Characterisation of the nucleolar organising regions during the cell cycle in two varieties of Petunia hybrida as visualised by fluorescence in situ hybridisation and silver staining

@article{Montijn1998CharacterisationOT,
  title={Characterisation of the nucleolar organising regions during the cell cycle in two varieties of Petunia hybrida as visualised by fluorescence in situ hybridisation and silver staining},
  author={M. B. Montijn and Rogier ten Hoopen and Paul F. Fransz and Johan H. L. Oud and Nanne Nanninga},
  journal={Chromosoma},
  year={1998},
  volume={107},
  pages={80-86}
}
The cell cycle-dependent spatial position, morphology and activity of the four nucleolar organising regions (NORs) of the Petunia hybrida cultivar Mitchell and the inbred line V26 have been analysed. Application of the silver staining technique and fluorescence in situ hybridisation on fixed root-tip material revealed that these interspecific hybrids possess four NORs of which only those of chromosome 2 are active during interphase, which implies that the NOR activity is not of parental origin… CONTINUE READING