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Cytogenetical studies in wheat: II. An analysis of chlorophyll abnormalities in hexaploid wheat

Published online by Cambridge University Press:  14 April 2009

R. A. McIntosh  and
E. P. Baker
R. A. McIntosh
Affiliation:
Department of Agricultural Botany, University of Sydney, 2006, N.S.W., Australia
E. P. Baker
Affiliation:
Department of Agricultural Botany, University of Sydney, 2006, N.S.W., Australia
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Following segregation in two unrelated wheat crosses, albinism was associated with chromosome 7B nullisomy which permitted expression of mutant genes on chromosomes other than 7B. The frequencies of albino segregante differed in the two instances, being dependent upon the morphology of the 7B monosome, which was either telocentric 7BL or normal.

A viridis phenotype also segregated from one cross. Its expression was independent of 7B aneuploidy. Failure to obtain lines segregating only for green and viridis phenotypes was due to semi-lethality resulting from the presence of two 7B isochromosomes.

Type
Research Article
Information
Genetics Research , Volume 12 , Issue 1 , August 1968 , pp. 11 - 19
Copyright
Copyright © Cambridge University Press 1968

References

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