Chloroplast gene expression level is negatively correlated with evolutionary rates and selective pressure while positively with codon usage bias in Ophioglossum vulgatum L

Table 1 RNA sequencing data and the number of RNA reads mapped with cp genes

Sample	Reads Number	Total Base	GC	Q20	Q30	RNA reads Number (mapped with cp genes)
repeat1	22,745,713	6,823,713,900	46.35%	98.07%	94.71%	93, 463
repeat1	22,745,713	6,823,713,900	46.11%	97.44%	93.41%	93, 463
repeat2	22,757,747	6,827,324,100	46.41%	97.93%	94.26%	185, 302
repeat2	22,757,747	6,827,324,100	46.17%	96.90%	92.47%	185, 302
repeat3	25,884,993	7,765,497,900	46.12%	98.04%	94.69%	109, 383
repeat3	25,884,993	7,765,497,900	45.83%	97.00%	92.64%	109, 383

ISSN: 1471-2229