This work was supported by National Natural Science Fundation of China (No.30400285, 30671317), Postdoctoral Grant from Ag-riculture Sciences Academy of Heilongjiang Province (No. LRB06-010), China Postdoctoral Grant, Item for Teachers from Heilongjiang University (No. 140022), Young People’s Science Fund of Heilongjiang Province (No. QC06C012), 973(No. 2004CB117203-4), the Opening Fund of Key Opening Laboratory of Physiology and Ecology of Crop in Cold Terra of Agriculture Ministry "the Cloning and Mapping of cDNA Sequence from Related Gene Resistant to Phytophthora sojae and International Tech-nology Cooperation Item (No. 2005DFA30340).
The internal transcribed spacer (ITS) region (ITS1, ITS2 and 5.8S rDNA) of the nuclear ribosomal DNA (nrDNA) was amplified via the PCR method in seventeen different isolates of Phytophthora sojae using the commo...