Detection of nucleic acid of HRV by a dig-labelled probe prepared with polymerase chain reaction(PCR)

cDNA probe of the partial genome segment of URV nineth gene was labelled with DIG by thetechnlque of PCR.DNA-RNA dot blot hybrid izat ion results showed the proporties of HRV A groupspeci ficity of this probe,The results were consistent by the method or loading the sam ple supornatantdirectly or loading after the extraction of fecal sample nucleic acld.We also compared the resul ts ofdot blot hybridlZation and PAG E.It was strongly ind icated in this ex periment that the Dig-labelledHRV cDNA probe prepared directly by PcR appeared to be convenient,fast,high labelling rate andhighly specific.