【摘要】 首次对我国松干锈菌的核糖体DNA中的内转录间隔区 (ITS)序列进行了测定 ,并与得到普遍承认的国外柱锈菌属其它种的ITS进行了比较 .运用PAUP和TREECON软件进行系统发育分析并得到了一致的结果 :我国Cron artiumflaccidum和C .quercuum的菌株各自分别形成一个分支 ,而C .ribicola按锈孢子寄主分成了红松和华山松两个分支 ,红松上和华山松上的C .ribicola相互间遗传距离很大 ,分别和其它的种平行 ,该结果显示了原来被鉴定为C .ribicola的我国特有的华山松疱锈菌 ,可能是一个不同于C .ribicola的独立的种 .更多还原

【Abstract】 Sequences of the internal transcribed spacers(ITS) of \%Cronartium ribicola,C.flaccidum\% and \%C.quercuum\% in China were determined.The comparison of ITS sequences between these strains and other strains of Cronartium from GenBank was made. The analysis results were consistent based on MP and NJ analysis. In the analysis, \%C.appalachianum\% was used as outgroup,and the phylogenetic trees using parsimony and neighbor joining were obtained. The distance values between isolates from \%Pinus armandii\% and from \%P. koraiensis\% are quite big.The result indicates that the pine stem rust fungi from Pinus armandii may be an isolated species different from \%C.ribicola.\%更多还原