玉米酯酶同工酶遗传距离与杂种优势的关系

Study on the Relationship between Genetic Distance of Esterase and Heterosis in Corn

对36个优良玉米自交系组配的300个杂交种的酯酶同工酶酶谱分析发现:互补酶带、杂种酶带的出现与否,不能准确预测杂种产量的高低;双亲酯酶同工酶的差异在一定程度上能反映杂种优势的大小。

Analysis on the esterase isozyme of the 300 cross combinations of 36 improved inbred lines of corn showed that the appearance of complementary isozyme bands and hybrids enzyme bands can't predict level of hybrid grain yield accurately. The differences of Esterase between parents can reflect heterosis level of hybrid in a certain degree.