Fig. 4From: Anaerobic methane-oxidizing bacterial communities in sediments of a drinking reservoir, Beijing, ChinaNeighbor-joining phylogenetic tree showing the phylogenetic affiliations of 16S rRNA genes. Numbers in parentheses are the number of clones within this OUT. GenBank accession numbers are shown following sequences from other studies. The letter A represents 16S rRNA genes in summer, and the letter B represents the genes in winter. The bootstrap values were based on 1000 replicates; the scale bar indicates the number of nucleotides substitutions per homologous siteBack to article page