Abstract
Deoxyribonucleic acid (DNA)-DNA hybridization was used to determine the relationships of the type strains of the three species of the genusHaloferax to 21 halobacterial strains representing isolates from hypersaline habitats and collection strains. Two genotypic groups with high DNA homology were obtained, belonging to the speciesHaloferax gibbonsii andHaloferax mediterranei. The highest DNA relatedness (≥74%) was obtained in theHalobacterium salinarium group.Halobacterium denitrificans showed very low DNA homology with the other halobacteria investigated. The G+C content of the eight strains ofHaloferax tested ranged between 59.1 and 65.5 mol%.
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Gutiérrez, M.C., Ventosa, A. & Ruiz-Berraquero, F. DNA-DNA homology studies among strains ofHaloferax and other halobacteria. Current Microbiology 18, 253–256 (1989). https://doi.org/10.1007/BF01570301
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DOI: https://doi.org/10.1007/BF01570301