Whole-genome analysis of diverse Chlamydia trachomatis strains identifies phylogenetic relationships masked by current clinical typing


Harris, Simon R., Clarke, I., Seth-Smith, Helena M.B., Solomon, Anthony W., Cutcliffe, Lesley T., Marsh, Peter, Skilton, Rachel J., Holland, Martin J., Mabey, David., Peeling, Rosanna W., Lewis, David A., Spratt, Brian G., Unemo, Magnus, Persson, Kenneth, Bjartling, Carina, Brunham, Robert, de Vries, Henry J.C., Morré, Servaas A., Speksnijder, Arjen, Bébéar, Cécile M., Clerc, Maïté, de Barbeyrac, Bertille, Parkhill, Julian and Thomson, Nicholas R. (2012) Whole-genome analysis of diverse Chlamydia trachomatis strains identifies phylogenetic relationships masked by current clinical typing. Nature Genetics, 44, (4), 413-419. (doi:10.1038/ng.2214). (PMID:22406642).

Download

Full text not available from this repository.

Description/Abstract

Chlamydia trachomatis is responsible for both trachoma and sexually transmitted infections, causing substantial morbidity and economic cost globally. Despite this, our knowledge of its population and evolutionary genetics is limited. Here we present a detailed phylogeny based on whole-genome sequencing of representative strains of C. trachomatis from both trachoma and lymphogranuloma venereum (LGV) biovars from temporally and geographically diverse sources. Our analysis shows that predicting phylogenetic structure using ompA, which is traditionally used to classify Chlamydia, is misleading because extensive recombination in this region masks any true relationships present. We show that in many instances, ompA is a chimera that can be exchanged in part or as a whole both within and between biovars. We also provide evidence for exchange of, and recombination within, the cryptic plasmid, which is another key diagnostic target. We used our phylogenetic framework to show how genetic exchange has manifested itself in ocular, urogenital and LGV C. trachomatis strains, including the epidemic LGV serotype L2b.

Item Type: Article
ISSNs: 1061-4036 (print)
1546-1718 (electronic)
Subjects: Q Science > QH Natural history > QH426 Genetics
Q Science > QR Microbiology > QR180 Immunology
Q Science > QR Microbiology > QR355 Virology
Divisions: Faculty of Medicine > Infection, Inflammation and Immunity
ePrint ID: 337341
Date Deposited: 23 Apr 2012 15:46
Last Modified: 27 Mar 2014 20:20
URI: http://eprints.soton.ac.uk/id/eprint/337341

Actions (login required)

View Item View Item