Virulence and resistance genes profiles and clonal relationships of non-typhoidal food-borne Salmonella strains isolated in Tunisia by whole genome sequencing.
Identifieur interne : 000744 ( Main/Exploration ); précédent : 000743; suivant : 000745Virulence and resistance genes profiles and clonal relationships of non-typhoidal food-borne Salmonella strains isolated in Tunisia by whole genome sequencing.
Auteurs : Amal Ben Hassena [Tunisie] ; Julie Haendiges [États-Unis] ; Sonia Zormati [Tunisie] ; Sonda Guermazi [Tunisie] ; Radhouane Gdoura [Tunisie] ; Narjol Gonzalez-Escalona [États-Unis] ; Mariam Siala [Tunisie]Source :
- International journal of food microbiology [ 1879-3460 ] ; 2021.
Descripteurs français
- KwdFr :
- Animaux (MeSH), Génome bactérien (génétique), Phylogenèse (MeSH), Résistance bactérienne aux médicaments (génétique), Salmonella (classification), Salmonella (génétique), Salmonella (pathogénicité), Séquençage du génome entier (MeSH), Sérogroupe (MeSH), Sérotypie (MeSH), Tunisie (MeSH), Typage par séquençage multilocus (méthodes), Virulence (génétique).
- MESH :
- génétique : Génome bactérien, Résistance bactérienne aux médicaments, Salmonella, Virulence.
- méthodes : Typage par séquençage multilocus.
- pathogénicité : Salmonella.
- Animaux, Phylogenèse, Salmonella, Séquençage du génome entier, Sérogroupe, Sérotypie, Tunisie.
- Wicri :
- geographic : Tunisie.
English descriptors
- KwdEn :
- Animals (MeSH), Drug Resistance, Bacterial (genetics), Genome, Bacterial (genetics), Multilocus Sequence Typing (methods), Phylogeny (MeSH), Salmonella (classification), Salmonella (genetics), Salmonella (pathogenicity), Serogroup (MeSH), Serotyping (MeSH), Tunisia (MeSH), Virulence (genetics), Whole Genome Sequencing (MeSH).
- MESH :
- geographic : Tunisia.
- classification : Salmonella.
- genetics : Drug Resistance, Bacterial, Genome, Bacterial, Salmonella, Virulence.
- methods : Multilocus Sequence Typing.
- pathogenicity : Salmonella.
- Animals, Phylogeny, Serogroup, Serotyping, Whole Genome Sequencing.
Abstract
Whole genome sequencing (WGS) has made impressive progress in the field of molecular biology. Its most common application for public health is in the area of surveillance of food-borne diseases. WGS has the potential for providing a large amount of information, such as the identification of the strain type, the characterization of antibiotic resistance and virulence, and phylogeny. In our study, thirty-nine non-typhoidal Salmonella strains were isolated from diverse sources in Tunisia. Non-typhoidal Salmonella are among the most common pathogens contaminating food animals. The presence of virulence and antimicrobial resistance determinants in those strains were investigated using whole genome sequencing (WGS) and appropriate data analysis. The genomes were screened for several Salmonella virulence genes using the Virulence Factor Database VFDB. Twelve different virulence profiles, which correspond to the 12 identified serovars, were recognized. Several antimicrobial resistance genes were also detected: aac (6')-Iaa, sul1, tetA, bla-TEM and qnrS genes. Phylogenetic relationships among the strains were further assessed by a cgMLST analysis. The resulting phylogenetic tree consisted of several clusters consistently with the in silico multilocus sequence typing (MLST) and serotyping. Our findings demonstrated that WGS and subsequent data analysis provided an accurate tool for genetic characterization of bacterial strains compared to usual molecular typing techniques. To the best of our knowledge, this is the first report of an application of WGS for genetic characterization of food-borne Tunisian strains.
DOI: 10.1016/j.ijfoodmicro.2020.108941
PubMed: 33181420
Affiliations:
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Le document en format XML
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USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Division of Microbiology, Office of Regulatory Science, Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, MD</wicri:regionArea><placeName><region type="state">Maryland</region></placeName></affiliation></author><author><name sortKey="Siala, Mariam" sort="Siala, Mariam" uniqKey="Siala M" first="Mariam" last="Siala">Mariam Siala</name><affiliation wicri:level="1"><nlm:affiliation>Department of Life Sciences, Research Laboratory of Environmental Toxicology-Microbiology and Health (LR17ES06), Faculty of Sciences, University of Sfax, Sfax, Tunisia; Department of Biology, Preparatory Institute for Engineering Studies of Sfax, University of Sfax, Tunisia. Electronic address: amal_bh1@yahoo.fr.</nlm:affiliation><country xml:lang="fr">Tunisie</country><wicri:regionArea>Department of Life Sciences, Research Laboratory of Environmental Toxicology-Microbiology and Health (LR17ES06), Faculty of Sciences, University of Sfax, Sfax, Tunisia; Department of Biology, Preparatory Institute for Engineering Studies of Sfax, University of Sfax</wicri:regionArea><wicri:noRegion>University of Sfax</wicri:noRegion></affiliation></author></analytic><series><title level="j">International journal of food microbiology</title><idno type="eISSN">1879-3460</idno><imprint><date when="2021" type="published">2021</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Drug Resistance, Bacterial (genetics)</term><term>Genome, Bacterial (genetics)</term><term>Multilocus Sequence Typing (methods)</term><term>Phylogeny (MeSH)</term><term>Salmonella (classification)</term><term>Salmonella (genetics)</term><term>Salmonella (pathogenicity)</term><term>Serogroup (MeSH)</term><term>Serotyping (MeSH)</term><term>Tunisia (MeSH)</term><term>Virulence (genetics)</term><term>Whole Genome Sequencing (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term><term>Génome bactérien (génétique)</term><term>Phylogenèse (MeSH)</term><term>Résistance bactérienne aux médicaments (génétique)</term><term>Salmonella (classification)</term><term>Salmonella (génétique)</term><term>Salmonella (pathogénicité)</term><term>Séquençage du génome entier (MeSH)</term><term>Sérogroupe (MeSH)</term><term>Sérotypie (MeSH)</term><term>Tunisie (MeSH)</term><term>Typage par séquençage multilocus (méthodes)</term><term>Virulence (génétique)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Tunisia</term></keywords><keywords scheme="MESH" qualifier="classification" xml:lang="en"><term>Salmonella</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Drug Resistance, Bacterial</term><term>Genome, Bacterial</term><term>Salmonella</term><term>Virulence</term></keywords><keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Génome bactérien</term><term>Résistance bactérienne aux médicaments</term><term>Salmonella</term><term>Virulence</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Multilocus Sequence Typing</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Typage par séquençage multilocus</term></keywords><keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Salmonella</term></keywords><keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr"><term>Salmonella</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Phylogeny</term><term>Serogroup</term><term>Serotyping</term><term>Whole Genome Sequencing</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Phylogenèse</term><term>Salmonella</term><term>Séquençage du génome entier</term><term>Sérogroupe</term><term>Sérotypie</term><term>Tunisie</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Tunisie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Whole genome sequencing (WGS) has made impressive progress in the field of molecular biology. Its most common application for public health is in the area of surveillance of food-borne diseases. WGS has the potential for providing a large amount of information, such as the identification of the strain type, the characterization of antibiotic resistance and virulence, and phylogeny. In our study, thirty-nine non-typhoidal Salmonella strains were isolated from diverse sources in Tunisia. Non-typhoidal Salmonella are among the most common pathogens contaminating food animals. The presence of virulence and antimicrobial resistance determinants in those strains were investigated using whole genome sequencing (WGS) and appropriate data analysis. The genomes were screened for several Salmonella virulence genes using the Virulence Factor Database VFDB. Twelve different virulence profiles, which correspond to the 12 identified serovars, were recognized. Several antimicrobial resistance genes were also detected: aac (6')-Iaa, sul1, tetA, bla-TEM and qnrS genes. Phylogenetic relationships among the strains were further assessed by a cgMLST analysis. The resulting phylogenetic tree consisted of several clusters consistently with the in silico multilocus sequence typing (MLST) and serotyping. Our findings demonstrated that WGS and subsequent data analysis provided an accurate tool for genetic characterization of bacterial strains compared to usual molecular typing techniques. To the best of our knowledge, this is the first report of an application of WGS for genetic characterization of food-borne Tunisian strains.</div></front></TEI><affiliations><list><country><li>Tunisie</li><li>États-Unis</li></country><region><li>Maryland</li></region></list><tree><country name="Tunisie"><noRegion><name sortKey="Ben Hassena, Amal" sort="Ben Hassena, Amal" uniqKey="Ben Hassena A" first="Amal" last="Ben Hassena">Amal Ben Hassena</name></noRegion><name sortKey="Gdoura, Radhouane" sort="Gdoura, Radhouane" uniqKey="Gdoura R" first="Radhouane" last="Gdoura">Radhouane Gdoura</name><name sortKey="Guermazi, Sonda" sort="Guermazi, Sonda" uniqKey="Guermazi S" first="Sonda" last="Guermazi">Sonda Guermazi</name><name sortKey="Siala, Mariam" sort="Siala, Mariam" uniqKey="Siala M" first="Mariam" last="Siala">Mariam Siala</name><name sortKey="Zormati, Sonia" sort="Zormati, Sonia" uniqKey="Zormati S" first="Sonia" last="Zormati">Sonia Zormati</name></country><country name="États-Unis"><region name="Maryland"><name sortKey="Haendiges, Julie" sort="Haendiges, Julie" uniqKey="Haendiges J" first="Julie" last="Haendiges">Julie Haendiges</name></region><name sortKey="Gonzalez Escalona, Narjol" sort="Gonzalez Escalona, Narjol" uniqKey="Gonzalez Escalona N" first="Narjol" last="Gonzalez-Escalona">Narjol Gonzalez-Escalona</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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