Fig. 1
From: Towards precision quantification of contamination in metagenomic sequencing experiments
Contaminant sequencing reads are inversely proportional to sample mass. For each of n = 32 HeLa input masses (present in triplicate), sequencing reads for the total ERCC set (n = 92 different transcripts) are normalized per million (rpm) and presented in green; sequencing rpm aligning to the E. coli genome are presented in blue; and sequencing rpm aligning to the S. cerevisiae genome are presented in red. The linear regressions associating sample input mass with ERCC, E. coli, and S. cerevisiae are described with the adjusted R2 and p value