Occurrence and significance of pathogenicity and fitness islands in environmental vibrios
Abstract Pathogenicity islands (PAIs) are large genomic regions that contain virulence genes, which aid pathogens in establishing infections. While PAIs in clinical strains (strains isolated from a human infection) are well-studied, less is known about the occurrence of PAIs in strains isolated from...
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doaj-319eb770971a4b74917ddfd1f21895c22020-11-25T01:53:19ZengSpringerOpenAMB Express2191-08552018-10-01811710.1186/s13568-018-0704-2Occurrence and significance of pathogenicity and fitness islands in environmental vibriosSavannah Klein0Shannon Pipes1Charles R. Lovell2Department of Biological Sciences, University of South CarolinaDepartment of Biological Sciences, University of South CarolinaDepartment of Biological Sciences, University of South CarolinaAbstract Pathogenicity islands (PAIs) are large genomic regions that contain virulence genes, which aid pathogens in establishing infections. While PAIs in clinical strains (strains isolated from a human infection) are well-studied, less is known about the occurrence of PAIs in strains isolated from the environment. In this study we describe three PAIs found in environmental Vibrio vulnificus and Vibrio parahaemolyticus strains, as well as a genomic fitness island found in a Vibrio diabolicus strain. All four islands had markedly different GC profiles than the rest of the genome, indicating that all of these islands were acquired via lateral gene transfer. Genes on the PAIs and fitness island were characterized. The PAI found in V. parahaemolyticus contained the tdh gene, a collagenase gene, and genes involved in the type 3 secretion system II (T3SS2). A V. vulnificus environmental strain contained two PAIs, a small 25 kbp PAI and a larger 143 kbp PAI. Both PAIs contained virulence genes. Toxin–antitoxin (TA) genes were found in all three species: on the V. diabolicus fitness island, and on the V. parahaemolyticus and V. vulnificus PAIs.http://link.springer.com/article/10.1186/s13568-018-0704-2Vibrio parahaemolyticusVibrio vulnificusPathogenicity islands |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Savannah Klein Shannon Pipes Charles R. Lovell |
spellingShingle |
Savannah Klein Shannon Pipes Charles R. Lovell Occurrence and significance of pathogenicity and fitness islands in environmental vibrios AMB Express Vibrio parahaemolyticus Vibrio vulnificus Pathogenicity islands |
author_facet |
Savannah Klein Shannon Pipes Charles R. Lovell |
author_sort |
Savannah Klein |
title |
Occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
title_short |
Occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
title_full |
Occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
title_fullStr |
Occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
title_full_unstemmed |
Occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
title_sort |
occurrence and significance of pathogenicity and fitness islands in environmental vibrios |
publisher |
SpringerOpen |
series |
AMB Express |
issn |
2191-0855 |
publishDate |
2018-10-01 |
description |
Abstract Pathogenicity islands (PAIs) are large genomic regions that contain virulence genes, which aid pathogens in establishing infections. While PAIs in clinical strains (strains isolated from a human infection) are well-studied, less is known about the occurrence of PAIs in strains isolated from the environment. In this study we describe three PAIs found in environmental Vibrio vulnificus and Vibrio parahaemolyticus strains, as well as a genomic fitness island found in a Vibrio diabolicus strain. All four islands had markedly different GC profiles than the rest of the genome, indicating that all of these islands were acquired via lateral gene transfer. Genes on the PAIs and fitness island were characterized. The PAI found in V. parahaemolyticus contained the tdh gene, a collagenase gene, and genes involved in the type 3 secretion system II (T3SS2). A V. vulnificus environmental strain contained two PAIs, a small 25 kbp PAI and a larger 143 kbp PAI. Both PAIs contained virulence genes. Toxin–antitoxin (TA) genes were found in all three species: on the V. diabolicus fitness island, and on the V. parahaemolyticus and V. vulnificus PAIs. |
topic |
Vibrio parahaemolyticus Vibrio vulnificus Pathogenicity islands |
url |
http://link.springer.com/article/10.1186/s13568-018-0704-2 |
work_keys_str_mv |
AT savannahklein occurrenceandsignificanceofpathogenicityandfitnessislandsinenvironmentalvibrios AT shannonpipes occurrenceandsignificanceofpathogenicityandfitnessislandsinenvironmentalvibrios AT charlesrlovell occurrenceandsignificanceofpathogenicityandfitnessislandsinenvironmentalvibrios |
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