Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements.

@article{Gross2010VariabilityO1,
  title={Variability of 18S rDNA locus among Symphysodon fishes: chromosomal rearrangements.},
  author={Maria Cl{\'a}udia Gross and Carlos Henrique Schneider and Guilherme Targino Valente and Carla Martins and Eliana Feldberg},
  journal={Journal of fish biology},
  year={2010},
  volume={76 5},
  pages={
          1117-27
        }
}
Three species of cichlids belonging to the genus Symphysodon have demonstrated interspecific and intraspecific variation in nucleolus organizer regions (NOR) detected with silver nitrate. In order to understand the evolution of this marker in the genus, the structural variability of these sequences in mitotic chromosomes from Symphysodon aequifasciatus, Symphysodon discus and Symphysodon haraldi was investigated using both silver nitrate impregnation and hybridization of the 18S rRNA gene probe… CONTINUE READING
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