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. 2014 May 27;5:157. doi: 10.3389/fgene.2014.00157

Figure 5.

Figure 5

Estimating required read sampling for contaminant checks. Ten million reads from an Illumina RNA-seq dataset was subsampled at various numbers of reads. The number of rRNA contaminant reads in this dataset was 1.86% when calculated over the full dataset. The absolute percentage difference at different sub-sample sizes was calculated for 500 replicates at each depth and the average shown. The error bars indicate the 95% confidence interval for the absolute percentage difference.