Table 2. NGS sequencing statistics for Iris species and outgroup.

Species	Trimmed data (bp)	Percentage of trimmed bases to original raw reads	# of aligned reads to the plastid genome	Plastid genome coverage (x)	Plastid genome length (bp)
S. angustifolium	1,412,822,734	79.03%	92,374	140	151,305
I. domestica	2,169,071,850	78.93%	309,614	544	153730
I. ensata var. spontanea	1,305,887,854	71.47%	338,839	661	153,055
I. lactea var. chinensis	1,443,127,793	70.37%	94,059	162	152,294
I. laevigata	4,340,216,662	86.23%	654,027	381	151,081
I. minutoaurea	1,133,976,531	69.96%	158,227	276	150,955
I. pseudoacorus	1,033,295,333	69.29%	143,774	246	152,562
I. rossii var. latifolia	929,066,495	69.65%	122,004	226	152,654
I. rossii var. rossii	1,350,741,033	69.42%	179,282	309	153,083
I. ruthenica	4,265,652,485	89.30%	2,067,701	1,218	152,287
I. sanguine	1,330,043,383	70.53%	179,563	309	152,408
I. setose	1,262,063,831	69.91%	104,833	178	152,921
I. uniflora var. caricina	2,344,526,509	77.33%	256,424	455	152,281