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High frequency of unusual high molecular weight glutenin alleles in 232 tetraploid durum wheat accessions (Triticum turgidum L. ssp. durum Desf)
Journal article   Peer reviewed

High frequency of unusual high molecular weight glutenin alleles in 232 tetraploid durum wheat accessions (Triticum turgidum L. ssp. durum Desf)

S-E Elfatih, Y. Peng, J. Ma, J. Peng, D. Sun and W. Ma
Cereal Research Communications, Vol.41(4), pp.583-592
2013
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Abstract

A total of 232 accessions of tetraploid species, durum wheat (Triticum turgidum L. ssp. durum Desf., 2n=4x=28, AABB) with a widespread origin of various countries were used in this study. Their high molecular weight glutenin subunit (HMW-GS) composition was identified by Matrix-assisted laser desorption/ionization time-of-flight Mass Spectrometry (MALDI-TOF-MS). Among all accessions analyzed, 194 were homogeneous for HMW-GS, 38 were heterogeneous, and 62 possessed unusual or new subunits. The results revealed a total of 43 alleles, including 5 at Glu-A1 and 38 at Glu-B1, resulting in 60 different allele combinations. The Glu-B1 locus displayed higher variation compared with Glu-A1. Glu-A1c (55.2%) and Glu-B1aj (17.7%) were the most frequent alleles at Glu-A1 and Glu-B1, respectively. Two allele types (“null” and 1) at the Glu-A1 locus and three allele types (7OE + 8, 14+15, 8) at the Glu-B1 locus appeared to be the common types in the 232 accessions. A total of 23 new alleles represented by unusual subunits were detected at the Glu-A1 and the Glu-B1 locus.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.85 Food Science & Technology
3.85.99 Cereal Starch Properties
Web Of Science research areas
Agronomy
ESI research areas
Agricultural Sciences
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