Complete Genome Sequence of Vibrio rotiferianus Strain AM7.
ABSTRACT: We isolated the novel strain Vibrio rotiferianus AM7 from the shell of an abalone. In this article, we report the complete genome sequence of this organism, which was obtained by combining Oxford Nanopore long-read and Illumina short-read sequencing data.
Project description:We present the complete genome sequence of Vibrio campbellii DS40M4, assembled from Illumina and Oxford Nanopore data. This effort improves upon a previous draft assembly to resolve this organism's two-chromosome and one-plasmid genetic structure and to provide valuable context for evaluating the gene arrangement and evolution of this species.
Project description:Vibrio campbellii is a pathogen of aquatic animals and has been proposed as a bacterial partner in the formation of bioluminescent milky seas. We present here the complete genome sequences assembled from Illumina and Oxford Nanopore data for two bioluminescent Vibrio campbellii strains (BoB-53 and BoB-90) isolated from biofouled moorings in the Bay of Bengal.
Project description:Vibrio rotiferianus is a marine pathogen capable of causing disease in various aquatic organisms. We announce the genome sequence of V. rotiferianus DAT722, which has a large chromosomal integron containing 116 gene cassettes and is a model organism for studying the role of this system in vibrio evolution.
Project description:Vibrio cholerae is a halophilic Gram-negative bacterial species and the etiological agent of cholera. Here, we report the draft genome sequence of an environmental V. cholerae strain, 2012Env-25, obtained using Oxford Nanopore Technologies (ONT) to provide insights into the ecology, evolution, and pathogenic potential of this bacterium.
Project description:BACKGROUND:The recently published complete mitogenome of the European lobster (Homarus gammarus) that was generated using long-range PCR exhibits unusual gene composition (missing nad2) and gene rearrangements among decapod crustaceans with strong implications in crustacean phylogenetics. Such atypical mitochondrial features will benefit greatly from validation with emerging long read sequencing technologies such as Oxford Nanopore that can more accurately identify structural variation. RESULTS:We re-sequenced the H. gammarus mitogenome on an Oxford Nanopore Minion flowcell and performed a long-read only assembly, generating a complete mitogenome assembly for H. gammarus. In contrast to previous reporting, we found an intact mitochondrial nad2 gene in the H. gammarus mitogenome and showed that its gene organization is broadly similar to that of the American lobster (H. americanus) except for the presence of a large tandemly duplicated region with evidence of pseudogenization in one of each duplicated protein-coding genes. CONCLUSIONS:Using the European lobster as an example, we demonstrate the value of Oxford Nanopore long read technology in resolving problematic mitogenome assemblies. The increasing accessibility of Oxford Nanopore technology will make it an attractive and useful tool for evolutionary biologists to verify new and existing unusual mitochondrial gene rearrangements recovered using first and second generation sequencing technologies, particularly those used to make phylogenetic inferences of evolutionary scenarios.
Project description:Staphylococcus arlettae is one coagulase-negative species in the bacterial genus Staphylococcus Here, we describe the closed complete genome sequence of S. arlettae strain P2, which was obtained using a hybrid approach combining Oxford Nanopore long-read and Illumina MiSeq short-read sequencing data.
Project description:Rubrobacter xylanophilus strain AA3-22, belonging to the phylum Actinobacteria, was isolated from nonvolcanic Arima Onsen (hot spring) in Japan. Here, we report the complete genome sequence of this organism, which was obtained by combining Oxford Nanopore long-read and Illumina short-read sequencing data.
Project description:Complete genome resequencing was conducted for Thermus thermophilus strain TMY by hybrid assembly of Oxford Nanopore Technologies long-read and MGI short-read data. Errors in the previously reported genome sequence determined by PacBio technology alone were corrected, allowing for high-quality comparative genomic analysis of closely related T. thermophilus genomes.
Project description:Background:The Oxford Nanopore Technologies MinION(TM) is a mobile DNA sequencer that can produce long read sequences with a short turn-around time. Here we report the first demonstration of single contig genome assembly using Oxford Nanopore native barcoding when applied to a multiplexed library of 12 samples and combined with existing Illumina short read data. This paves the way for the closure of multiple bacterial genomes from a single MinION(TM) sequencing run, given the availability of existing short read data. The strain we used, MHO_001, represents the important community-acquired methicillin-resistant Staphylococcus aureus lineage USA300. Findings:Using a hybrid assembly of existing short read and barcoded long read sequences from multiplexed data, we completed a genome of the S. aureus USA300 strain MHO_001. The long read data represented only ?5% to 10% of an average MinION(TM) run (?7x genomic coverage), but, using standard tools, this was sufficient to complete the circular chromosome of S. aureus strain MHO_001 (2.86 Mb) and two complete plasmids (27 Kb and 3 Kb). Minor differences were noted when compared to USA300 reference genome, USA300_FPR3757, including the translocation, loss, and gain of mobile genetic elements. Conclusion:Here we demonstrate that MinION(TM) reads, multiplexed using native barcoding, can be used in combination with short read data to fully complete a bacterial genome. The ability to complete multiple genomes, for which short read data is already available, from a single MinION(TM) run is set to impact our understanding of accessory genome content, plasmid diversity, and genome rearrangements.