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Unveiling the multilocus sequence typing (MLST) schemes and core genome phylogenies for genotyping chlamydia trachomatis

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Date
2018
Author
Patiño, Luz H.
Camargo, Milena
Muñoz, Marina
Ríos-Chaparro, Dora I.
Patarroyo, Manuel A.Autoridad Universidad de Rosario
Ramírez, Juan DavidAutoridad Universidad de Rosario
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Citation
URI
10.3389/fmicb.2018.01854
http://repository.urosario.edu.co/handle/10336/19198

Abstract
Multilocus sequence typing (MLST) has become a useful tool for studying the genetic diversity of important public health pathogens, such as Chlamydia trachomatis (Ct). Four MLST schemes have been proposed for Ct (data available from Chlamydiales MLST databases). However, the lack of a sole standardized scheme represents the greatest limitation regarding typing this species. This study was thus aimed at evaluating the usefulness of the four MLST schemes available for Ct, describing each molecular marker's pattern and its contribution toward a description of intra-specific genetic diversity and population structure. The markers for each scheme, showed a variable power of dicrimination, exhibiting in some cases over estimation in the determination of Sequence Types (STs). However, individual analysis of each locus's typing efficiency and discrimination power led to identifying 8 markers as having a suitable pattern for intra-specific typing. analyzing the 8 candidate markers gave a combination of 3 of these loci as an optimal scheme for identifying a large amount of STs, maximizing discrimination power whilst maintaining suitable typing efficiency. One scheme was compared against core genome phylogenies, finding a higher typing resolution through the last approach. These results confirm once again that although complete genome data, in particular from core genome MLST (cgMLST) allow a high resolution clustering for Ct isolates. There are combinations of molecular markers that could generate equivalent results, with the advantage of representing an easy implementation strategy and lower costs leading to contribute to the monitoring and molecular epidemiology of Ct. © 2018 Patiño, Camargo, Muñoz, Ríos-Chaparro, Patarroyo and Ramírez.
Subject
Biological Marker ; Rna 16S ; Allele ; Chlamydia Trachomatis ; Clonal Species ; Dna Dna Hybridization ; Dna Microarray ; Gene Mutation ; Genetic Variability ; Genome ; Genome Analysis ; Genotyping Technique ; Haplotype ; Information Retrieval ; Molecular Typing ; Multilocus Sequence Typing ; Parsimony Analysis ; Phylogeny ; Polymerase Chain Reaction ; Restriction Fragment Length Polymorphism ; Serotyping ; Single Nucleotide Polymorphism ; Urinary Tract Infection ; Whole Genome Sequencing ; Marcador biológico ; 16S ARN ; Alelo ;

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https://www.frontiersin.org/articles/10.3389/fmicb.2018.01854/full...

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