Figure 2
From: Microbial stratification in low pH oxic and suboxic macroscopic growths along an acid mine drainage
Maximum-likelihood phylogenies for the bacterial 16S rRNA full-length sequence amplicons retrieved from the constructed gene clone libraries. Scale bars represent changes per site or the ( × 100) % difference in nucleotide sequences. The main phylogenetic clusters are highlighted in grey. Bootstrap values are labelled at their corresponding nodes with circles: >85%, closed circles; >50%, open circles. The contribution of each OPU to the library is represented in the accompanying graphs. Representative sequences for each sample are differentiated by a colour code: B1A, red; B1B, blue; B2, green.
