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Exploring the Genomic Traits of Non-toxigenic Vibrio parahaemolyticus Strains Isolated in Southern Chile

Overview of attention for article published in Frontiers in Microbiology, February 2018
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Title
Exploring the Genomic Traits of Non-toxigenic Vibrio parahaemolyticus Strains Isolated in Southern Chile
Published in
Frontiers in Microbiology, February 2018
DOI 10.3389/fmicb.2018.00161
Pubmed ID
Authors

Daniel Castillo, Diliana Pérez-Reytor, Nicolás Plaza, Sebastián Ramírez-Araya, Carlos J. Blondel, Gino Corsini, Roberto Bastías, David E. Loyola, Víctor Jaña, Leonardo Pavez, Katherine García

Abstract

Vibrio parahaemolyticus is the leading cause of seafood-borne gastroenteritis worldwide. As reported in other countries, after the rise and fall of the pandemic strain in Chile, other post-pandemic strains have been associated with clinical cases, including strains lacking the major toxins TDH and TRH. Since the presence or absence oftdhandtrhgenes has been used for diagnostic purposes and as a proxy of the virulence ofV. parahaemolyticusisolates, the understanding of virulence inV. parahaemolyticusstrains lacking toxins is essential to detect these strains present in water and marine products to avoid possible food-borne infection. In this study, we characterized the genome of four environmental and two clinical non-toxigenic strains (tdh-,trh-, and T3SS2-). Using whole-genome sequencing, phylogenetic, and comparative genome analysis, we identified the core and pan-genome ofV. parahaemolyticusof strains of southern Chile. The phylogenetic tree based on the core genome showed low genetic diversity but the analysis of the pan-genome revealed that all strains harbored genomic islands carrying diverse virulence and fitness factors or prophage-like elements that encode toxins like Zot and RTX. Interestingly, the three strains carrying Zot-like toxin have a different sequence, although the alignment showed some conserved areas with thezotsequence found inV. cholerae. In addition, we identified an unexpected diversity in the genetic architecture of the T3SS1 gene cluster and the presence of the T3SS2 gene cluster in a non-pandemic environmental strain. Our study sheds light on the diversity ofV. parahaemolyticusstrains from the southern Pacific which increases our current knowledge regarding the global diversity of this organism.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 53 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 10 19%
Student > Master 10 19%
Student > Ph. D. Student 5 9%
Student > Doctoral Student 4 8%
Other 3 6%
Other 9 17%
Unknown 12 23%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 10 19%
Agricultural and Biological Sciences 9 17%
Immunology and Microbiology 7 13%
Environmental Science 3 6%
Engineering 3 6%
Other 5 9%
Unknown 16 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 February 2018.
All research outputs
#18,589,103
of 23,025,074 outputs
Outputs from Frontiers in Microbiology
#19,574
of 25,149 outputs
Outputs of similar age
#329,486
of 439,455 outputs
Outputs of similar age from Frontiers in Microbiology
#421
of 513 outputs
Altmetric has tracked 23,025,074 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
So far Altmetric has tracked 25,149 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.3. This one is in the 9th percentile – i.e., 9% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 439,455 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 14th percentile – i.e., 14% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 513 others from the same source and published within six weeks on either side of this one. This one is in the 7th percentile – i.e., 7% of its contemporaries scored the same or lower than it.