Fig. 3

Neighbor-joining phylogenetic tree based on 16S rRNA gene sequences showing the phylogenetic position of all isolated strains. Halobacterium salinarum JCM 8978 (AB663362) was used as the outgroup. Bootstrap support is shown for cases where the value was greater than 50% based on 1000 replications. The scale bar indicates 0.01 substitution per nucleotide position. Strains from the shrimp ponds were highlighted as green shade, and the strains from surrounding seawater were highlighted as orange shade, while the reference strains were marked with red dots, and GeneBank accession numbers listed after each sequence name