Unusually High Archaeal Diversity in a Crystallizer Pond, Pomorie Salterns, Bulgaria, Revealed by Phylogenetic Analysis

Figure 3

Neighbor-joining phylogenetic tree based on archaeal 16S rDNA sequences found in a crystallizer pond, PS. Bar, 5% substitutions in nucleotide sequence. Bootstrap values greater than 70% confidences are shown at branching points (percentage of 1000 resamplings). Sequence accession numbers are given in parenthesis. A sequence from the thermoacidophilic archaeon Sulfolobus acidocaldarius that belongs to the phylum Crenarchaeota constituted the out group.