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Substitution of rye chromosome 5R for its three wheat homoeologues*

Published online by Cambridge University Press:  14 April 2009

L. M. Bielig  and
C. J. Driscoll
L. M. Bielig
Affiliation:
School of Botany, University of New South Wales, Kensington, N.S.W., Australia
C. J. Driscoll
Affiliation:
School of Botany, University of New South Wales, Kensington, N.S.W., Australia
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Summary

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Chromosome 5R of Secale cereale var. Imperial has been substituted for chromosomes 5A, 5B and 5D of hexaploid wheat. There is evidence of compensation, in terms of vigour, in all substitution lines. Chromosome 5R rectifies the male sterility of nullisomics 5A and 5D; however, it is unable to circumvent the meiotic irregularity and male sterility of 5B-deficient stocks. Another instance of wheat-rye chromosome pairing, in the absence of chromosome 5B, is reported. The data reported here demonstrate that the long arm of 5R is the more essential arm and indicate that chromosome 5R is homoeologously related to the group 5 chromosomes of wheat.

Type
Research Article
Information
Genetics Research , Volume 16 , Issue 3 , December 1970 , pp. 317 - 323
Copyright
Copyright © Cambridge University Press 1970

References

REFERENCES

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