Dataset Information

Complete Genome Sequence of Aeromonas Phage ZPAH7 with Halo Zones, Isolated in China.

ABSTRACT: Phage ZPAH7, isolated from a sediment sample from a fish farm, is a novel lytic phage belonging to the Podoviridae family. It produces large plaques (3.5 ± 0.2 mm) with halo zones (10.5 ± 0.5 mm), suggesting it has the ability to depolymerize exopolysaccharides and biofilms. It has a 30,791-bp genome encoding 29 putative coding sequences.

SUBMITTER: Islam MS

PROVIDER: S-EPMC6406118 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Publications

Complete Genome Sequence of <i>Aeromonas</i> Phage ZPAH7 with Halo Zones, Isolated in China.

Islam Mohammad Sharifull MS Raz Assaf A Liu Yang Y Elbassiony Khalid Ragaei Abdraboh KRA Dong Xingxing X Zhou Peng P Zhou Yang Y Li Jinquan J

Microbiology resource announcements 20190307 10

Phage ZPAH7, isolated from a sediment sample from a fish farm, is a novel lytic phage belonging to the <i>Podoviridae</i> family. It produces large plaques (3.5 ± 0.2 mm) with halo zones (10.5 ± 0.5 mm), suggesting it has the ability to depolymerize exopolysaccharides and biofilms. It has a 30,791-bp genome encoding 29 putative coding sequences. ...[more]

PMID: 30863828

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Project description:Lymphocystis diseases in fish throughout the world have been extensively described. Here we report the complete genome sequence of lymphocystis disease virus isolated in China (LCDV-C), an LCDV isolated from cultured flounder (Paralichthys olivaceus) with lymphocystis disease in China. The LCDV-C genome is 186,250 bp, with a base composition of 27.25% G+C. Computer-assisted analysis revealed 240 potential open reading frames (ORFs) and 176 nonoverlapping putative viral genes, which encode polypeptides ranging from 40 to 1,193 amino acids. The percent coding density is 67%, and the average length of each ORF is 702 bp. A search of the GenBank database using the 176 individual putative genes revealed 103 homologues to the corresponding ORFs of LCDV-1 and 73 potential genes that were not found in LCDV-1 and other iridoviruses. Among the 73 genes, there are 8 genes that contain conserved domains of cellular genes and 65 novel genes that do not show any significant homology with the sequences in public databases. Although a certain extent of similarity between putative gene products of LCDV-C and corresponding proteins of LCDV-1 was revealed, no colinearity was detected when their ORF arrangements and coding strategies were compared to each other, suggesting that a high degree of genetic rearrangements between them has occurred. And a large number of tandem and overlapping repeated sequences were observed in the LCDV-C genome. The deduced amino acid sequence of the major capsid protein (MCP) presents the highest identity to those of LCDV-1 and other iridoviruses among the LCDV-C gene products. Furthermore, a phylogenetic tree was constructed based on the multiple alignments of nine MCP amino acid sequences. Interestingly, LCDV-C and LCDV-1 were clustered together, but their amino acid identity is much less than that in other clusters. The unexpected levels of divergence between their genomes in size, gene organization, and gene product identity suggest that LCDV-C and LCDV-1 shouldn't belong to a same species and that LCDV-C should be considered a species different from LCDV-1.

Dataset Information

Complete Genome Sequence of Aeromonas Phage ZPAH7 with Halo Zones, Isolated in China.

Publications

Complete Genome Sequence of <i>Aeromonas</i> Phage ZPAH7 with Halo Zones, Isolated in China.

Similar Datasets

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