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Identification and genome characterization of a novel picornavirus from ducks in China

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Abstract

A novel picornavirus, referred to as Duck/FC22/China/2017, was isolated from breeding ducks in China and genetically characterized by conducting metagenomics studies. The complete genome consists of a single-stranded, positive-sense RNA made up of 7448 nucleotides (nt) and follows the common picornavirus genome layout: 5′ UTR-VP0-VP3-VP1-2A-2B-2C-3A-3B-3C-3D-3′ UTR. A typical type-IV internal ribosomal entry site and a conserved ‘barbell-like’ structure were identified in the 5′ UTR and 3′ UTR, respectively. The unique 6423-nt open reading frame was predicted to encode a 2141-amino-acid (aa) polyprotein precursor. A pairwise aa sequence identity comparison and phylogenetic analysis revealed that Duck/FC22/China/2017 is closely related to duck aalivirus, duck hepatitis A virus, turkey avisivirus, and red-crowned crane picornavirus.

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Acknowledgements

This study was supported by National Key R&D Projects (2016YFD0500800), Agricultural Scientific and Technological Innovation Project of SAAS (CXGC2016B14), Shandong Provincial Key Laboratory of Special Construction Project (SDKL201810), and Construction of Subjects and Teams of Institue of Poultry Science (CXGC2018E11).

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Author notes

  1. Yufeng Li and Kaicheng Wang contributed equally to this work.

Authors and Affiliations

  1. Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Jinan, 250023, Shandong, China

    Yufeng Li, Kexiang Yu, Feng Hu, Xue Tian, Bing Huang, Jiaqiang Wu & Minxun Song

  2. China Animal Health and Epidemiology Center, Qingdao, 266032, Shandong, China

    Kaicheng Wang & Hualei Liu

  3. College of Life Sciences, Shandong Normal University, Jinan, 250014, Shandong, China

    Jiaqiang Wu

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  1. Yufeng Li
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  2. Kaicheng Wang
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  3. Kexiang Yu
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  4. Feng Hu
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  7. Hualei Liu
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  9. Minxun Song
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Corresponding authors

Correspondence to Yufeng Li or Minxun Song.

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The authors declare that they have no conflict of interest.

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The samples used in this study were collected from dead ducks on poultry farms. No ducks or any other animals were sacrificed in this study.

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Li, Y., Wang, K., Yu, K. et al. Identification and genome characterization of a novel picornavirus from ducks in China. Arch Virol 165, 2087–2089 (2020). https://doi.org/10.1007/s00705-020-04691-7

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  • DOI: https://doi.org/10.1007/s00705-020-04691-7

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