ArticleViruses2022
Genetic Variation Analysis of Porcine Circovirus Type 4 in South China in 2019 to 2021.
Article in Viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- The Prevalence and Genetic Diversity of Porcine Circoviruses (PCVs) in Eastern China During 2010-2016 and 2023-2024.Veterinary sciences · 2026Article
- First detection of PCV4 in swine in the United States: codetection with PCV2 and PCV3 and direct detection within tissues.Scientific reports · 2024Article
- Molecular detection and genetic characterization of porcine circovirus 4 (PCV4) in Thailand during 2019-2020.Scientific reports · 2023Article
- Integration: Gospel for immune bioinformatician on epitope-based therapy.Frontiers in immunology · 2023Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Porcine circovirus type 4 (PCV4) is a novel virus associated with porcine dermatitis and nephropathy syndrome (PDNS)-like signs identified firstly in China in 2019. However, the details of the molecular epidemiology of PCV4 are unclear at this time. A total of forty-two related sequences were selected from the GenBank database to explore the spread of PCV4 and its rule in genetic evolution. Of the selected strains, 41 were from south China in 2019 to 2021 and the other was a foreign representative strain. Phylogenetic tree construction, nucleotide and amino acid (aa) sequence alignment, gene recombination and antigen structure prediction were performed on the collected sequences using bioinformatics softwares. The 42 PCV4 strains were divided into two subgenotypes: PCV4a (35/42) and PCV4b (7/42), according to the constructed genetic evolution tree. PCV4a is the main epidemic strain, and it can be further divided into two different gene clusters: PCV4a-1 (22/35) and PCV4a-2 (13/35). The pairwise comparison analysis showed that the complete genome sequence similarity of the 42 PCV4 strains ranged between 97.9% and 100%, and the aa sequences of the Cap proteins of 42 PCV4 strains had three major heterogenic or hypervariable regions-27-28, 96 and 212-all located near the antigenic epitope of the Cap protein. The results of this study can provide some basis for further studying the spread and epidemic growth of PCV4, and the prevention and control of PCV4 infection in China.
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