Figure 4
From: Bacterial and archaeal communities in Lake Nyos (Cameroon, Central Africa)

Denaturing gradient gel electrophoresis (DGGE) profiles of archaeal communities at different depths in Lake Nyos (a). Dendrogram calculated with the clustering algorithm of Unweighted Pair-Group Method with an Arithmetic Mean (UPGMA) for archaea in samples from all depths (b). Vertical changes of Shannon-Weaver index of diversity (H’) based on the number and relative intensities of the bands for archaea identified by DGGE analysis of PCR-amplified 16S rRNA gene (c). NSed: Sediment sample collected at the bottom of the lake. Arabic numerals: Successfully sequenced bands for archaea. M: Mass ladder standards.