DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Exception to the Rule: Genomic Characterization of Naturally Occurring Unusual Vibrio cholerae Strains with a Single Chromosome

Journal Article · · International Journal of Genomics

Here, the genetic make-up of most bacteria is encoded in a single chromosome while about 10% have more than one chromosome. Among these, Vibrio cholerae, with two chromosomes, has served as a model system to study various aspects of chromosome maintenance, mainly replication, and faithful partitioning of multipartite genomes. Here, we describe the genomic characterization of strains that are an exception to the two chromosome rules: naturally occurring single-chromosome V. cholerae. Whole genome sequence analyses of NSCV1 and NSCV2 (natural single-chromosome vibrio) revealed that the Chr1 and Chr2 fusion junctions contain prophages, IS elements, and direct repeats, in addition to large-scale chromosomal rearrangements such as inversions, insertions, and long tandem repeats elsewhere in the chromosome compared to prototypical two chromosome V. cholerae genomes. Many of the known cholera virulence factors are absent. The two origins of replication and associated genes are generally intact with synonymous mutations in some genes, as arerecAand mismatch repair (MMR) genes dam, mutH, and mutL; MutS function is probably impaired in NSCV2. These strains are ideal tools for studying mechanistic aspects of maintenance of chromosomes with multiple origins and other rearrangements and the biological, functional, and evolutionary significance of multipartite genome architecture in general.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
Defense Threat Reduction Agency (DTRA); USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1398918
Report Number(s):
LA-UR-17-21600
Journal Information:
International Journal of Genomics, Vol. 2017; ISSN 2314-436X
Publisher:
HindawiCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (63)

Chromosome I Controls Chromosome II Replication in Vibrio cholerae journal February 2014
Versatile and open software for comparing large genomes journal January 2004
The Pfam Protein Families Database journal January 2002
Genome Project Standards in a New Era of Sequencing journal October 2009
DNA Adenine Methylation Is Required to Replicate Both Vibrio cholerae Chromosomes Once per Cell Cycle journal May 2010
DNAPlotter: circular and linear interactive genome visualization journal November 2008
A probabilistic method for identifying start codons in bacterial genomes journal December 2001
Distribution of Centromere-Like parS Sites in Bacteria: Insights from Comparative Genomics journal September 2007
Distinct Centromere-Like parS Sites on the Two Chromosomes of Vibrio spp. journal May 2007
KEGG: Kyoto Encyclopedia of Genes and Genomes journal January 2000
par genes and the pathology of chromosome loss in Vibrio cholerae journal December 2006
Genetic recombination and the cell cycle: what we have learned from chromosome dimers: Genetic recombination and the cell cycle journal October 2004
Vibrio cholerae O1 Isolate with Novel Genetic Background, Thailand–Myanmar journal June 2013
The two chromosomes of Vibrio cholerae are initiated at different time points in the cell cycle journal June 2007
Mauve: Multiple Alignment of Conserved Genomic Sequence With Rearrangements journal June 2004
Solexa Ltd journal June 2004
Genome Engineering in Vibrio cholerae: A Feasible Approach to Address Biological Issues journal January 2012
Scanning the Landscape of Genome Architecture of Non-O1 and Non-O139 Vibrio cholerae by Whole Genome Mapping Reveals Extensive Population Genetic Diversity journal March 2015
Gapped BLAST and PSI-BLAST: a new generation of protein database search programs journal September 1997
BLAST Ring Image Generator (BRIG): simple prokaryote genome comparisons journal August 2011
tRNAscan-SE: A Program for Improved Detection of Transfer RNA Genes in Genomic Sequence journal March 1997
CRISPR Provides Acquired Resistance Against Viruses in Prokaryotes journal March 2007
Extended serotyping scheme forVibrio cholerae journal March 1994
DNA sequence of both chromosomes of the cholera pathogen Vibrio cholerae journal August 2000
MicroReview: Divided genomes: negotiating the cell cycle in prokaryotes with multiple chromosomes: Multiple chromosomes in prokaryotes journal March 2005
Inverted Repeat Structure of the Human Genome: The X-Chromosome Contains a Preponderance of Large, Highly Homologous Inverted Repeats That Contain Testes Genes journal September 2004
Replication patterns and organization of replication forks in Vibrio cholerae journal March 2011
Velvet: Algorithms for de novo short read assembly using de Bruijn graphs journal February 2008
Enabling the democratization of the genomics revolution with a fully integrated web-based bioinformatics platform journal November 2016
The InterPro Database, 2003 brings increased coverage and new features journal January 2003
progressiveMauve: Multiple Genome Alignment with Gene Gain, Loss and Rearrangement journal June 2010
Gene Fitness Landscapes of Vibrio cholerae at Important Stages of Its Life Cycle journal December 2013
The TIGRFAMs database of protein families journal January 2003
Tandem repeats finder: a program to analyze DNA sequences journal January 1999
IslandViewer 3: more flexible, interactive genomic island discovery, visualization and analysis: Figure 1. journal April 2015
Complete Genome Assemblies for Two Single-Chromosome Vibrio cholerae Isolates, Strains 1154-74 (Serogroup O49) and 10432-62 (Serogroup O27) journal May 2015
Development of joint application strategies for two microbial gene finders journal February 2004
Accelerated growth in the absence of DNA replication origins journal November 2013
A checkpoint control orchestrates the replication of the two chromosomes of Vibrio cholerae journal April 2016
High-resolution definition of the Vibrio cholerae essential gene set with hidden Markov model–based analyses of transposon-insertion sequencing data journal July 2013
Fuse or die: how to survive the loss of Dam in V ibrio cholerae : Natural fusion of journal January 2014
A defined transposon mutant library and its use in identifying motility genes in Vibrio cholerae journal June 2008
Independent Control of Replication Initiation of the Two Vibrio cholerae Chromosomes by DnaA and RctB journal August 2006
Determination of the transcriptome of Vibrio cholerae during intraintestinal growth and midexponential phase in vitro journal January 2003
Management of multipartite genomes: the Vibrio cholerae model journal December 2014
FtsK-Dependent Dimer Resolution on Multiple Chromosomes in the Pathogen Vibrio cholerae journal September 2008
The Two Cis-Acting Sites, parS1 and oriC1, Contribute to the Longitudinal Organisation of Vibrio cholerae Chromosome I journal July 2014
Comparative Genomic Characterization of a Thailand–Myanmar Isolate, MS6, of Vibrio cholerae O1 El Tor, Which Is Phylogenetically Related to a “US Gulf Coast” Clone journal June 2014
The Three Vibrio cholerae Chromosome II-Encoded ParE Toxins Degrade Chromosome I following Loss of Chromosome II journal November 2010
ATP negatively regulates the initiator protein of Vibrio cholerae chromosome II replication journal July 2008
Genome sequencing in microfabricated high-density picolitre reactors journal July 2005
The SWISS-PROT protein knowledgebase and its supplement TrEMBL in 2003 journal January 2003
The COG database: an updated version includes eukaryotes journal January 2003
ACT: the Artemis comparison tool journal June 2005
Chromosome dynamics in multichromosome bacteria journal July 2012
Transition from a plasmid to a chromosomal mode of replication entails additional regulators journal March 2011
PHAST: A Fast Phage Search Tool journal June 2011
Comprehensive Functional Analysis of the 18 Vibrio cholerae N16961 Toxin-Antitoxin Systems Substantiates Their Role in Stabilizing the Superintegron journal April 2015
Fast algorithms for large-scale genome alignment and comparison journal June 2002
Host-induced epidemic spread of the cholera bacterium journal June 2002
The Vibrio cholerae genome contains two unique circular chromosomes journal November 1998
Differential Management of the Replication Terminus Regions of the Two Vibrio cholerae Chromosomes during Cell Division journal September 2014
SlmA, a Nucleoid-Associated, FtsZ Binding Protein Required for Blocking Septal Ring Assembly over Chromosomes in E. coli journal May 2005

Cited By (3)

Evolution of Genome Architecture in Archaea: Spontaneous Generation of a New Chromosome in Haloferax volcanii journal April 2018
Single Circular Chromosome Identified from the Genome Sequence of the Vibrio cholerae O1 bv. El Tor Ogawa Strain V060002 journal June 2018
Establishing a System for Testing Replication Inhibition of the Vibrio cholerae Secondary Chromosome in Escherichia coli journal December 2017