中文摘要：

比较差别在内部 ribosomal 脱氧核糖核酸的翻译空间(它的) Melampsora larici-populina，在从中国的 isolates 之间并且从另外的国家孤立，这研究基于 11 调查了它的序列和它的 polygenetic 树孤立那在中国的不同部分从 5 赛跑被收集。结果显示在 ITS 之中没有差别 11 的序列从中国孤立。它的顺序从中国孤立与的是更同类的与法国，德国，和加拿大相比从英国孤立。Intersimple 顺序重复(ISSR ) 标记也被用来学习 Melampsora larici-populina 的基因部门，并且结果证明 11 测试了孤立能被划分成西方的人口和北人口。赛跑 C2 的基因差异索引与赛跑 C4， C3，和 C1 的显著地不同，并且没有重要差别在另外的赛跑之中被观察。赛跑的致病力分割不能与他们的基因部门加音，除了赛跑 C2。它的区域是保守的，并且它的顺序为学习在赛跑之中存在的差别是不合适的。ISSR 标记能在中国被用于 intraspecies 人口学习，和 Melampsora larici-populina 能被划分成二张人口。

英文摘要：

To compare the differences in intertranslation space of ribosomal DNA （ITS） of Melampsora larici-populina, between the isolates from China and isolates from other countries, this study investigated ITS sequences and ITS polygenetic tree based on 11 isolates that were collected from 5 races in different parts of China. The results indicated that there was no difference among the ITS sequences of 11 isolates from China. The ITS sequence of isolates from China was more homogeneous with that of isolates from Britain compared with France, Germany, and Canada. Intersimple sequence repeat （ISSR） markers were also used to study the genetic division of Melampsora larici-populina, and the results showed that the 11 tested isolates could be divided into Western population and Northern population. Genetic diversity index of race C2 was significantly different from that of races C4, C3, and C1, and no significant differences were observed among the other races. Pathogenicity division of races must not harmonize with their genetic division, except race C2. The ITS region is conservative, and ITS sequence is not fit for studying the differences that existed among the races. ISSR marker can be used for intraspecies population study, and Melampsora larici-populina in China can be divided into two populations.