Nucleolar organizer function in developing potato calli

Pijnacker, L.P. and Ferwerda, M.A. (1991) Nucleolar organizer function in developing potato calli. Theoretical and Applied Genetics, 82 (5). pp. 587-592.

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The number of transcriptionally active nucleolar organizer regions (NORs) of one monohaploid, one dihaploid and two tetraploids of Solanum tuberosum and one diploid S. phureja was established by the silver staining of metaphases in root meristems and in in vitro-cultured leaf explants. The maximum number of active NORs per cell was one per haploid set of chromosomes. One or more NORs could be inactive in cells of the tetraploid meristems and in non-polyploidized and polyploidized cells of the dihaploid and tetraploid explants. Inactivation was determined by genotype and tissue and could remain constant during in vitro culture

Item Type: Article
Author Affiliation: Department of Genetics, Centre of Biological Sciences, University of Groningen, PO Box 14, 9750 AA Haren, Netherlands
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Other Crops
Depositing User: Mr B Krishnamurthy
Date Deposited: 23 Apr 2012 08:43
Last Modified: 23 Apr 2012 08:43
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