The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Reductive evolution and niche adaptation inferred from the genome of Mycobacterium ulcerans, the causative agent of Buruli ulcer
Open accessAbstract
Mycobacterium ulcerans is found in aquatic ecosystems and causes Buruli ulcer in humans, a neglected but devastating necrotic disease of subcutaneous tissue that is rampant throughout West and Central Africa. Here, we report the complete 5.8-Mb genome sequence of M. ulcerans and show that it comprises two circular replicons, a chromosome of 5632 kb and a virulence plasmid of 174 kb. The plasmid is required for production of the polyketide toxin mycolactone, which provokes necrosis. Comparisons with the recently completed 6.6-Mb genome of Mycobacterium marinum revealed >98% nucleotide sequence identity and genome-wide synteny. However, as well as the plasmid, M. ulcerans has accumulated 213 copies of the insertion sequence IS 2404, 91 copies of IS 2606, 771 pseudogenes, two bacteriophages, and multiple DNA deletions and rearrangements. These data indicate that M. ulcerans has recently evolved via lateral gene transfer and reductive evolution from the generalist, more rapid-growing environmental species M. marinum to become a niche-adapted specialist. Predictions based on genome inspection for the production of modified mycobacterial virulence factors, such as the highly abundant phthiodiolone lipids, were confirmed by structural analyses. Similarly, 11 protein-coding sequences identified as M. ulcerans-specific by comparative genomics were verified as such by PCR screening a diverse collection of 33 strains of M. ulcerans and M. marinum. This work offers significant insight into the biology and evolution of mycobacterial pathogens and is an important component of international efforts to counter Buruli ulcer.
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Self-citationACT: the Artemis comparison tool
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Metadata
- Authors
- Stinear, T. P., Seemann, T., Pidot, S., Frigui, W., Reysset, G., Garnier, T., Meurice, G., Simon, D., Bouchier, C., Ma, L., Tichit, M., Porter, J. L., Ryan, J., Johnson, P. D. R., Davies, J. K., Jenkin, G. A., Small, P. L. C., Jones, L. M., Tekaia, F., Laval, F., Daffé, M., Parkhill, J., & Cole, S. T.
- Venue
- Genome Research
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2007-01-08
- Volume
- 17
- Issue
- 2
- Pages
- 192-200
- ISSN
- 1088-9051 (ISSN-L)
- OpenAlex
- W2099098590
- Cited by
- 396
- References
- 36
- Type
- posted content
- Language
- en
- Open access
- bronze
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- Stinear, T. P., Seemann, T., Pidot, S., Frigui, W., Reysset, G., Garnier, T., Meurice, G., Simon, D., Bouchier, C., Ma, L., Tichit, M., Porter, J. L., Ryan, J., Johnson, P. D. R., Davies, J. K., Jenkin, G. A., Small, P. L. C., Jones, L. M., Tekaia, F., . . . Cole, S. T. (2007). Reductive evolution and niche adaptation inferred from the genome of Mycobacterium ulcerans, the causative agent of Buruli ulcer. Genome Research. https://doi.org/10.1101/gr.5942807
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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