@article{mbs:/content/journal/ijsem/10.1099/00207713-37-1-35, author = "De Ley, J. and Mannheim, W. and Segers, P. and Lievens, A. and Denijn, M. and Vanhoucke, M. and Gillis, M.", title = "Ribosomal Ribonucleic Acid Cistron Similarities and Taxonomic Neighborhood of Brucella and CDC Group Vd", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "1987", volume = "37", number = "1", pages = "35-42", doi = "https://doi.org/10.1099/00207713-37-1-35", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-37-1-35", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = "Hybridizations were performed between labeled ribosomal ribonucleic acids from Brucella abortus ATCC 23448T(T = type strain) and from several other organisms on the one hand and deoxyribonucleic acids from type and representative Brucella strains and from many other gram-negative organisms on the other hand. Brucella forms a tight cluster, with deoxyribonucleic acid homologies close to 100%; its closest neighbors are CDC group Vd, followed by Phyllobacterium. This Brucella ribosomal ribonucleic acid branch links most closely at about 73.1°C Tm(e) with the Agrobacterium-Rhizobium cluster, which is itself a member of ribosomal ribonucleic acid superfamily IV. The deoxyribonucleic acid base compositions of Brucella strains range from 57.9 to 59.2 mol% guanine plus cytosine; the average genome molecular weights of the six species range from 2.37 × 109to 2.82 × 109.", }