Comparative Genome Analysis of the Photosynthetic Betaproteobacteria of the Genus Rhodocyclus: Heterogeneity within Strains Assigned to Rhodocyclus tenuis and Description of Rhodocyclus gracilis sp. nov. as a New Species. - Kyndt JA; Aviles FA; Imhoff JF; Künzel S; Neulinger SC; Meyer TE (Microorganisms, 2022)