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在蛋白质水平上对内蒙古不同生境条件下生长的扁蓿豆的遗传多样性进行了研究。结果表明，内蒙古地区扁蓿豆的蛋白质多样性程度较高；同一种或种下分类单位，由于材料来源不同所表现的基本蛋白图谱与地理分布有关，基本上与草地区划中的地段相吻合，因此在以后进行材料收集时应以地段为单位进行，而在地形单元和植被组合变化较大的地段需要配合地片进行；种子贮藏蛋白在不同的分类单位中表现出较高的同源性，因此可以做为进化标志，而不适用于扁蓿豆的种和品种的鉴定；形态变异与蛋白质的多样性并不相关。所有供试材料种在同一生境下，形态变异幅度较蛋白质大。
At the protein level, the genetic diversity of Medicago ruthenica grown in different habitats in Inner Mongolia was studied. The results showed that there was a high degree of protein diversity in Medicago sativa in Inner Mongolia. The same or sub-taxon, the basic protein map due to the different sources of the material was related to geographical distribution, basically consistent with the lot in the grassland division, Therefore, the material collection should be carried out in lots in the future, and in the areas where the topographic units and the vegetation composition vary greatly, the seed storage protein should show high homology in different taxonomic units, It can be used as an indicator of evolution, but not for the identification of species and varieties of Medicago; the morphological variation is not related to the diversity of proteins. All tested materials in the same habitat, the magnitude of morphological variation than protein.