Relationship between allelic variation of Glu-1 and Gli-1/Glu-3 prolamin loci and gluten strength in hexaploid wheat |
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Authors: | M. Rodriguez-Ouijano J. M. Carrillo |
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Affiliation: | (1) Unidad de Genética, E.T.S.I. Agrónomos, Universidad Politécnica de Madrid, Spain |
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Abstract: | Summary Allelic variation of prolamin loci was examined in the F2 from crosses between the hexaploid wheat varieties: Cajeme 71 , Yécora 70 , Ablaca , Anza , Pané 247 and Axona . Different allelic blocks for gliadins and LMW glutenin subunits were determined in Gli-1, Gli-2 and Glu-3 loci. A percentage of recombination of 1.5 ± 0.3 was determined between Gli-A1 and Glu-3 in the F2 progeny of Yécora 70 x Axona . A significant positive association was found between gluten strength, measured by SDS-sedimentation volume, and the prolamins coded by Anza Gli-D1/Glu-D3 loci and Yécora 70 Gli-A1/Glu-A3 loci. Interactions between non homeologous loci Glu-1 and Gli-1/Glu-3 were also found. |
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Keywords: | electrophoresis gluten strength prolamins Triticum aestivum variation wheat |
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