Abstract
Nearly terminal sites of Feulgen achromasia coincide with nearly terminal sites of silver banding in the short arms of the subtelocentric pair of chromosomes ofA. cepa. Autoradiographic silver grains after in situ rRNA/DNA hybridization cover a more extended area at this site, thereby giving the molecular basis for the staining results. From these staining results we conclude that the transcriptionally active rRNA genes of the standard nucleolar chromosomes are located in the secondary constriction.
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Herrn Prof. Dr.G. M. Hoffmann zum 60. Geburtstag gewidmet.
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Burger, EC., Knälmann, M. Localization of ribosomal gene sites in the standard nucleolar chromosomes ofAllium cepa . Pl Syst Evol 142, 117–122 (1983). https://doi.org/10.1007/BF00989607
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DOI: https://doi.org/10.1007/BF00989607