Table 2.

The basic characteristics of the chloroplast genomes of four Bulbophyllum species.

	B. pentaneurum	B. lingii	B. menghaiense	B. gedangense
Raw reads number	24,698,734	24,785,884	24,012,502	22,330,566
Raw data size (bp)	3,704,810,100	3.717,882,600	3,601,875,300	3,349,584,900
HQ Reads number	24,645,614	24,625,976	23,945,784	22,284,110
HQ Data size (bp)	3,690,233,928	3,682,524,097	3,584,614,507	3,336,468,056
genome size (bp)	156,182	156,689	156,550	158,524
LSC length (bp)	84,240	84,607	84,663	86,200
SSC length (bp)	18,266	18,244	18,105	18,632
IR length (bp)	26,838	26,919	26,891	26,846
Number of genes	113	113	113	113
Protein-coding genes	79	79	79	79
tRNA genes	30	30	30	30
rRNA genes	4	4	4	4
GC content (%)	36.8	36.8	36.7	36.8
GC content in LSC (%)	34.4	34.4	34.2	34.5
GC content in SSC (%)	29.4	29.3	29.3	29.3
GC content in IR (%)	43.0	43.1	43.0	43.0
GC content in Protein-coding (%)	37.4	37.4	37.3	37.6
GC content in tRNA (%)	52.8	52.8	52.7	53
GC content in rRNA IR (%)	55.2	55.1	55.2	55.2