Table 1.
Library coverage estimations and sequence diversity of 16 S rRNA.
Figure 1.
Community analysis using principal coordinate analysis (PCoA) of weighted UniFrac distance matrix.
Figure 2.
Relative abundances of dominant phylogenetic groups in sediments derived from Caohai and Waihai sampling sites.
Phylogenetic groups accounting for <1% of all classified sequences are summarized as “other” in the figure.
Figure 3.
Phylogenetic trees with the (a) amoA and (b) nosZ representative sequences (OTUs) from Dianchi Lake sediments (Sampled in Dec. of 2010).
The numbers on the branch nodes represent percentage of bootstrap resamplings based on 1000 replicates (only ≥50% are shown). The scale bar indicates the number of nucleotide substitutions per site. The relative abundance of each OTU (comprising 2 or more clones) in the amoA or nosZ clone library is shown in parentheses. Additional symbols for abundance are (▪) Caohai and (▴) Waihai.
Figure 4.
Quantitive analysis of 16 S rRNA, amoA, and nosZ gene in the sediments (computed in dry weight).
Black bars represent Caohai and grey bars represent Waihai. Error bars represent standard deviation from three independent experiments.
Figure 5.
Principal components analysis (PCA) and Redundancy analysis (RDA) with of bacterial communities as affected by sediment properties, based on the relative abundance of dominant bacterial phyla and proteobacterial classes.
Total-N represents NH3-N+NO2−-N+NO3−-N. Abbreviations in figure: Temp, temperature; Actinobac., Actinobacteria; Alphapro., Alphaproteobacteria; Betapro., Betaproteobacteria; Deltapro., Deltaproteobacteria; Gammapro.,Gammaproteobacteria; Acidobac., Acidobacteria; Unclassified bac., Unclassified bacteria; Unclassified Pro., Unclassified Proteobacteria. Epsilonpro., Epsilonproteobacteria.