SEQUENCE ANALYSES IN ITS2 OF NUCLEAR RDNA OF SOME SPECIES OF USTILAGO1
GUO LIN
Systematic Mycology & Lichenology Laboratory Institute of Microbiology,
Academia Sinica,Beijing 100080

ABSTRACT:Sequence of ribosmal RNA genes(rDNA)in the internal transcribed spacer2(ITS2)were detemined for some specimens of Ustilago anomala,U.bungeana,U.cordae and U. reticulata.The results show that Ustilago anomala on the genus Bilderdykia is diver -gent from other species of Ustilago on the genus Polygonum, whilst U.bungeana is syonymous with U.cordae.

KEY WORDS:PCR;rDNA;IT2;Ustilago