Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium
From early 2012, a novel clone of vancomycin resistant Enterococcus faecium (assigned the multi locus sequence type ST796) was simultaneously isolated from geographically separate hospitals in south eastern Australia and New Zealand. Here we describe the complete genome sequence of Ef_aus0233, a...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
PeerJ, Ltd.
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/67893 |
| _version_ | 1848761687307452416 |
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| author | Buultjens, A. Lam, M. Ballard, S. Monk, I. Mahony, A. Grabsch, E. Grayson, M. Pang, S. Coombs, Geoffrey Robinson, J. Seemann, T. Johnson, P. Howden, B. Stinear, T. |
| author_facet | Buultjens, A. Lam, M. Ballard, S. Monk, I. Mahony, A. Grabsch, E. Grayson, M. Pang, S. Coombs, Geoffrey Robinson, J. Seemann, T. Johnson, P. Howden, B. Stinear, T. |
| author_sort | Buultjens, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | From early 2012, a novel clone of vancomycin resistant Enterococcus faecium (assigned
the multi locus sequence type ST796) was simultaneously isolated from geographically
separate hospitals in south eastern Australia and New Zealand. Here we describe the
complete genome sequence of Ef_aus0233, a representative ST796 E. faecium isolate.
We used PacBio single molecule real-time sequencing to establish a high quality,
fully assembled genome comprising a circular chromosome of 2,888,087 bp and five
plasmids. Comparison of Ef_aus0233 to other E. faecium genomes shows Ef_aus0233
is a member of the epidemic hospital-adapted lineage and has evolved from an ST555-
like ancestral progenitor by the accumulation or modification of five mosaic plasmids
and five putative prophage, acquisition of two cryptic genomic islands, accrued
chromosomal single nucleotide polymorphisms and a 80 kb region of recombination,
also gaining Tn1549 and Tn916, transposons conferring resistance to vancomycin and
tetracycline respectively. The genomic dissection of this new clone presented here
underscores the propensity of the hospital E. faecium lineage to change, presumably
in response to the specific conditions of hospital and healthcare environments. |
| first_indexed | 2025-11-14T10:35:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-67893 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:35:38Z |
| publishDate | 2017 |
| publisher | PeerJ, Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-678932018-09-26T00:33:24Z Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium Buultjens, A. Lam, M. Ballard, S. Monk, I. Mahony, A. Grabsch, E. Grayson, M. Pang, S. Coombs, Geoffrey Robinson, J. Seemann, T. Johnson, P. Howden, B. Stinear, T. From early 2012, a novel clone of vancomycin resistant Enterococcus faecium (assigned the multi locus sequence type ST796) was simultaneously isolated from geographically separate hospitals in south eastern Australia and New Zealand. Here we describe the complete genome sequence of Ef_aus0233, a representative ST796 E. faecium isolate. We used PacBio single molecule real-time sequencing to establish a high quality, fully assembled genome comprising a circular chromosome of 2,888,087 bp and five plasmids. Comparison of Ef_aus0233 to other E. faecium genomes shows Ef_aus0233 is a member of the epidemic hospital-adapted lineage and has evolved from an ST555- like ancestral progenitor by the accumulation or modification of five mosaic plasmids and five putative prophage, acquisition of two cryptic genomic islands, accrued chromosomal single nucleotide polymorphisms and a 80 kb region of recombination, also gaining Tn1549 and Tn916, transposons conferring resistance to vancomycin and tetracycline respectively. The genomic dissection of this new clone presented here underscores the propensity of the hospital E. faecium lineage to change, presumably in response to the specific conditions of hospital and healthcare environments. 2017 Journal Article http://hdl.handle.net/20.500.11937/67893 10.7717/peerj.2916 http://creativecommons.org/licenses/by/4.0/ PeerJ, Ltd. fulltext |
| spellingShingle | Buultjens, A. Lam, M. Ballard, S. Monk, I. Mahony, A. Grabsch, E. Grayson, M. Pang, S. Coombs, Geoffrey Robinson, J. Seemann, T. Johnson, P. Howden, B. Stinear, T. Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title | Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title_full | Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title_fullStr | Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title_full_unstemmed | Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title_short | Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium |
| title_sort | evolutionary origins of the emergent st796 clone of vancomycin resistant enterococcus faecium |
| url | http://hdl.handle.net/20.500.11937/67893 |