采用等位酶分析技术对新铁炮百合自交初代各株系的遗传学结构与遗传分化进行了初步研究 F-统计量分析结果表明 ,经过自交与选择 ,株系遗传纯合度明显增加 ,FIT 值F4较F3 增加 ,达0 .72 ,株系内的变异减少 ,株系间的分化增加 ,FST值增大 ,F4代株系间平均遗传距离较F3 代株系有一定增强 ,加强了株系间的分化 Allo-enzyme analysis was used to study the genetic structure and genetic differentiation of each line from the first generation of self-cross. The results of F-statistic analysis showed that the genetic homozygosity of the line increased significantly after selfing and selection, The FIT value F4 increased more than F3, reaching 0.72, the variation in the isolates was reduced, the differentiation between the isolates was increased and the FST value was increased. The average genetic distance between the F4 lines increased more than that of F3 lines Strain differentiation