The genome “Canditatus Phaeomarinobacter ectocarpi” Ec32, a new candidate genus of Alphaproteobacteria frequently associated to brown algae. Candidatus Phaeomarinibacter ectocarpi strain:Ec32

Rhizobiales and related orders of Alphaproteobacteria comprise several genera of nodule-inducing symbiotic bacteria associated to plant roots. Here we describe the genome of “Canditatus Phaeomarinobacter ectocarpi” Ec32, a member of a new candidate genus closely related to Rhizobiales and found in association with cultures of the filamentous brown algal model Ectocarpus. As of today, “Ca. P. ectocarpi” has not been successfully cultured, and identical rDNA sequences have been found exclusively associated to Ectocarpus. However, related sequences (≥97% identity) have also been detected free-living and in a Fucus vesiculosus microbiome barcoding project.