Studies on rDNA ITS1 Regions of Soybean and Its Wild Relatives rDNA ITS Analysis of Mycorrhizal Fungi in Cymbidium Plants Ribosomal DNA ITS Sequences Analysis of the Chinese Crude Drug Fructus Schisandrae Sphenantherae and Fruts of Schisandra viridis Identification and rDNA ITS sequence analysis of the Pythium root rot pathogens of processing tomato in Xinjiang