2021
DOI: 10.1099/mgen.0.000689
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Comprehensive and accurate genetic variant identification from contaminated and low-coverage Mycobacterium tuberculosis whole genome sequencing data

Abstract: Improved understanding of the genomic variants that allow Mycobacterium tuberculosis (Mtb) to acquire drug resistance, or tolerance, and increase its virulence are important factors in controlling the current tuberculosis epidemic. Current approaches to Mtb sequencing, however, cannot reveal Mtb’s full genomic diversity due to the strict requirements of low contamination levels, high Mtb sequence coverage and elimination of… Show more

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Cited by 18 publications
(35 citation statements)
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“…Prior to LoFreq variant calling, in silico generated and clinical WGS fastq files were processed using the CompleX Bacterial Samples (XBS) pipeline to generate bam files [ 26 ]. Briefly, Fastq sequence data were mapped to the reference genome (H37Rv NC_000962.3) using BWA mem, after which the XBS pipeline performed identified read deduplication in the bam files using GATKMarkDuplicates (Picard) (Reference paper accepted, still to be added).…”
Section: Methodsmentioning
confidence: 99%
“…Prior to LoFreq variant calling, in silico generated and clinical WGS fastq files were processed using the CompleX Bacterial Samples (XBS) pipeline to generate bam files [ 26 ]. Briefly, Fastq sequence data were mapped to the reference genome (H37Rv NC_000962.3) using BWA mem, after which the XBS pipeline performed identified read deduplication in the bam files using GATKMarkDuplicates (Picard) (Reference paper accepted, still to be added).…”
Section: Methodsmentioning
confidence: 99%
“…In 2008, the first-line GenoType MTBDR plus line probe assay (LPA; Hain LifeSciences) was introduced. Since 2013, the initial diagnostic assay in the Western Cape Province is Xpert MTB/RIF (Cepheid) [ 24 ], with further investigation by first-line LPA (INH and RIF) of RIF-resistant isolates. Second-line DST was done using culture-based methods.…”
Section: Methodsmentioning
confidence: 99%
“…Sequencing data were analysed using the XBS pipeline (19). All FASTQ sequence data were mapped to the H37Rv reference genome using the Burrows-Wheeler alignment tool BWA-MEM (20).…”
Section: Dna Sequence Analysismentioning
confidence: 99%