Deoxyribonucleic Acid Homology Among the Caulobacters

Deoxyribonucleic acid (DNA) homologies among 26 strains of bacteria including representative type species of the genera Caulobacter, Asticcacaulis, and Prosthecobacter were determined by DNA/DNA reassociation in solution with S1 endonuclease for removing unpaired structures. The relatedness of the strains observed by this procedure are discussed together with previous findings made from numerical taxonomy and phage typing studies.