, Characiformes) in the River Ivaí Basin, state of Paraná, Brazil
  40. Cytogenetic studies in two populations of Astyanax altiparanae (Pisces, Characiformes)
  41. Cytogenetic Characterization of Two Populations of Astyanax scabripinnis (Pisces, Characiformes) of the Ivaí Basin PR Brazil
  42. NADH-DIAPHORASE POSITIVE MYENTERIC NEURONS OF THE AGLANDULAR REGION OF THE STOMACH OF RATS (Rattus norvegicus) SUBJECTED TO DESNUTRITION