The Study on Genetic Variation of Esterase Isozymes of Sichuan Major Wheat Cultivars

In this study, the esterase isozymes were analysed with polyacrylamide gel electrophoresis in the 40 wheat cultivars, which has once popularized above 6 67×10 4hm 2 per year in Sichuan during the last 50 years.The results shows as follows: 16 bands are seperated by electrophoresis and 7 of them were polymorphism.All of the studied cultivars has 9 identical bands, which are the common bands in Sichuan wheat cultivars. 7 different zymograms are observed in the 40 cultivars, among which type-1 distributed in 32 cultivars. So type-1 is the preponderant zymogram. The remainder 8 cultivars have 6 zymograms. Based on this result, it is concluded that esterase zymograms could be used as the fingerprint to iderntify some cultivars.