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Liu X, Song C, Liu Y, Qu K, Bi J, Bi J, Wang Y, Yang Y, Sun J, Guo Z, Li G, Liu J, Yin G. High Genetic Diversity of Porcine Sapovirus From Diarrheic Piglets in Yunnan Province, China. Front Vet Sci 2022; 9:854905. [PMID: 35873674 PMCID: PMC9300989 DOI: 10.3389/fvets.2022.854905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/01/2022] [Indexed: 11/13/2022] Open
Abstract
As one of the most important enteric viruses, sapovirus (SaV) can infect humans and a variety of animals. Until now, 19 SaV genogroups have been identified, among which 4 from human (GI, GII, GIV, and GV) and 8 from swine (GIII, GV–GXI). Porcine sapovirus (PoSaV) GIII has been prevalent in China; however, the status of PoSaV infection in Yunnan province remains unknown. In this study, 202 fecal samples were collected from piglets associated with outbreaks of acute diarrhea in Yunnan between January and May 2020. PoSaV detection revealed that the total PoSaV infection rate in Yunnan was 35.2%, with 21 PoSaV strains determined and phylogenetically analyzed. The phylogenetic tree analyses demonstrated that twenty PoSaV strains belonged to GIII and fell into five genotypes, whereas one PoSaV strain (YNQB) belonged to GV. Sequence alignments revealed deletions in VP2 region in 10 of the 20 GIII strains, as well as deletions and insertions in VP1 region of the GV strain (YNQB). Furthermore, genomic recombination analyses showed that two GIII strains (YNAN and YNJD) were recombinants, closely related to reference sequences MK965898 and LC215880, MK965898 and FJ387164, respectively. In summary, PoSaV-GIII strains were identified in Yunnan in 2020, and for the first time, a PoSaV-GV strain was identified from China, whereas the comprehensive analyses illustrated high genetic diversity of Yunnan PoSaV strains. This study may shed new light on the current PoSaV infections in Yunnan and pave the way toward further control of the PoSaV infections in China.
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Affiliation(s)
- Xiao Liu
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Chunlian Song
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Yinghua Liu
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Kaixing Qu
- Academy of Science and Technology, Chuxiong Normal University, Chuxiong, China
| | - Junyu Bi
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Junlong Bi
- Academy of Science and Technology, Chuxiong Normal University, Chuxiong, China
| | - Yunhua Wang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Ying Yang
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
| | - Junhua Sun
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Zhigang Guo
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Ganwu Li
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Jianping Liu
- College of Life Sciences, Nanjing Normal University, Nanjing, China
- *Correspondence: Jianping Liu
| | - Gefen Yin
- College of Animal Veterinary Medicine, Yunnan Agricultural University, Kunming, China
- Gefen Yin
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Kaszab E, Doszpoly A, Lanave G, Verma A, Bányai K, Malik YS, Marton S. Metagenomics revealing new virus species in farm and pet animals and aquaculture. GENOMICS AND BIOTECHNOLOGICAL ADVANCES IN VETERINARY, POULTRY, AND FISHERIES 2020. [PMCID: PMC7149329 DOI: 10.1016/b978-0-12-816352-8.00002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Viral metagenomics is slowly taking over the traditional and widely used molecular techniques for the investigation of pathogenic viruses responsible for illness and inflicting great economic burden on the farm animal industry. Owing to the continued improvements in sequencing technologies and the dramatic reduction of per base costs of sequencing the use of next generation sequencing have been key factors in this progress. Discoveries linked to viral metagenomics are expected to be beneficial to the field of veterinary medicine starting from the development of better diagnostic assays to the design of new subunit vaccines with minimal investments. With these achievements the research has taken a giant leap even toward the better healthcare of animals and, as a result, the animal sector could be growing at an unprecedented pace.
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