Control of lectins in Triticum aestivum and Aegilops umbellulata by homoeologous group 1 chromosomes |
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Authors: | H. M. Stinissen W. J. Peumans C. N. Law P. I. Payne |
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Affiliation: | (1) Laboratorium voor Plantenbiochemie, Kardinaal Mercierlaan 92, B-3030 Heverlee, Leuven, Belgium;(2) Plant Breeding Institute, Maris Lane, Trumpington, CB2 2LQ Cambridge, England |
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Abstract: | Summary Each of the three genomes in hexaploid wheat controls the expression of a specific lectin in the embryo. The chromosomes which control their synthesis were determined using nullisomic-tetrasomic and inter-varietal chromosome substitution lines of Chinese Spring. All three wheat lectins were shown to be controlled by the homoeologous group 1 chromosomes. Using ditelosomic lines of Chinese Spring the lectin genes could be localized on the long arms of chromosomes 1A and 1D. Inter-specific addition and substitution lines of Aegilops umbellulata chromosomes to Chinese Spring indicated that chromosome 1U, which is homoeologous to the group 1 chromosomes of wheat, controls lectin synthesis. |
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Keywords: | Aegilops umbellulata Genetics Lectin Triticum aestivum |
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