Table 2. Statistic analysis of the raw sequencing data and clean data.

Sample	Raw_reads	Clean_reads	GC_rate(%)	Q20(%)	Q30(%)	Rate(%)
I-1	144,423,710	133,047,782	46.63	95.31	85.19	92.12
I-2	124,706,334	114,120,378	46.47	94.81	83.80	91.51
II-2	151,862,788	140,826,868	46.35	95.67	86.15	92.73
II-3	106,989,394	98,095,844	44.92	95.03	84.39	91.69
II-5	171,312,630	159,937,778	46.72	95.91	86.77	93.36
III-1	150,264,330	139,860,546	47.95	95.79	86.52	93.08
III-2	128,088,996	118,490,886	47.43	95.46	85.64	92.51
III-3	133,805,476	123,609,822	48.41	95.61	86.07	92.38

Note: Paired-end reads were generated with BGISEQ-500 platform, then the reads with sequencing adapters, N base, poly base, low quality etc. were filtered out with SOAPnuke.