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The use of double haploids for detecting linkage and pleiotropy between quantitatively varying characters in spring barley

Published online by Cambridge University Press:  27 March 2009

P. D. S. Caligari ,
W. Powell  and
J. L. Jinks
P. D. S. Caligari
Affiliation:
Scottish Crop Research Institute, Pentlandfield, Roslin, Midlothian, EH25 9RF, Scotland
W. Powell
Affiliation:
Scottish Crop Research Institute, Pentlandfield, Roslin, Midlothian, EH25 9RF, Scotland
J. L. Jinks
Affiliation:
Genetics Department, University of Birmingham, Birmingham, B15 2TT
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Summary

The relationships between pairs of characters are investigated using F1 and F2 derived doubled haploids as well as single seed descent lines from spring barley (Hordeum vulgare) crosses. It is shown that linkage disequilibrium and pleiotropy are factors affecting the relationship between characters in barley. In fact, the linkages found are in general in the coupling phase and pleiotropy is usually positive. The consequences of such relations for plant breeding are discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 106 , Issue 1 , February 1986 , pp. 75 - 80
Copyright
Copyright © Cambridge University Press 1986

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References

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