Wheat storage proteins: diversity of HMW glutenin subunits in wild emmer from Israel - 1. Geographical patterns and ecological predictability

E. Nevo, P. I. Payne

Research output: Contribution to journalArticlepeer-review

Abstract

The diversity of HMW glutenin subunits in the tetraploid wild progenitor of wheat, Triticum turgidum var. dicoccoides was studied electrophoretically in 231 individuals representing 11 populations of wild emmer from Israel. The results show that (a) The two HMW glutenin loci, Glu-A1 and Glu-B1, are rich in variation, having 11 and 15 alleles, respectively, (b) Genetic variation in HMW glutenin subunits is often severely restricted in individual populations, supporting an island population genetic model, (c) Significant correlations were found between glutenin diversity and the frequencies of specific glutenin alleles and physical (climate and soil) and biotic (vegetation) variables. Our results suggest that: (a) at least part of the glutenin polymorphisms in wild emmer can be accounted for by environmental factors and (b) the endosperm of wild emmer contains many allelic variants of glutenin storage proteins that are not present in bread wheat and could be utilized in breeding varieties with improved bread-making qualities.

Original languageEnglish
Pages (from-to)827-836
Number of pages10
JournalTheoretical And Applied Genetics
Volume74
Issue number6
DOIs
StatePublished - Oct 1987

Keywords

  • Environmental influence
  • Genetic model
  • HMW glutenin polymorphism
  • Triticum turgidum var. dicoccoides
  • Wheat quality

ASJC Scopus subject areas

  • Genetics
  • Agronomy and Crop Science
  • Biotechnology

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