作　　者： ; ;

机构地区： 华南农业大学林学院

出　　处： 《华南农业大学学报》 1994年第2期118-123,共6页

摘　　要： 应用聚丙烯酰胺凝胶电泳技术，以种子胚乳为材料，对水杉原产地３个小群体的６种同工酶的遗传方式进行了研究，确定了由１６个基因座位编码的６５个等位基因。ＧＯＴ、ＭＤＨ、ＰＧＩ和ＥＳＴ分别受３个多态座位控制，α－ＡＭＹ、ＭＥ分别受２个多态座位控制，所有座位均为多态座位。各种同工酶的遗传表达基本稳定。 The inheritance of six polymorphic isozyme systems in Metasequoia glyp-tostroboides was studied by polyacrylamide gel electrophoresis.Analysis using haploidendosperm tissues of open-pollinated seeds collected from the original distributionrange demonstrated that allozyme variants in six enzymes were encoded by a totalof 65 structual genes in 16 loci,Among these isozyme systems,GOT,MDH,PGI andEST were controlled by three loci,respectively;α-AMY and ME were controlled bytwo loci.It was found that every locus was polymorphic.

关 键 词： 水杉 同工酶 遗传变异

领　　域： [农业科学] [农业科学]