Figure 1
From: Setting a baseline for global urban virome surveillance in sewage

Effect of read preprocessing on data interpretation. (a) Number of reads before preprocessing (blue bars) after quality control (red bars) and read dereplication (green bars). The x axis shows sample identifiers ordered by number of dereplicated reads. (b, c) Effect of number of PCR replication cycles on library concentration (color), species diversity (b) and read replication rate (c). (d, e) Fold replication of raw reads by species level annotation (points). X axis separates superkingdom or “Unknown” annotations. (d) shows sample LVA_31 with a high replication rate and panel e shows sample MLT_63 with a low replication rate.