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Continuous variation of genic dosage in Phycomyces

Published online by Cambridge University Press:  14 April 2009

Juan Ramon Medina
Affiliation:
Departamento de Genetica, Facultad de Ciencias, Universidad de Sevilla, Spain
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Summary

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A computer simulation of the genetic analysis of the asexual life cycle of Phycomyces' heterokaryons has been carried out. We have studied experimentally the relationship between the nuclear proportion in heterokaryotic mycelia containing prototrophic and auxotrophic nuclei and their growth rates. We discuss possible evolutionary implications of heterokaryosis in coenocytic fungi and the genetic applications of the quantitative complementation technique.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1977

References

REFERENCES

Atwood, K. C. & Mikai, F. (1955). Nuclear distribution in conidia of Neurospora heterokaryons. Genetics 40, 438443.CrossRefGoogle ScholarPubMed
Bergman, K., Burke, P. V., Cerda-Olmedo, E., David, C. N., Delbrück, M., Foster, K. W., Goodell, E. W., Heisenberg, M., Meissner, M., Zalokar, M., Dennison, D. S. & Shropshire, J. R. (1969). Phycomyces. Bacteriological Reviews 33, 99157.Google Scholar
Burgeff, H. (1914). Untersuchungen über Variabilitat, Sexualitat und Erblichkeit bei Phycomyces nitents: Kunze. Flora (Jena) 107, 259316.Google Scholar
Cerda-Olmedo, E. & Medina, J. R. (1976). Quantitative measurement of genie interaction in Phycomyces phototropism. Submitted for publication.Google Scholar
Cerda-Olmedo, E. & Reau, P. (1970). Genetic classification of the lethal effects of various agents on heterokaryotic spores of Phycomyces. Mutation Research 9, 369384.Google Scholar
De la Guardia, M. D., Aragon, C. M. G., Murillo, F. J. & Cerda-Olmedo, E. (1971). A carotenogenic enzyme aggregate in Phycomyces: evidence from quantitative complementation. Proceedings of the National Academy of Sciences 68, 20122015.CrossRefGoogle Scholar
Heisenberg, M. & Cerda-Olmedo, E. (1968). Segregation of heterokaryons in the asexual cycle of Phycomyces. Molecular and General Genetics 102, 187195.Google Scholar
Johannes, H. (1950). Ein sekundäres Geschlechtsmerkmal des Igogamen Phycomyces blakesleeanus. Bgff. Biologisches Zentralblatt 69, 463468.Google Scholar
Klein, D. T. (1958). Randomness of nuclear distribution in conidia of Neurospora heterokaryons. Zeitschrift für Vererbungslehre 89, 323327.Google ScholarPubMed
Meissner, G. & Delbr&, M. (1968). Carotenes and retinal in Phycomyces mutants. Plant Physiology 43, 12791283.CrossRefGoogle ScholarPubMed
Ootaki, T. (1973). A new method for heterokaryon formation in Phycomyces. Molecular and General Genetics 121, 4956.Google Scholar
Pittenger, T. H. & Atwood, K. C. (1956). Stability of nuclear proportions during growth of Neurospora heterokaryons. Genetics 41, 227241.CrossRefGoogle ScholarPubMed
Reau, P. (1972). Uninucleate spores of Phycomyces. Planta 108, 153160.Google Scholar
Snider, P. J. (1963). Estimation of nuclear ratios directly from heterokaryotic mycelia in Schizophyllum. American Journal of Botany 30, 255262.Google Scholar