TABLE 2.

Features of Arnebia and Lithospermum chloroplast genomes.

Species	A. guttata	A. tibetana	A. euchroma	L. erythrorhizon
Accession number	MT975391	MT975392	MT975393	MT975394
Total cp genome size (bp)	150,311	150,465	150,250	149,316
Large single-copy (LSC) region (bp)	81,267	81,348	81,103	80,411
Inverted repeat (IR) region (bp)	17,144	17,159	17,311	17,193
Small single-copy (SSC) region (bp)	25,950	25,979	25,918	25,856
Total number of genes (unique)	112	112	112	112
Protein-coding genes (unique)	78	78	78	78
rRNA (unique)	4	4	4	4
tRNA (unique)	30	30	30	30
GC content (%)	37.7	37.7	37.6	37.6
LSC (%)	35.6	35.6	35.6	35.5
IR (%)	43.0	43.0	43.0	43.0
SSC (%)	31.4	31.3	31.1	31.2