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The effect of aneuploidy on meiotic crossing over and segregation in yeast

Published online by Cambridge University Press:  14 April 2009

P. Duck  and
A. P. James
P. Duck
Affiliation:
Division of Biological Sciences, National Research Council of Canada, Ottawa, CanadaK1A 0R6
A. P. James
Affiliation:
Division of Biological Sciences, National Research Council of Canada, Ottawa, CanadaK1A 0R6

Summary

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Meiotic chromosome associations in homothallic strains of S. cerevisiae were investigated by analysis of meiotic spore colonies and crossing over in +/+/− trisomics. The segregants of these aneuploids produce phenotypically distinguishable tetrasomic spore colonies. The data indicate that trivalent associations occur with a high frequency in trisomics of chromosome XVII and that the frequency of second division segregation is markedly increased over that found in the normal dipoid.

Type
Research Article
Information
Genetics Research , Volume 28 , Issue 1 , August 1976 , pp. 55 - 60
Copyright
Copyright © Cambridge University Press 1976

References

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