Fig. 2From: The variability and reproducibility of whole genome sequencing technology for detecting resistance to anti-tuberculous drugsCoverage across drug-resistance genes. The coverage across the drug-resistance genes in POR1, 2 and 6 samples sequenced using both the a Ion PGM and b Illumina MiSeq. The dashed red line represents the cutoff used when calling variants. Any position with less than tenfold coverage was marked as missing. The low coverage in thyA is due to a deletion polymorphismBack to article page