Fig. 6: Magnetosome gene cluster and the phylogenetic tree based on magnetosome proteins.

a Organization of a gene cluster containing putative magnetosome- and magnetotaxis-associated genes. b ML tree based on the concatenated eight core magnetosome proteins (MamABEIKMPQ) showing the position of strain FCR-1 and 24 well-characterized cultured strains of magnetotactic “Ca. Magnetococcia”, Alphaproteobacteria, Gammaproteobacteria and Desulfobacterota except for uncultured “Ca. Mq. inordinatus” UR-1. The magnetosome proteins of magnetotactic Nitrosirota, uncultured “Ca. Magnetobacterium bavaricum” TM-1, are used as the outgroup. Cultured and uncultured MTB are shown in black and dark grey, respectively. The scale bar represents amino acid substitutions per site.