Institute of Evolution, University of Haifa, Haifa, Israel.
Theor Appl Genet. 1983 Jan;64(2):123-32. doi: 10.1007/BF00272719.
Genetic diversity in the storage protein hordein encoded by two loci, Hor1 and Hor2, was analyzed electrophoretically in seeds from 123 individual plants of wild barley, Hordeum spontaneum, the progenitor of cultivated barley. The test was conducted in two topographically different 100 meter transects in Israel, each equally divided into basalt and terra rossa soil types. Altogether 15 Hor1 and 16 Hor2 phenotypes were detected; 7 phenotypes in Hor1 and 5 in Hor2 were common. Significant differentiation of both Hor1 and Hor2 phenotypes and their associations was found with soil type and topography. Likewise, significant correlations were found between hordein phenotypes and allozyme types detected in a previous study. Our results suggest that at least part of the hordein polymorphisms in wild barley is adaptive and selected by soil and topographic differences over very short distances.
利用电泳技术,对来自 123 株野生大麦(Hordeum spontaneum)个体种子中由两个基因座 Hor1 和 Hor2 编码的贮藏蛋白醇溶蛋白的遗传多样性进行了分析。该研究在以色列两个具有不同地形的 100 米横断面上进行,每个横断面上均等量分为玄武岩和红土两种土壤类型。共检测到 15 种 Hor1 表型和 16 种 Hor2 表型;Hor1 中有 7 种表型,Hor2 中有 5 种表型是共同的。Hor1 和 Hor2 表型及其相关性在土壤类型和地形上存在显著差异。同样,在先前的研究中检测到的醇溶蛋白表型与等位酶类型之间存在显著相关性。我们的研究结果表明,野生大麦中至少部分醇溶蛋白多态性是由土壤和地形差异在非常短的距离内选择和适应的。