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本文利用ＡＦＬＰ分子标记技术研究了１７个玉米优良自交系的遗传多样性，４个ＡＦＬＰ引物 组合分别扩增出３０、３０、４４、４１条多态性带，平均每个引物组合扩出３６．２５条带，４个引物组合共扩增 出１４５条带，每一个引物组合都可将１７个自交系完全分开。利用ＡＦＬＰ数据、进行聚类分析，将１７个 优良自交系聚力６群，结果表明，用ＡＦＬＰ标记进行玉米优势群划分与自交系系谱亲缘关系基本一 致，ＡＦＬＰ技术可以用于玉米自交系的遗传多样性研究和优势群划分。
In this study, AFLP molecular markers were used to study the genetic diversity of 17 elite inbred lines. Four AFLP primer combinations amplified 30, 30, 44 and 41 polymorphic bands, respectively, with an average of 36 .25 bands, a total of 145 bands were amplified by 4 primer combinations, and 17 inbred lines could be completely separated for each primer combination. AFLP data were used for cluster analysis and clustered in 17 elite inbred lines. The results showed that AFLP markers were closely related to the pedigree of maize dominant group. AFLP technique could be used for selfing in maize Department of genetic diversity and the division of dominant group.