Fluorescencein situ hybridization with rDNA probes on chromosomes of two nucleolus organizer region phenotypes of a species ofEigenmannia (Pisces, Gymnotoidei, Sternopygidae)

@article{AlmeidaToledo1996FluorescenceinSH,
  title={Fluorescencein situ hybridization with rDNA probes on chromosomes of two nucleolus organizer region phenotypes of a species ofEigenmannia (Pisces, Gymnotoidei, Sternopygidae)},
  author={Lurdes Foresti de Almeida-Toledo and Ann Jacob Stocker and Fausto Foresti and Silvio de Almeida Toledo-Filho},
  journal={Chromosome Research},
  year={1996},
  volume={4},
  pages={301-305}
}
Nucleolus organizer regions (NORs) were analysed in two related and geographically close populations ofEigenmannia sp. 1 (Pisces, Gymnotoidei, Sternopygidae) using silver staining and fluorescencein situ hybridization (FISH). The two populations differed in their Ag-NOR phenotypes, displaying fixed differences in the NOR-bearing chromosome pairs. FISH with rDNA probes showed that these differences were due to the location of rDNA cistrons. This finding, showing fixed NOR differences between two… CONTINUE READING
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