Identifying mixed Mycobacterium tuberculosis infections from whole genome sequence data

Authors: Sobkowiak B, Glynn JR, Houben RMGJ, Mallard K, Phelan JE, Guerra-Assunção JA, Banda L, Mzembe T, Viveiros M, McNerney R, Parkhill J, Crampin AC, Clark TG
Publication Year: 2018
Journal: BMC Genomics
Link: https://www.ncbi.nlm.nih.gov/pubmed/30107785

Mixed, polyclonal Mycobacterium tuberculosis infection occurs in natural populations. Developing an effective method for detecting such cases is important in measuring the success of treatment and reconstruction of transmission between patients. Using whole genome sequence (WGS) data, we assess two methods for detecting mixed infection: (i) a combination of the number of heterozygous sites and […]
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Genome-wide analysis of multi- and extensively drug-resistant Mycobacterium tuberculosis

Authors: Coll F, Phelan J, Hill-Cawthorne GA, Nair MB, Mallard K, Ali S, Abdallah AM, Alghamdi S, Alsomali M, Ahmed AO, Portelli S, Oppong Y, Alves A, Bessa TB, Campino S, Caws M, Chatterjee A, Crampin AC, Dheda K, Furnham N, Glynn JR, Grandjean L, Minh Ha D, Hasan R, Hasan Z, Hibberd ML, Joloba M, Jones-López EC, Matsumoto T, Miranda A, Moore DJ, Mocillo N, Panaiotov S, Parkhill J, Penha C, Perdigão J, Portugal I, Rchiad Z, Robledo J, Sheen P, Shesha NT, Sirgel FA, Sola C, Oliveira Sousa E, Streicher EM, Helden PV, Viveiros M, Warren RM, McNerney R, Pain A, Clark TG
Publication Year: 2018
Journal: Nature Genetics
Link: https://www.nature.com/articles/s41588-017-0029-0%20

To characterize the genetic determinants of resistance to antituberculosis drugs, we performed a genome-wide association study (GWAS) of 6,465 Mycobacterium tuberculosis clinical isolates from more than 30 countries. A GWAS approach within a mixed-regression framework was followed by a phylogenetics-based test for independent mutations. In addition to mutations in established and recently described resistance-associated genes, […]
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Recombination in pe/ppe genes contributes to genetic variation in Mycobacterium tuberculosis lineages

Authors: Alves A, Anthony RM, Bergval I, Bessa TB, Campino S, Clark TG, Coll F, Crampin AC, de Oliveira Sousa E, Dheda K, Gey van Pittius NC, Glynn JR, Grandjean L, Hasan R, Hasan Z, Hibberd ML, McNerney R, Miranda A, Moore D, Pain A, Panaiotov S, Perdigão J, Phelan JE, Portugal I, Sampson SL, Sheen P, Streicher EM, van Helden PD, Viveiros M, Warren R
Publication Year: 2016
Journal: BMC Genomics
Link: https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-016-2467-y

Background Approximately 10 % of the Mycobacterium tuberculosis genome is made up of two families of genes that are poorly characterized due to their high GC content and highly repetitive nature. The PE and PPE families are typified by their highly conserved N-terminal domains that incorporate proline-glutamate (PE) and proline-proline-glutamate (PPE) signature motifs. They are hypothesised […]
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A robust SNP barcode for typing Mycobacterium tuberculosis complex strains

Authors: Clark TG, Coll F, Glynn JR, Guerra-Assunção JA, Martin N, McNerney R, Pain A, Perdigão J, Portugal I, Viveiros M
Publication Year: 2014
Journal: Nature Communications
Link: http://www.nature.com/ncomms/2014/140901/ncomms5812/full/ncomms5812.html

Strain-specific genomic diversity in the Mycobacterium tuberculosis complex (MTBC) is an important factor in pathogenesis that may affect virulence, transmissibility, host response and emergence of drug resistance. Several systems have been proposed to classify MTBC strains into distinct lineages and families. Here, we investigate single-nucleotide polymorphisms (SNPs) as robust (stable) markers of genetic variation for phylogenetic analysis. We identify ~92k SNP across a global collection of 1,601 genomes.
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Identifying mixed Mycobacterium tuberculosis infections from whole genome sequence data

Genome-wide analysis of multi- and extensively drug-resistant Mycobacterium tuberculosis

Recombination in pe/ppe genes contributes to genetic variation in Mycobacterium tuberculosis lineages

A robust SNP barcode for typing Mycobacterium tuberculosis complex strains

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