• Korean Journal of Microbiology
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• v.54 no.1
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• pp.79-80
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• 2018

Citrobacter freundii is a facultative anaerobic and a Gram-negative bacterium of Enterobacteriaceae family, and is an opportunistic pathogen. Bacteriophages infecting C. freundii can be an effective treatment for C. freundii infections. Here, the complete genomic sequence is announced for a lytic bacteriophage CF1 infecting C. freundii isolates.

• Korean Journal of Microbiology
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• v.53 no.4
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• pp.340-341
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• 2017

Acidovorax citrulli is a causal agent for bacterial fruit blotch on watermelon. Here, we report the complete genome sequence of A. citrulli strain KACC17005. The genome contains 5,349,924 bp with G + C contents of 68.54%, including 4,520 protein coding genes in a circular chromosome. It also possesses at least 15 genes encoding putative type III effector proteins, which may contribute to promoting virulence in susceptible hosts or triggering immune responses in resistant hosts.

• Korean Journal of Microbiology
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• v.55 no.2
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• pp.167-170
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• 2019

Pantoea intestinalis SRCM103226, isolated from edible insect mealworm overproduces zeaxanthin as a main carotenoid. The complete genome of P. intestinalis SRCM103226 was sequenced using the Pacific Biosciences (PacBio) RS II platform. The genome of P. intestinalis SRCM103226 comprises a 4,784,919 bp circular chromosome (53.41% G+C content), and is devoid of any extrachromosomal plasmids. Annotation using the RAST server reveals 4,332 coding sequences and 107 RNAs (22 rRNA genes, 85 tRNA genes). Genome annotation analysis revealed that it has five genes involved in the carotenoid pathway. The genome information provides fundamental knowledge for comparative genomics studies of the zeaxanthin pathway.

• Journal of Animal Science and Technology
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• v.62 no.6
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• pp.948-951
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• 2020

Treponema phagedenis KS1, a fastidious anaerobe, was isolated from a bovine digital dermatitis (BDD)-infected dairy cattle in Chungnam, Korea. Initial data indicated that T. phagedenis KS1 exhibited putative virulent phenotypic characteristics. This study reports the whole genome assembly and annotation of T. phagedenis KS1 (KCTC14157BP) to assist in the identification of putative pathogenicity related factors. The whole genome of T. phagedenis KS1 was sequenced using PacBio RSII and Illumina HiSeqXTen platforms. The assembled T. phagedenis KS1 genome comprises 16 contigs with a total size of 3,769,422 bp and an overall guanine-cytosine (GC) content of 40.03%. Annotation revealed 3,460 protein-coding genes, as well as 49 transfer RNA- and 6 ribosomal RNA-coding genes. The results of this study provide insight into the pathogenicity of T. phagedenis KS1.

• Journal of Animal Science and Technology
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• v.63 no.1
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• pp.194-197
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• 2021

Salmonella enterica is a representative foodborne pathogen in the world. The S. enterica strain K_SA184 was isolated from the lamb (Ovis aries), which was collected from a local traditional market in South Korea. In this study, the S. enterica strain K_SA184 was sequenced using PacBio RS II and Illumina NextSeq 500 platforms. The final complete genome of the S. enterica strain K_SA184 consist of one circular chromosome (4,725,087 bp) with 52.3% of guanine + cytosine (G + C) content, 4,363 of coding sequence (CDS), 85 of tRNA, and 22 of rRNA genes. The S. enterica strain K_SA184 genome includes encoding virulence genes, such as Type III secretion systems and multidrug resistance related genes.

• Journal of Animal Science and Technology
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• v.63 no.2
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• pp.461-464
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• 2021

Escherichia coli normally colonizes the lower intestine of animals and humans, but some serotypes are foodborne pathogens. The Escherichia coli K_EC180 was isolated from swine feces that were collected from a weaner pig. In this genome announcement, E. coli K_EC180 was sequenced using PacBio RS II and Illumina NextSeq 500 platforms. The complete chromosome of E. coli K_EC180 is composed of one circular chromosome (5,017,281 bp) with 50.4% of guanine + cytosine (G + C) content, 4,935 of coding sequence (CDS), 88 of tRNA, and 22 of rRNA genes. The complete genome of E. coli K_EC180 contains the toxin genes such as shiga-like toxins (stxA and stxB).

• Journal of Animal Science and Technology
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• v.64 no.1
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• pp.183-186
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• 2022

Lactiplantibacillus plantarum (L. plantarum) ST was isolated from De'ang pickled tea in Yunnan Province, China. The genomes of strain ST were fully sequenced and analyzed using the PacBio RS II sequencing system. Our previous study has shown that L. plantarum ST is a potential probiotic strain. It had strong tolerance in the simulated artificial gastrointestinal tract, and in the antagonism tests, this strain showed strong antibacterial activity. Therefore, as a probiotic, it may be used in animal breeding. L. plantarum ST genome was composed of 1 circular chromosome and 7 plasmids. The length of the whole genome was 3320817 bp, and the annular chromosome size was 3058984 bp, guanine + cytosine (G ± C) content (%) was 44.76%, which contained 2945 protein-coding sequences (CDS). This study will contribute to a further comprehensive understanding of L. Plantarum ST at the genomic level and provide a theoretical basis for its future application in animal breeding.

• Korean Journal of Plant Taxonomy
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• v.53 no.3
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• pp.181-200
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• 2023

Owing to the rapid development of sequencing technologies, more than 1,000 plant genomes have been sequenced and released. Among them, 69 Korean plant taxa (85 genome sequences) contain at least one whole-genome sequence despite the fact that some samples were not collected in Korea. The sequencing-by-synthesis method (next-generation sequencing) and the PacBio (third-generation sequencing) method were the most commonly used in studies appearing in 65 publications. Several scaffolding methods, such as the Hi-C and 10x types, have also been used for pseudo-chromosomal assembly. The most abundant families among the 69 taxa are Rosaceae (10 taxa), Brassicaceae (7 taxa), Fabaceae (7 taxa), and Poaceae (7 taxa). Due to the rapid release of plant genomes, it is necessary to assemble the current understanding of Korean plant species not only to understand their whole genomes as our own plant resources but also to establish new tools for utilizing plant resources efficiently with various analysis pipelines, including AI-based engines.

• Journal of Animal Science and Technology
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• v.65 no.4
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• pp.890-893
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• 2023

Lactobacillus johnsonii 7409N31 was isolated from the feces of a healthy 11-day-old Hanwoo calf from a farm in Geochang-gun, Gyeongsangnam-do, Korea. The genome of the strain was completely sequenced using the PacBio RSII sequencing system, and it was confirmed that it was composed of one circular chromosome. The size of the entire genome was 2,198,442 bp, and it had 35.01 mol% guanine + cytosine (G + C) content and 2,222 protein-coding sequences, 24 rRNA, 3 ncRNA, and 112 tRNA genes. Strain 7409N31 possessed genes encoding enzymes involved in the hydrolysis of both fibrous and non-fibrous carbohydrates. These data provide a comprehensive theoretical understanding for developing industrial probiotic feed additives that improve nutrient digestibility.

• Journal of Animal Science and Technology
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• v.65 no.5
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• pp.1105-1109
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• 2023

Pedi coccus acidilactici CACC 537 was isolated from canine feces and reported to have probiotic properties. We aimed to characterize the potential probiotic properties of this strain by functional genomic analysis. Complete genome sequencing of P. acidilactici CACC 537 was performed using a PacBio RSII and Illumina platform, and contained one circular chromosome (2.0 Mb) with a 42% G + C content. The sequences were annotation revealed 1,897 protein-coding sequences, 15 rRNAs, and 56 tRNAs. It was determined that P. acidilactici CACC 537 genome carries genes known to be involved in the immune system, defense mechanisms, restriction-modification (R-M), and the CRISPR system. CACC 537 was shown to be beneficial in preventing pathogen infection during the fermentation process, help host immunity, and maintain intestinal health. These results provide for a comprehensive understanding of P. acidilactici and the development of industrial probiotic feed additives that can help improve host immunity and intestinal health.