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Complete genome sequence of a novel picobirnavirus, otarine picobirnavirus, discovered in California sea lions.

ABSTRACT: We discovered a novel otarine picobirnavirus in fecal samples of California sea lions. Its genome contains a large segment with two open reading frames (ORFs), ORF1 encoding a putative protein of 163 amino acids with unknown function and ORF2 encoding capsid protein, and a small segment with one ORF encoding RNA-dependent RNA polymerase.

SUBMITTER: Woo PC

PROVIDER: S-EPMC3372223 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Complete genome sequence of a novel picobirnavirus, otarine picobirnavirus, discovered in California sea lions.

Woo Patrick C Y PC Lau Susanna K P SK Bai Ru R Teng Jade L L JL Lee Paul P Martelli Paolo P Hui Suk-Wai SW Yuen Kwok-Yung KY

Journal of virology 20120601 11

We discovered a novel otarine picobirnavirus in fecal samples of California sea lions. Its genome contains a large segment with two open reading frames (ORFs), ORF1 encoding a putative protein of 163 amino acids with unknown function and ORF2 encoding capsid protein, and a small segment with one ORF encoding RNA-dependent RNA polymerase. ...[more]

PMID: 22570247

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The fecal viral flora of California sea lions.

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Identification of two novel coccidian species shed by California sea lions (Zalophus californianus).

Project description:Routine fecal examination revealed novel coccidian oocysts in asymptomatic California sea lions (Zalophus californianus) in a rehabilitation facility. Coccidian oocysts were observed in fecal samples collected from 15 of 410 California sea lions admitted to The Marine Mammal Center between April 2007 and October 2009. Phylogenetic analysis using the full ITS-1 region, partial small subunit 18S rDNA sequence, and the Apicomplexa rpoB region identified 2 distinct sequence clades, referred to as Coccidia A and Coccidia B, and placed them in the Sarcocystidae, grouped with the tissue-cyst-forming coccidia. Both sequence clades resolved as individual taxa at ITS-1 and rpoB and were most closely related to Neospora caninum. Coccidia A was identified in 11 and Coccidia B in 4 of 12 sea lion oocyst samples successfully sequenced (3 of those sea lions were co-infected with both parasites). Shedding of Coccidia A oocysts was not associated with age class, sex, or stranding location, but yearlings represented the majority of shedders (8/15). This is the first study to use molecular phylogenetics to identify and describe coccidian parasites shed by a marine mammal.

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Climatic anomaly affects the immune competence of California sea lions.

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