Fig. 4

a Scatter plot of the 25th percentile of the PML distribution for each contig in a human assembly [21] with respect to a SPUMONI 2 index of contaminants. Contigs where the 25th percentile of its PML distribution is 2 or greater are labeled “Suspicious” and if it is less than 2, the contig is labeled “Normal.” b dot plots showing high-scoring local alignments found with minimap2 [5] for the four suspicious contigs versus sequences in the contaminant pangenome. The suspicious contigs were reported and moved from the assembly in December, 2021