Abstract
Phase change from the juvenile to the adult stage in the ivy, Hedera helix, is characterized by an increase in nuclear size and DNA content, and a decrease in the proportion of heterochromatin per nucleus. Our scanning cytophotometric and electron microscopic data were compared with biochemical data, and interpreted as the expression of differential replication of respectively heterochromatin and repetitive DNA during transition from the juvenile to the adult phase. The possible causal relationships between genomic diversification and phenotypic changes are briefly discussed.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Alt, F. W., Kellems, R. E., Bertino, J. R., Sciiimke, R. T., 1978: Selective multiplication of dihydrofolate reductase genes in methotrexate-resistant variants of cultured murine cells. — J. Biol. Chem. 253, 1357–1370.
Britten, R. J., Davidson, E. H., 1969: Gene regulation for higher cells: a theory. — Science 165, 349–357.
Fox, D. P., 1969: Some characteristics of the cold hydrolysis technique for staining tissue by the Feulgen reactions. — J. Histoehem. Cytochem. 17, 266–272.
Frank, H., Renner, O., 1956: Ober Verjüngung bei Hedera helix L. Planta 47, 105–114.
Kessler, B., Reches, S., 1977: Structural and functional changes of chromosomal DNA during aging and phase change in plants. — Chrom. Today 6, 237–246.
Kuenzle, C. C., Bregnard, A., Hübscher, U., Ruch, F., 1978: Extra DNA in forebrain cortical neurons. — Experim. Cell Res. 113, 151–160.
Nagl, W., 1977: The DNA optimization model for speciation and cytodifferentiation. — Chrom. Today 6, 151–152.
Nagl, W., 1978a: Endopolyploidy and Polyteny in Differentiation and Evolution. —Amsterdam: North-Holland.
Nagl, W., 1978b: Evidence for ontogenetic genome diversification. — Arch. Genet. 51, 20–21.
Nagl, W., 1979: Condensed interphase chromatin in plant and animal cell nuclei: fundamental differences. — Pl. Syst. Evol., Suppl. 2, 247–260.
Rucker, W., 1972: Beziehungen zwischen Morphogenese und nuklearem DNS-Gehalt bei aseptischen Kulturen von Cymbidium nach Wuchsstoffbehandlung. — Z. Pflanzenphysiol. 67, 120–134.
Renkawitz-Pohl, R., 1978: Number of the repetitive euchromatic 5 S RNA genes in polyploid tissues of Drosophila hydei. — Chromosoma 66, 249–258.
Robbins, W. J., 1957: Gibberellic acid and the reversal of adult Hedera to a juvenile state. — Amer. J. Bot. 44, 743–746.
Schafer, A., Neumann, K.-H., 1978: The influence of gibberellic acid on reassociation kinetics of DNA of Daucus carota L. — Planta 143, 1–4.
Blaschke, J R., Neumann, K.-H., 1978: On DNA metabolism in carrot tissue cultures. — Planta 139, 97–101.
Scheuermann, W., 1978: Überprüfung der cytologischen Phänomene bei Vicia faba, die zu Pelc’s Hypothese einer „metabolischen“ DNA beitrugen. — Cytobiologie 17, 232–245.
Spurr, A. R., 1969: A low viscosity epoxy resin embedding medium for electron microscopy. — J. Ultrastruct. Res. 26, 31–43.
Stephen, J., 1978: Nucleolar DNA amplification in Ornithogalum endosperm. — Protoplasma 95, 31 36.
Strom, C. M., Moscona, M., Dorfman, A.. 1978: Amplification of DNA sequences during chicken cartilage and neural retina differentiation. — Proc. Nat. Acad. Sci. (U.S.) 75, 4451–4454.
Van Hof, J., 1965: Relationship between mitotic cycle duration, S period duration, and the average rate of DNA synthesis in root meristems of several plants. Experim. Cell Res. 39, 48–58.
Zuckerkandl, E., 1976: Gene control in eukaryotes and the c-value paradox. “Excess” DNA as an impediment to transcription of coding sequences. — J. Mol. Evol. 9, 73–104.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1979 Springer-Verlag
About this chapter
Cite this chapter
Schäffner, KH., Nagl, W. (1979). Differential DNA Replication Involved in Transition From Juvenile to Adult Phase in Hedera helix (Araliaceae). In: Nagl, W., Hemleben, V., Ehrendorfer, F. (eds) Genome and Chromatin: Organization, Evolution, Function. Plant Systematics and Evolution, vol 2. Springer, Vienna. https://doi.org/10.1007/978-3-7091-8556-8_8
Download citation
DOI: https://doi.org/10.1007/978-3-7091-8556-8_8
Publisher Name: Springer, Vienna
Print ISBN: 978-3-7091-8558-2
Online ISBN: 978-3-7091-8556-8
eBook Packages: Springer Book Archive