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The segregation ratio in waxy-heterozygous barley plants

Published online by Cambridge University Press:  14 April 2009

Ingrid Frykman  and
Bengt O. Bengtsson
Ingrid Frykman
Affiliation:
Department of Genetics, Lund University, Sölvegatan 29, S-223 62 Lund, Sweden
Bengt O. Bengtsson
Affiliation:
Department of Genetics, Lund University, Sölvegatan 29, S-223 62 Lund, Sweden
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Summary

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In seven experiments the segregation ratio in barley plants heterozygous for the waxy-gene was studied. Each experiment entailed the scoring of more than 40000 iodine-stained pollen grains from ten spikes. A significant over-representation of blue pollen grains was found in all experiments, with the segregation distortion (measured as a conversion force) ranging from 0·0063 to 0·0143. The distortion was unaffected by which of two mutations was used and which genetic background the plants had, but was stronger in 1988 than in 1987. Different statistical, methodological and biological explanations of the results are discussed.

Type
Research Article
Information
Genetics Research , Volume 60 , Issue 3 , December 1992 , pp. 159 - 164
Copyright
Copyright © Cambridge University Press 1992

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