Table 1.

Statistical analysis of clean reads.

Sample	Raw reads (M)	Number of reads 15\41nt in length (M)	Q30 (%)*	Number of reads without N-base (M)	Clean reads (M)	Clean reads unique (M)
A_1	24.08	11.35	93.64	11.14	11.14	2.42
A_2	34.97	13.61	93.96	13.34	13.34	2.76
A_3	31.39	9.73	93.55	9.53	9.53	1.97
B_1	22.85	15.16	93.11	14.90	14.90	2.79
B_2	22.84	13.87	92.91	13.61	13.61	2.73
B_3	24.55	15.37	92.33	15.12	15.12	2.84
C_1	23.38	15.54	94.45	15.30	15.30	3.51
C_2	26.89	12.46	94.33	12.21	12.21	2.68
C_3	28.13	14.13	94.30	13.88	13.88	3.23
D_1	25.33	14.96	93.01	14.69	14.69	3.35
D_2	26.41	15.61	94.85	15.32	15.32	3.56
D_3	21.61	13.53	92.99	13.28	13.28	3.26
E_1	17.54	14.51	93.20	14.26	14.26	2.54
E_2	18.75	15.28	92.51	14.89	14.89	2.53
E_3	19.28	16.28	94.89	15.99	15.99	3.12

^*Q30 represents the percentage of bases whose phred number is greater than 30 among the raw bases.