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Table 3 Coverage drop after B-tail removal

From: Evaluation of genomic high-throughput sequencing data generated on Illumina HiSeq and Genome Analyzer systems

Remaining per-base coverage after B-tail removal

Number of positions with this coverage in the ZR reference (Bv-95nt data)

Number of positions with this coverage in the PhiX reference (PhiX-95nt data)

90 to 100%

41,130 (40.26%)

4,016 (91.65%)

80 to 90%

4,056 (3.97%)

266 (6.07%)

60 to 80%

1,711 (1.67%)

100 (2.28%)

40 to 60%

310 (0.30%)

0 (0.00%)

20 to 40%

76 (0.07%)

0 (0.00%)

0 to 20%

29 (0.03%)

0 (0.00%)