Fig. 3From: Evaluation of bias induced by viral enrichment and random amplification protocols in metagenomic surveys of saliva DNA virusesEvenness of contig coverage in saliva viromes obtained by different amplification methods. a Coverage profiles across the whole length of two of the most abundant cross-contigs. b Homogeneity of read distribution across contig positions is displayed by Lorenz curves. Dashed line depicts the perfect theoretical curve. c Coefficients of coverage variation for the 38 most abundant cross-contigs that shared > 50× coverage among analysed viromes. d Pearson’s correlations among coverage profiles of amplified and unamplified viromes for the same set of cross-contigs; *p < 0.01; **p < 0.005; and ***p < 0.001Back to article page