High-resolution melting analysis of the spa locus reveals significant diversity within sequence type 93 methicillin-resistant Staphylococcus aureus from northern Australia
Tong, S.Y.C., Lilliebridge, R.A., Holt, D.C., McDonald, M.I., Currie, B.J., and Giffard, P.M. (2009) High-resolution melting analysis of the spa locus reveals significant diversity within sequence type 93 methicillin-resistant Staphylococcus aureus from northern Australia. Clinical Microbiology and Infection, 15 (12). pp. 1126-1131.
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Abstract
High-resolution melting analysis is an inherently robust, easy and inexpensive approach to the examination of genomic regions containing single-nucleotide polymorphisms and hypervariable loci. Staphylococcus aureus sequence type (ST) 93 is a singleton, Panton–Valentine leukocidin-positive clone unique to Australia. A high-resolution melting-based method for the identification of ST93 was developed, and a similar approach was used to reveal diversity within the spa locus of this lineage. Statistical and graphical methods that account for instrumental and operator-dependent variation in high-resolution melting curves were developed, to allow greater confidence and reproducibility in deciding whether another curve is truly different from the baseline curve of an amplicon with known sequence. The data support a very early acquisition, or multiple independent acquisitions, of SCCmec by ST93 methicillin-susceptible S. aureus (MSSA), and the coexistence of MSSA and methicillin-resistant S. aureus versions of the same lineage within northern Australia.
| Item ID: | 37212 |
|---|---|
| Item Type: | Article (Research - C1) |
| ISSN: | 1469-0691 |
| Keywords: | high resolution melting; Staphylococcus aureus; SPA; ST93 |
| Funders: | National Health and Medical Research Council of Australia (NHMRC), Co-operative Research Centre for Aboriginal Health |
| Projects and Grants: | NHMRC Grant 436033 |
| Date Deposited: | 14 Oct 2015 01:53 |
| FoR Codes: | 11 MEDICAL AND HEALTH SCIENCES > 1103 Clinical Sciences > 110303 Clinical Microbiology @ 100% |
| SEO Codes: | 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920109 Infectious Diseases @ 100% |
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