Macgregor, H The nucleolus organizers of Plethodon and Aneides located by in situ nucleic acid hybridization with Xenopus 3H-ribosomal RNA. [electronic resource] - Chromosoma May 1979 - 271-80 p. digital Publication Type: Journal Article ISSN: 0009-5915 Standard No.: 10.1007/BF00331089 doi Subjects--Topical Terms: AnimalsCell NucleolusChromosome MappingDNA--geneticsGenesNucleic Acid HybridizationRNA, Ribosomal--geneticsCaudata--genetics