究了 2 4份太湖流域粳稻品种的 AFL P,根据 AFL P资料分析了太湖流域粳稻地方品种在推广品种中的渗透情况 ,结果表明大部分江、浙推广品种与地方品种间存在着相对较大的遗传距离 ,即地方品种在推广品种中的遗传组分较小 ,相反渗透进了较多的其他种质的遗传组分 ,这与推广品种的系谱分析结论一致 According to the AFL P data, we analyzed the infiltration of japonica rice landraces in the poplar cultivars in Taihu Lake region. The results showed that there was a relatively large difference between most of the poplar cultivars in Jiangsu and Zhejiang Provinces and the local cultivars Genetic distance, that is, the local breeds had smaller genetic components in the popularized varieties and instead penetrated more genetic components of other germplasms, which was consistent with the pedigree analysis of the popularized breeds