GenoscopeSayavedra L. et al. Abundant toxin-related genes in the genomes of beneficial symbionts from deep-sea hydrothermal vent mussels Elife. 2015 4 :e07966 doi: 2015 Two Host Clades, Two Bacterial Arsenals : Evolution through Gene Losses in Facultative EndosymbiontsToutes les publicationsTara Oceans C,Structure and function of the global ocean microbiome