Table 1. Sequencing data statistics.

Samples	Clean Reads	Clean Data	GC content (%)	% ≥Q30
Stage 1	22,364,281	5,591,070,250	41.06	93.16
Stage 2	18,460,991	4,615,247,750	40.42	92.42
Stage 3	20,636,344	5,159,086,000	39.83	92.7
Stage 4	24,531,820	6,132,955,000	37.67	92.47

Samples: the name of the sample; Clean Reads: total number of paired-end reads in the clean data; Clean Data: total number of bases in the clean data; GC content: the percentage of G and C in the total bases; % ≥Q30: the percentage of bases whose quality value was ≥30.