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Draft Genome Sequence of a Novel "Candidatus Liberibacter" Species Detected in a Zanthoxylum Species from Bhutan.

ABSTRACT: The draft genome sequence of a novel "Candidatus Liberibacter" species detected in an unidentified species of Zanthoxylum (Rutaceae) collected in Bhutan is reported. The total length is 1,408,989?bp with 1,169 coding sequences in 96 contigs, a GC content of 37.3%, and 76 to 77% average nucleotide identity with several other "Ca Liberibacter" species.

SUBMITTER: Chambers GA

PROVIDER: S-EPMC7530927 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Draft Genome Sequence of a Novel "Candidatus Liberibacter" Species Detected in a Zanthoxylum Species from Bhutan.

Chambers Grant A GA Donovan Nerida J NJ Bogema Daniel R DR Om Namgay N Beattie George A C GAC Morrow Jennifer L JL Holford Paul P

Microbiology resource announcements 20201001 40

The draft genome sequence of a novel "Candidatus Liberibacter" species detected in an unidentified species of Zanthoxylum (Rutaceae) collected in Bhutan is reported. The total length is 1,408,989 bp with 1,169 coding sequences in 96 contigs, a GC content of 37.3%, and 76 to 77% average nucleotide identity with several other "Ca Liberibacter" species. ...[more]

PMID: 33004455

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Project description:BackgroundCandidatus Ornithobacterium hominis (O. hominis), which was identified in nasopharyngeal swabs from Egypt, has been associated with respiratory disorders in humans. O. hominis, a recently identified member of the Flavobacteriaceae family, belongs to the largest family within the Bacteroidetes phylum. This family includes hundreds of species and 90 genera, including major human pathogens such as Capnocytophaga canimorsus and Elizabethkingia meningoseptica. Herein, we presented two draft genome assemblies of O. hominis that were extracted from metagenomic data using the Illumina sequencing method. The alignment of reads against the O. hominis genome was accomplished using BLASTN, and the reads with significant hits were extracted using Seqtk and assembled using SPAdes. The primary goal of this study was to obtain a more profound understanding of the genomic landscape of O. hominis, with an emphasis on identifying the associated virulence, antimicrobial genes, and distinct defense mechanisms to shed light on the potential role of O. hominis in human respiratory infections.ResultsThe genome size was estimated to be 1.84 Mb, including 1,931,660 base pairs (bp), with 1,837 predicted coding regions and a G+C content of 35.62%. Genes encoding gliding motility, antibiotic resistance (20 genes), and the toxA gene were all included in the genome assembly. Gliding motility lipoproteins (GldD, GldJ, GldN, and GldH) and the gliding motility-associated ABC transporter substrate-binding protein, which acts as a crucial virulence mechanism in Flavobacterium species, were identified. The genome contained unique genes encoding proteins, such as the ParE1 toxin that defend against the actions of quinolone and other antibiotics. The cobalt-zinc-cadmium resistance gene encoding the protein CzcB, which is necessary for metal resistance, urease regulation, and colonization, was also detected. Several multidrug resistance genes encoding proteins were identified, such as MexB, MdtK, YheI, and VanC.ConclusionOur study focused on identifying virulence factors, and antimicrobial resistance genes present in the core genome of O. hominis. These findings provide valuable insights into the potential pathogenicity and antibiotic susceptibility of O. hominis.

Dataset Information

Draft Genome Sequence of a Novel "Candidatus Liberibacter" Species Detected in a Zanthoxylum Species from Bhutan.

Publications

Draft Genome Sequence of a Novel "<i>Candidatus</i> Liberibacter" Species Detected in a <i>Zanthoxylum</i> Species from Bhutan.

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