Diversity of seven glutenin and secalin loci within triticale cultivars grown in Europe |
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| Authors: | N Amiour A Bouguennec C Marcoz P Sourdille M Bourgoin D Khelifi G Branlard |
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| Institution: | (1) INRA, U.M.R, Amélioration et santé des plantes, 234, avenue du Brézet, 63039 Clermont Ferrand, France;(2) Institut des Sciences de la Nature, Université Mentouri, 25000 Constantine, Algeria;(3) Groupement Experimentation Variétale et Etude des Semences (GEVES), France |
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| Abstract: | Analysis by SDS-PAGE of the majority of hexapoid triticales (× Triticosecale) (134 cultivars) grown in Europe allowed to identify 40 alleles at seven loci: Glu-A1, Glu-B1, Glu-R1, Gli-R2, Glu-B2, Glu-A3 and Glu-B3. Glu-B1 and Glu-B3 loci were the most polymorphic with 9 alleles at each locus. 95 allelic combinations were observed including 71 specific
for one cultivar each. On the basis of allelic frequencies at the seven loci, genetic distances between hexapoid triticales
grouped according to their origins revealed two clusters: winter triticales mostly originating from European germplasm and
spring triticales essentially of CIMMYT origin. Comparison of allele frequencies between hexaploid triticale cultivars and
a world collection of bread (Triticum aestivum) and durum (Triticum durum) wheat was investigated at Glu-A1 and Glu-B1: only a significant association was found for Glu-A1 alleles (γ2=2.26, p=0.36) between triticale and bread wheat.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | polymorphism rye storage proteins triticale wheat |
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