Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-23T01:03:14.283Z Has data issue: false hasContentIssue false
  • English
  • Français

Evidence of premeiotic control of chromosome pairing in Triticum aestivum

Published online by Cambridge University Press:  14 April 2009

M. W. Bayliss  and
Ralph Riley
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A genotype of wheat deficient for a pair of chromosomes stabilizing chiasma frequency against extremes of temperature was investigated to determine the position and duration of temperature sensitivity with respect to first metaphase of meiosis. Temperature changes over a critical range, followed by sequential sampling and measurement of chiasma frequency, showed a relatively short temperature-sensitive stage, the position and duration of which were dependent on the final temperature used. Comparison with meiotic timings made independently showed that the temperature-sensitive stage occurred in the premeiotic interphase. Euploid wheat was shown to have a stage in chiasma formation sensitive to high-temperature treatments at a similar time.

Comparison with the work of others showed that the sensitive stage lay between the last premeiotic mitosis and the start of DNA synthesis. This modification of chromosome pairing at a much earlier stage than has been previously demonstrated is further evidence that the processes of chromosome pairing and crossing-over are probably more complex than formerly envisaged.

Type
Research Article
Information
Genetics Research , Volume 20 , Issue 2 , October 1972 , pp. 201 - 212
Copyright
Copyright © Cambridge University Press 1972

References

REFERENCES

Abel, W. O. (1965). Über den Zeitpunkt des Crossing-over und der Chromosomeuperdoppling bei Sphaerocarpis. Zeitchrift fur Vererbungslehre 96, 228–233.Google Scholar
Bayliss, M. W. (1972). Ph.D. Thesis, University of Cambridge.Google Scholar
Bayliss, M. W. & Riley, R. (1972). An analysis of temperature-dependent asynapsis in Triticum aestivum. Genetical Research. (In the Press.)Google Scholar
Bennett, M. D., Chapman, V. & Riley, R. (1971). The duration of meiosis in pollen mother cells of wheat, rye and Triticale. Proceedings of the Royal Society of London B 178, 259–275.Google Scholar
Bennett, M. D. & Smith, J. M. (1972). The effect of polyploidy on meiotic duration and pollen development in cereal anthers. Proceedings of the Royal Society of London B 181, 81–107.Google Scholar
Buss, M. & Henderson, S. A. (1971). Induced bivalent interlocking and the course of meiotic chromosome synapsis. Nature 234, 243–246.Google Scholar
Driscoll, C. J. & Darvey, N. L. (1970). Chromosome pairing: effect of colchicine on an isochromosome. Science 169, 290–291.Google Scholar
Faberge, A. C. (1942). Homologous chromosome pairing: the physical problem. Journal of Genetics 43, 121–144.Google Scholar
Feldman, M. (1968). Regulation of somatic association in meiotic pairing in common wheat. Proceedings Third International Wheat Genetics Symposium, pp. 169–178.Google Scholar
Grell, R. (1969). Meiotic and somatic pairing. In Genetic Organisation vol. I (ed. Caspari, E. W. and Ravin, A. W.), pp. 361–492.New York: Academic Press.Google Scholar
Grell, R. & Chandley, A. C. (1965). Evidence bearing on the coincidence of exchange and DNA replication in the oöcyte of Drosophila melanogaster. Proceedings of the National Academy of Sciences of the U.S.A. 53, 1340–1346.CrossRefGoogle ScholarPubMed
Henderson, S. A. (1966). Time of chiasma formation in relation to the time of desoxyribo-nucleic acid synthesis. Nature 211, 1043–1047.Google Scholar
Henderson, S. A. (1962). Temperature and chiasma formation in Schistocerea gregaria. II. Cytological effects and the mechanism of heat induced univalence. Chromosoma 13, 437–463.Google Scholar
John, B. & Lewis, K. R. (1965). The meiotic system. Protoplasmatologia, Band VI. Springer-Verlag.Google Scholar
Lawrence, C. W. (1962 a). The effect of irradiation of different stages on microsporogenesis and chiasma frequency. Heredity 16, 83–89.Google Scholar
Lawrence, C. W. (1961 b). The effect of radiation on chiasma frequency in Tradescantia. Radiation Botany 1, 92–96.Google Scholar
Lamb, B. C. (1971). Some details and effects of the premeiotic control of recombination frequencies in Neurospora crassa. Genetical Research 18, 255–264.Google Scholar
Lu, B. C. (1969). Genetical recombination in Coprinus. I. The precise timing as revealed by temperature treatment experiments. Canadian Journal of Genetics and Cytology 11, 834–847.Google Scholar
Maguire, M. (1968). Evidence of the stage of heat induced cross-over effect in maize. Genetics 60, 353–362.CrossRefGoogle Scholar
McNelly-Ingle, C. A., Lamb, B. C. & Frost, L. C. (1966). The effect of temperature on recombination frequency in Neurospora crassa. Genetical Research 7, 169–183.Google Scholar
Moses, M. J. (1969). Structure and function of the synaptinemal complex. Genetics 61, 41–51.Google Scholar
Peacock, W. J. (1970). Replication, recombination and chiasmata in Goniaea australasiae (Orthoptera: Acrididae). Genetics 65, 593–617.Google Scholar
Stack, S. M. & Brown, W. V. (1969). Somatic pairing, reduction and recombination: an evolutionary hypothesis of meiosis. Nature 222, 1275–1276.Google Scholar
Stern, H. & Hotta, Y. (1969). DNA synthesis in relation to chromosome pairing and chiasma formation. Genetics 61, 27–39.Google ScholarPubMed