Authors: Xueli An Qiaoyun Li Yueming Yan Yinghua Xiao SLK Hsam FJ Zeller
Publish Date: 2005/12/23
Volume: 146, Issue: 3, Pages: 193-201
Abstract
High and low molecular weight glutenin subunit HMWGS and LMWGS compositions of 270 European spelts 15 Iranian spelts and 25 bread wheat cultivars were analyzed by one and twodimensional gel electrophoresis The results revealed a total of 22 HMWGS alleles 4 at GluA1 11 at GluB1 and 7 at GluD1 and 32 allele combinations among the three Glu1 loci Two major genotypes of HMWGS 1 13+16 2+12 and 1 61+221 2+12 were found to occur in Central European spelt wheat cultivars and landraces at higher frequencies of 35 and 28 respectively The GluB1 locus displayed the greatest variation and genetic diversity index H was 069 whereas GluA1 and GluD1 showed H index values of 026 and 019 respectively The dendrogram constructed by HMW and LMW glutenin subunit bands revealed that European spelts form a separated cluster from common wheat suggesting that spelt and common wheat form distinct groups In addition all 15 Iranian spelt land variety accessions differed from European spelts and possessed similar HMWGS alleles to common wheat Because of a wider polymorphism Central European spelt wheats are an important genetic reserviour for improving common wheat quality
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