DGGE analysis of the partial dsrB gene fragments from sediment samples of different soda lakes from the Kulunda Steppe (southwestern Siberia, Russia). Lane 1, 1KL; lane 2, 2KL; lane 3, 3KL; lane 4, 4KL; lane 5, 5KL; lane 6, 6KL; lane 7, 9KL; lane 8, 10KL; lane 9, 11KL; lane 10, 16KL (see Table 1 for more information on the soda lakes). Bands indicated by a white circle and number were excised from the gel and sequenced.