Abstract
Phylogenetically tetraploid species of the fish order Isospondyli generally have twice the mean ribosomal gene content as closely related species on the phylogenetically diploid level. Considerable intraspecific variation of rDNA amount was observed. These findings are discussed in view of the hypothesis that selective loss of ribosomal genes may account for diminishing genic activity in phylogenetically tetraploid organisms.
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Beçak, W., and Goissis, G. (1971). DNA and RNA content in diploid and tetraploid amphibians. Experientia 27345.
Beçak, W., and Pueyo, M. T. (1970). Gene regulation in the polyploid amphibian Odontophrynus americanus. Exp. Cell Res. 63448.
Dittes, H., Krone, W., Bross, K., Schmid, M., and Vogel, W. (1975). Biochemical and cytogenetic studies on the nucleolus organizing regions (NOR) of man. II. A family with the 15/21 translocation. Humangenetik 2647.
Engel, W., Schmidtke, J., and Wolf, U. (1975). Diploid-tetraploid relationships in teleostan fish. In Markert, C. L. (ed.), Isozymes, Vol. IV, Academic Press, New York, pp. 449–462.
Klose, J., Wolf, U., Hitzeroth, H., Ritter, H., Atkin, N. B., and Ohno, S. (1968). Duplication of the LDH gene loci by polyploidization in the fish order Clupeiformes. Humangenetik 5190.
Miller, L., and Brown, D. D. (1969). Variation in the activity of nucleolar organizers and their ribosomal gene content. Chromosoma 28430.
Munro, H. N., and Fleck, A. (1966). The determination of nucleic acids. In Methods of Biochemical Analysis, Vol. XIV, Interscience, New York, p. 113.
Ohno, S. (1970). The enormous diversity in genome sizes of fish as a reflection of nature's extensive experiments with gene duplication. Trans. Am. Fish. Soc. 99120.
Ohno, S. (1974). Cytogenetics of Chordates, Protochordates, Cyclostomes and Fishes, Gebrüder Bornträger, Berlin.
Ohno, S., and Atkin, N. B. (1966). Comparative DNA values and chromosome complements in eight species of fishes. Chromosoma 18455.
Ohno, S., Wolf, U., and Atkin, N. B. (1968). Evolution from fish to mammals by gene duplication. Hereditas 59169.
Pedersen, R. D. (1971). DNA content, ribosomal gene multiplicity and cell size in fish. J. Exp. Zool. 17765.
Philips, P. L., Wang, S. S., Weber, D. F., and Kleese, R. A. (1973). The nucleolus organizer region (NOR) of maize. Genetics 74212 (Suppl. 2).
Schmidtke, J., and Engel, W. (1975). Gene action in fish of tetraploid origin. I. Cellular and biochemical parameters in cyprinid fish. Biochem. Genet. 1345.
Schmidtke, J., and Engel, W. (1976). Gene action in fish of tetraploid origin. III. Ribosomal DNA amount in cyprinid fish. Biochem. Genet. 1419.
Schmidtke, J., Zenzes, M. T., Dittes, H., and Engel, W. (1975a). Regulation of cell size in fish of tetraploid origin. Nature 254426.
Schmidtke, J., Atkin, N. B., and Engel, W. (1975b). Gene action in fish of tetraploid origin. II. Cellular and biochemical parameters in clupeoid and salmonoid fish. Biochem. Genet. 13301.
Schmidtke, J., Beçak, W., and Engel, W. (1976). The reduction of genic activity in the tetraploid amphibian Odontophrynus americanus is not due to loss of ribosomal DNA. Experientia 3227.
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This work was supported by the Deutsche Forschungsgemeinschaft.
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Schmidtke, J., Zenzes, M.T., Weiler, C. et al. Gene action in fish of tetraploid origin. IV. Ribosomal DNA amount in clupeoid and salmonoid fish. Biochem Genet 14, 293–297 (1976). https://doi.org/10.1007/BF00484768
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DOI: https://doi.org/10.1007/BF00484768