strain_id	description	flag	length
NC_020528.1	Sinorhizobium meliloti 2011, complete sequence	genbank	3657276
NC_020527.1	Sinorhizobium meliloti 2011 plasmid pSymA, complete sequence	genbank	1352561
NC_020560.1	Sinorhizobium meliloti 2011 plasmid pSymB, complete sequence	genbank	1683348
