Summary
Nucleolar organizing regions (NORs) ofNigella damacena were detected at the secondary constricted regions on 3 pairs of chromosomes by the silver staining method. The size of the NORs were found to be correlated with the size of the nucleoli.
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References
J. Moutshen, Med. nucl. Radiobiol. Lat.4, 397 (1967).
M. Hizume, S. Sato and A. Tanaka, Stain Technol.55, 87 (1980).
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We would like to thank Dr C.R. Parks (Department of Botany, The University of North Carolina at Chapel Hill, USA) for some helpful comments during manuscript preparation.
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Hizume, M., Tanaka, A. & Shigematsu, H. Detection of nucleolar organizing regions in the chromosomes ofNigella damacena. Experientia 38, 238–239 (1982). https://doi.org/10.1007/BF01945087
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DOI: https://doi.org/10.1007/BF01945087