We report the whole-genome sequence of the non-rhizobial endosymbiotic bacteria Tardiphaga sp. strain 709, which was isolated from the root nodule of Astragalus inopinatus Borris. on the Kamchatka Peninsula, Russia. The genome consists of one chromosome and one plasmid with a total length of 6,359,564 bp and 61.5% of GC content.
Keywords: Kamchatka Peninsula; non-rhizobial endophyte; whole-genome sequencing.