Institute of Evolution, University of Haifa, 31999, Haifa, Israel.
Theor Appl Genet. 1987 Oct;74(6):827-36. doi: 10.1007/BF00247564.
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.
研究了来自以色列 11 个野生二粒小麦群体的 231 个个体中，四倍体野生近缘植物小麦硬质小麦品种的高分子量麦谷蛋白亚基的多样性。结果表明：（a）Glu-A1 和 Glu-B1 这两个高分子量麦谷蛋白位点丰富，分别具有 11 和 15 个等位基因；（b）高分子量麦谷蛋白亚基的遗传变异在个体群体中经常受到严重限制，支持岛屿种群遗传模型；（c）在谷蛋白多样性与特定谷蛋白等位基因和物理（气候和土壤）和生物（植被）变量的频率之间发现了显著相关性。我们的结果表明：（a）野生二粒小麦中的至少部分谷蛋白多态性可以用环境因素来解释；（b）野生二粒小麦的胚乳含有许多在普通小麦中不存在的谷蛋白贮藏蛋白的等位变异体，可用于培育具有改良烘焙品质的品种。
