Table 1 Statistics of sRNAs

Total raw reads

15,702,980

High-quality reads

14,682,846

93.5

3' adaptor null reads

4357

0.00003

Insert null reads

22,358

0.14

5' adaptor contaminant reads

115,878

0.74

Small insert reads (<18 nt)

1,290,435

8.22

Poly(A) sequence reads

2914

0.00002

Total clean sRNA reads

13,246,904

84.36

Unique sequence reads (18–30 nt)

2,815,874

17.93

Singleton sequence reads

2,075,775

13.22

Unique sequence reads (>2 reads)

740,099

4.71