Philogenetic status of the halotolerant strain Brevibacterium sp. U1, isolated from saline soil, in the Brevibacterium genus system

The position of the previously isolated from the soil of the industrial salt production area halotolerant strain Brevibacterium sp. U1 in the system of the genus Brevibacterium was studied based on the analysis of the nucleotide sequences of ect-genes encoding the biosynthesis enzymes of the osmoprotective substance, ectoine, and the 16S rDNA. Phylogenetic analysis of the nucleotide sequences of the ectB and ectC genes was consistent with the results of the analysis of 16S rDNA. However, a significant evolutionary distance of the nucleotide sequences of the ectC gene of the strain Brevibacterium sp. U1 from phylogenetically closely related species B. aurantiacum was observed.