strain_id	description	flag	length
NZ_CP021800.1	Sinorhizobium meliloti strain USDA1021 chromosome, complete genome	genbank	3425977
NZ_CP021803.1	Sinorhizobium meliloti strain USDA1021 plasmid accessoryA, complete sequence	genbank	297816
NZ_CP021801.1	Sinorhizobium meliloti strain USDA1021 plasmid psymA, complete sequence	genbank	1412628
NZ_CP021802.1	Sinorhizobium meliloti strain USDA1021 plasmid psymB, complete sequence	genbank	2011522
