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Chromosomal location of seed storage protein genes in the genome ofDasypyrum villosum (L.) Candargy |
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| Authors: | A. Blanco P. Resta R. Simeone S. Parmar P. R. Shewry P. Sabelli D. Lafiandra |
| Affiliation: | (1) Institute of Plant Breeding, University of Bari, Bari, Italy;(2) AFRC Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden, Hertfordshire, UK;(3) Department of Agricultural Sciences, University of Bristol AFRC Institute of Arable Crops Research, Long Ashton Research Station, Long Ashton, Bristol, UK;(4) Department of Agrobiology and Agrochemistry, University of Tuscia, Viterbo, Italy |
| Abstract: | Summary Genes coding for glutenin-like subunits and for several prolamin subunits with electrophoretic mobilities (lactate-PAGE) corresponding to those of omega- and gamma-gliadins of wheat were located inDasypyrum villosum chromosome1V. Genes controlling four gliadinlike subunits with electrophoretic mobilities corresponding to those of alpha- and gamma-gliadins were located on the short arm of chromosome6V and on the long arm of chromosome4V. N-terminal amino acid sequences of these four components were also determined and homology with alpha-type gliadins was demonstrated. The presence of genes coding for glutenin- and gliadin-like subunits on chromosomes1V and6V demonstrates homoeology between theD. villosum chromosomes1V and6V and the chromosomes of homoeologous groups 1 and 6 in wheat. It is likely that the additional locusGli-V3 on chromosome4V originated by translocation from theGli-V2 locus. |
| Keywords: | Gliadins Glutenins Gene location Dasypyrum villosum Wheat |
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