Meta-Transcriptomic Analysis Reveals Novel RNA Viruses in Hippocampus erectus

Author:

Zhang Fan12,Ren Zhihao3ORCID,Guo Xiaomeng24,Wang Yiting2,Meng Fanzeng2,Shi Weifeng5ORCID,Wang Xinping1,Dong Xuan12

Affiliation:

1. College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

2. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Key Laboratory of Maricultural Organism Disease Control, Ministry of Agriculture and Rural Affairs, Qingdao Key Laboratory of Mariculture Epidemiology and Biosecurity, Qingdao 266071, China

3. Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China

4. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China

5. Shanghai Institute of Virology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China

Abstract

Lined seahorse, Hippocampus erectus, is an important aquatic animal due to its medicinal and ornamental purposes. However, our understanding of the viral spectrum in H. erectus is still limited. Here, we studied the viruses in H. erectus using meta-transcriptomic sequencing. A total of 213,770,166 reads were generated and assembled de novo into 539 virus-associated contigs. Three novel RNA viruses from the Astroviridae, Paramyxoviridae, and Picornaviridae families were finally identified. In addition, we identified a strain of nervous necrosis virus from H. erectus. In particular, the unhealthy group showed a higher viral diversity and abundance than the normal group. These results revealed the diversity and cross-species transmission of viruses in H. erectus and highlighted the threat of viral infections to H. erectus.

Funder

Shinan District Science and Technology Foundation

Central Public-interest Scientific Institution Basal Research Fund, YSFRI, CAFS

Central Public-interest Scientific Institution Basal Research Fund, CAFS

Publisher

MDPI AG

Subject

Virology,Infectious Diseases

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