Interspecies Transmission of CMY-2-Producing Escherichia coli Sequence Type 963 Isolates between Humans and Gulls in Australia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16270%2F22%3A43880036" target="_blank" >RIV/62157124:16270/22:43880036 - isvavai.cz</a>
Alternative codes found
RIV/62157124:16810/22:43880036 RIV/62690094:18470/22:50019289 RIV/65269705:_____/22:00077568 RIV/00216208:11140/22:10445475
Result on the web
<a href="https://journals.asm.org/doi/reader/10.1128/msphere.00238-22" target="_blank" >https://journals.asm.org/doi/reader/10.1128/msphere.00238-22</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1128/msphere.00238-22" target="_blank" >10.1128/msphere.00238-22</a>
Alternative languages
Result language
angličtina
Original language name
Interspecies Transmission of CMY-2-Producing Escherichia coli Sequence Type 963 Isolates between Humans and Gulls in Australia
Original language description
Escherichia coli sequence type 963 (ST963) is a neglected lineage closely related to ST38, a globally widespread extraintestinal pathogenic ST causing urinary tract infections (UTI) as well as sepsis in humans. Our current study aimed to improve the knowledge of this understudied ST by carrying out a comprehensive comparative analysis of whole-genome sequencing data consisting of 31 isolates from silver gulls in Australia along with another 80 genomes from public resources originating from geographically scattered regions. ST963 was notable for carriage of cephalosporinase gene bla(CMY-2), which was identified in 99 isolates and was generally chromosomally encoded. ST963 isolates showed otherwise low carriage of antibiotic resistance genes, in contrast with the closely related E. coli ST38. We found considerable phylogenetic variability among international ST963 isolates (up to 11,273 single nucleotide polymorphisms [SNPs]), forming three separate clades. A major clade that often differed by 20 SNPs or less consisted of Australian isolates of both human and animal origin, providing evidence of zoonotic or zooanthropogenic transmission. There was a high prevalence of virulence F29:A-:B10 pUTI89-like plasmids within E. coli ST963 (n = 88), carried especially by less variable isolates exhibiting <= 1,154 SNPs. We characterized a novel 115,443-bp pUTI89-like plasmid, pCE2050_A, that carried a traS:IS5 insertion absent from pUTI89. Since IS5 was also present in a transposition unit bearing bla(CMY-2) on chromosomes of ST963 strains, IS5 insertion into pUTI89 may enable mobilization of the bla(CMY-2) gene from the chromosome/transposition unit to pUTI89 via homologous recombination. IMPORTANCE We have provided the first comprehensive genomic study of E. coli ST963 by analyzing various genomic and phenotypic data sets of isolates from Australian silver gulls and comparison with genomes from geographically dispersed regions of human and animal origin. Our study suggests the emergence of a specific bla(CMY-2)-carrying E. coli ST963 clone in Australia that is widely spread across the continent by humans and birds. Genomic analysis has revealed that ST963 is a globally dispersed lineage with a remarkable set of virulence genes and virulence plasmids described in uropathogenic E. coli. While ST963 separated into three clusters, a unique specific clade of Australian ST963 isolates harboring a chromosomal copy of AmpC beta-lactamase encoding the gene bla(CMY-2) and originating from both humans and wild birds was identified. This phylogenetically close cluster comprised isolates of both animal and human origin, thus providing evidence of interspecies zoonotic transmission. The analysis of the genetic environment of the AmpC beta-lactamase-encoding gene highlighted ongoing evolutionary events that shape the carriage of this gene in ST963.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
mSphere
ISSN
2379-5042
e-ISSN
2379-5042
Volume of the periodical
7
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
nestrankovano
UT code for WoS article
000820970100001
EID of the result in the Scopus database
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