同一栽培种品种间的酯酶同工酶酶谱没有差异,同一染色体组的种电泳迁移率相同的酶带有较多的趋势,不同种的酶谱是不同的。根据酶谱分析亲缘关系,A染色体组与D染色体组比较接近,AD染色体组是A染色体组和D染色体组的结合。可以推测非洲草棉和雷蒙德氏棉在古大陆就已发生天然杂交和染色体加倍,形成四倍体棉(阔叶型)。通过棉属酯酶同工酶的分析,认为酯酶同工酶作为研究种间关系和分类的一项生化指标是可以的,但不是唯一的指标。 There was no difference in esterase isoenzyme patterns among the same cultivars. Enzyme bands with the same electrophoretic mobility in the same chromosome group tended to have more trends, and different zymograms were different. According to the analysis of genetic relationship, A chromosome group is close to D chromosome group, and AD chromosome group is the combination of A chromosome group and D chromosome group. It can be speculated that African cotton and Raymond cotton in the ancient continent has occurred in natural hybridization and chromosome doubling, the formation of tetraploid cotton (broadleaf type). Through the analysis of esterase isozymes, esterase isoenzyme is considered as a biochemical indicator to study interspecific relationship and classification, but it is not the only indicator.