Phylogenetic tree of H. borinquense PR3T with a selection of type strains of the family Halobacteriaceae, inferred from 1,433 aligned 16S rRNA characters  under the maximum likelihood criterion [3,4]. The tree was rooted with Natronomonas pharaonsis, the deepest branching member of the family Halobacteriaceae. The branches are scaled in terms of the expected number of substitutions per site. Numbers above branches are support values from 1,000 bootstrap replicates. Strains with a genome sequencing project registered in GOLD  are printed in blue; published genomes in bold.