Fig. 2From: Geographical structure of endosymbiotic bacteria hosted by Bathymodiolus mussels at eastern Pacific hydrothermal ventsSequence networks of six protein-coding genes of Bathymodiolus bacterial symbionts. Two representative geographical regions are overlaid on the networks with two different colors corresponding to the regional sampling sites as in Fig. 1: blue for northern symbiont type (EPRÂ +Â GAR) and orange for southern symbiont type (PAR) harbored by B. thermophilus and B. antarcticus host mussels, respectivelyBack to article page