Dataset Information

Draft Genome Sequences of Chryseobacterium lactis NCTC11390T Isolated from Milk, Chryseobacterium oncorhynchi 701B-08T from Rainbow Trout, and Chryseobacterium viscerum 687B-08T from Diseased Fish.

ABSTRACT: The genus Chryseobacterium, belonging to the family Flavobacteriaceae, contains Gram-negative, yellow-pigmented, rod-shaped, and non-spore-forming bacterial species, which may be free living or parasitic. Here, we report draft genome sequences of type strains of three species of Chryseobacterium containing genes related to biological control and plant growth promotion.

SUBMITTER: Jeong JJ

PROVIDER: S-EPMC6025947 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Publications

Draft Genome Sequences of Chryseobacterium lactis NCTC11390T Isolated from Milk, Chryseobacterium oncorhynchi 701B-08T from Rainbow Trout, and Chryseobacterium viscerum 687B-08T from Diseased Fish.

Jeong Jin-Ju JJ Lee Ye Ji YJ Pathiraja Duleepa D Park Byeonghyeok B Choi In-Geol IG Kim Ki Deok KD

Genome announcements 20180628 26

The genus Chryseobacterium, belonging to the family Flavobacteriaceae, contains Gram-negative, yellow-pigmented, rod-shaped, and non-spore-forming bacterial species, which may be free living or parasitic. Here, we report draft genome sequences of type strains of three species of Chryseobacterium containing genes related to biological control and plant growth promotion. ...[more]

PMID: 29954917

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Project description:BACKGROUND: Rainbow trout (Oncorhynchus mykiss) are cultivated worldwide for aquaculture production and are widely used as a model species to gain knowledge of many aspects of fish biology. The common ancestor of the salmonids experienced a whole genome duplication event, making extant salmonids such as the rainbow trout an excellent model for studying the evolution of tetraploidization and re-diploidization in vertebrates. However, the lack of a reference genome sequence hampers research progress for both academic and applied purposes. In order to enrich the genomic tools already available in this species and provide further insight on the complexity of its genome, we sequenced a large number of rainbow trout BAC-end sequences (BES) and characterized their contents. RESULTS: A total of 176,485 high quality BES, were generated, representing approximately 4% of the trout genome. BES analyses identified 6,848 simple sequence repeats (SSRs), of which 3,854 had high quality flanking sequences for PCR primers design. The first rainbow trout repeat elements database (INRA RT rep1.0) containing 735 putative repeat elements was developed, and identified almost 59.5% of the BES database in base-pairs as repetitive sequence. Approximately 55% of the BES reads (97,846) had more than 100 base pairs of contiguous non-repetitive sequences. The fractions of the 97,846 non-repetitive trout BES reads that had significant BLASTN hits against the zebrafish, medaka and stickleback genome databases were 15%, 16.2% and 17.9%, respectively, while the fractions of the non-repetitive BES reads that had significant BLASTX hits against the zebrafish, medaka, and stickleback protein databases were 10.7%, 9.5% and 9.5%, respectively. Comparative genomics using paired BAC-ends revealed several regions of conserved synteny across all the fish species analyzed in this study. CONCLUSIONS: The characterization of BES provided insights on the rainbow trout genome. The discovery of specific repeat elements will facilitate analyses of sequence content (e.g. for SNPs discovery and for transcriptome characterization) and future genome sequence assemblies. The numerous microsatellites will facilitate integration of the linkage and physical maps and serve as valuable resource for fine mapping QTL and positional cloning of genes affecting aquaculture production traits. Furthermore, comparative genomics through BES can be used for identifying positional candidate genes from QTL mapping studies, aid in future assembly of a reference genome sequence and elucidating sequence content and complexity in the rainbow trout genome.

Dataset Information

Draft Genome Sequences of Chryseobacterium lactis NCTC11390T Isolated from Milk, Chryseobacterium oncorhynchi 701B-08T from Rainbow Trout, and Chryseobacterium viscerum 687B-08T from Diseased Fish.

Publications

Draft Genome Sequences of Chryseobacterium lactis NCTC11390<sup>T</sup> Isolated from Milk, Chryseobacterium oncorhynchi 701B-08<sup>T</sup> from Rainbow Trout, and Chryseobacterium viscerum 687B-08<sup>T</sup> from Diseased Fish.

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