Analysis of the nucleolus organizer regions in 5 species of the genus Pimelodus ( Siluriformes , Pimelodidae ) , using AgNO 3 , CMA 3 and FISH with the 18 S rDNA probe

@inproceedings{Souza2007AnalysisOT,
  title={Analysis of the nucleolus organizer regions in 5 species of the genus Pimelodus ( Siluriformes , Pimelodidae ) , using AgNO 3 , CMA 3 and FISH with the 18 S rDNA probe},
  author={Lenice do Ros{\'a}rio de Souza and Ana Cl{\'a}udia Swarça and Ana L{\'u}cia Pereira Lima Alves Dias},
  year={2007}
}
A cytogenetic study was conducted on five species of the genus Pimelodus collected from various regions in Brazil: Pimelodus heraldoi, Pimelodus sp, Pimelodus argenteus, P. maculatus and P. mysteriosus. All the species had 2n=56 chromosomes. AgNOR was found in one pair of subtelocentric (ST) chromosomes with staining at the terminal position in all the five species. However, Pimelodus sp, P. heraldoi and P. maculatus showed NOR staining on long arm and P. argenteus and P. mysteriosus showed NOR… CONTINUE READING