Fig. 1.

(A) Circular visualization of the pLA6_12 plasmid and (B) phylogenomic maximum likelihood tree of Roseobacter group members. Multi locus sequence alignment is based on 582 orthologous proteins with 182,693 amino acid positions. Strains with identical RepL-type plasmids are highlighted in yellow. Roseobacter group members containing a RepL-type plasmid with a backbone >92% identical to those of pLA6_12 are marked in red. Clades are shown partially collapsed. A noncollapsed version is given in SI Appendix, Fig. S3.