An image of representative gel showing DGGE analysis of PCR products amplified from individual clones.

<p>Lanes labeled 1 to 21 give examples of individual clones that were randomly picked out from the clone library of SC population. Clones with the same electrophoretic mobility in the gel were temporarily grouped into one group. The marker lanes (M) contained PCR-amplified 16S rRNA gene fragments of nine bacterial clones that showed different electrophoretic mobility in DGGE gel.