Fig 4. Relative abundance (%) of archaeal family level groups within each of the microcosms and the original sediment sample based on the frequency of the 8 distinct ARDRA patterns identified in the 16S rRNA gene clone libraries.

These 8 ARDRA patterns were resolved into 5 different family level groups based on the phylogenetic assignments of representative clone sequences (see Fig 3). The numbers adjacent to the columns indicate which ARDRA patterns contributed to the groups in individual microcosms.