由于小麦不同品种的种子含有不同的麦醇溶蛋白(gliadin),因此利用聚丙烯酰胺凝胶电泳可以分析比较不同品种的小麦。这种方法不受栽培条件的影响。本文分析了25个不同品种小麦的麦醇溶蛋白 SDS-聚丙烯酰胺凝胶电泳图谱,并对乙醇、脲提取的麦醇溶蛋白电泳图谱进行了比较,结果表明不同品种小麦麦醇溶蛋白电泳图谱差异明显,将疑胶进行光密度扫描,进行重叠比较,亦表明不同品种小麦麦醇溶蛋白组分有明显区别,结果说明,利用 SDS-聚丙烯酰胺凝胶电泳进行小麦品种鉴定是完全可行的。 Since different varieties of wheat contain different gliadins, different varieties of wheat can be analyzed and compared using polyacrylamide gel electrophoresis. This method is not affected by the cultivation conditions. In this paper, gliadin SDS-polyacrylamide gel electrophoresis patterns of 25 different varieties of wheat were analyzed, and the gliadin electrophoresis patterns of ethanol and urea were compared. The results showed that different varieties of wheat gliadin electrophoresis The difference of the spectra is obvious. Scanning optical density of suspect glue and comparing them by overlap, it also shows that there are obvious differences between the different types of wheat gliadin components. The result shows that wheat variety identification by SDS-polyacrylamide gel electrophoresis is completely feasible of.