The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23

As the virus continues to spread, the frequency of contact between different parvovirus strains has increased. In recent years, recombinant Muscovy duck parvovirus (rMDPV) has been widely prevalent in China. In 2023, a strain of rMDPV, designated GD-23, was isolated from Guangdong. After isolation a...

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Main Authors: Mingtian Mao, Jiake Li, Caiqi Wang, Mian Wu, ChengGuang Lu, Yudong Zhu, HuiHui Li, Bing Li, Meixi Lu, Yi Tang
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Virulence
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Online Access:https://www.tandfonline.com/doi/10.1080/21505594.2025.2530666
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author Mingtian Mao
Jiake Li
Caiqi Wang
Mian Wu
ChengGuang Lu
Yudong Zhu
HuiHui Li
Bing Li
Meixi Lu
Yi Tang
author_facet Mingtian Mao
Jiake Li
Caiqi Wang
Mian Wu
ChengGuang Lu
Yudong Zhu
HuiHui Li
Bing Li
Meixi Lu
Yi Tang
author_sort Mingtian Mao
collection DOAJ
description As the virus continues to spread, the frequency of contact between different parvovirus strains has increased. In recent years, recombinant Muscovy duck parvovirus (rMDPV) has been widely prevalent in China. In 2023, a strain of rMDPV, designated GD-23, was isolated from Guangdong. After isolation and culture, the entire genome of GD-23 was sequenced. A phylogenetic tree was constructed based on the genomic characteristics of GD-23, and recombination events were analysed. The analysis revealed that the virus underwent two recombination events between different parent strains in the P9 promoter region and part of the VP3 region, with highly consistent start and end breakpoints among rMDPV strains. Using AlphaFold3, the VP3 protein conformation of waterfowl parvoviruses (WPVs) was simulated, and potential receptor interaction regions were predicted based on the structural similarities of capsid proteins among viruses of the same genus. Notably, the rMDPV-GD-23 strain exhibited two identical amino acid mutations at distinct sites, which reduced the overall phosphorylation of the viral capsid. Artificial infection experiments in waterfowl demonstrated that the rMDPV-GD-23 strain was pathogenic to multiple waterfowl hosts. This study provides the first evidence that rMDPV possesses cross-host infection capability, a finding that will aid in identifying key amino acid sites on the capsid surface of WPVs.
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spelling doaj-art-21fc89f1e8694447bf7adb52daa707ba2025-08-20T03:27:51ZengTaylor & Francis GroupVirulence2150-55942150-56082025-12-0116110.1080/21505594.2025.2530666The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23Mingtian Mao0Jiake Li1Caiqi Wang2Mian Wu3ChengGuang Lu4Yudong Zhu5HuiHui Li6Bing Li7Meixi Lu8Yi Tang9College of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, ChinaInstitute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, ChinaCollege of Animal Science and Technology, Shandong Agricultural University, Tai’an, Shandong, ChinaAs the virus continues to spread, the frequency of contact between different parvovirus strains has increased. In recent years, recombinant Muscovy duck parvovirus (rMDPV) has been widely prevalent in China. In 2023, a strain of rMDPV, designated GD-23, was isolated from Guangdong. After isolation and culture, the entire genome of GD-23 was sequenced. A phylogenetic tree was constructed based on the genomic characteristics of GD-23, and recombination events were analysed. The analysis revealed that the virus underwent two recombination events between different parent strains in the P9 promoter region and part of the VP3 region, with highly consistent start and end breakpoints among rMDPV strains. Using AlphaFold3, the VP3 protein conformation of waterfowl parvoviruses (WPVs) was simulated, and potential receptor interaction regions were predicted based on the structural similarities of capsid proteins among viruses of the same genus. Notably, the rMDPV-GD-23 strain exhibited two identical amino acid mutations at distinct sites, which reduced the overall phosphorylation of the viral capsid. Artificial infection experiments in waterfowl demonstrated that the rMDPV-GD-23 strain was pathogenic to multiple waterfowl hosts. This study provides the first evidence that rMDPV possesses cross-host infection capability, a finding that will aid in identifying key amino acid sites on the capsid surface of WPVs.https://www.tandfonline.com/doi/10.1080/21505594.2025.2530666Recombinant Muscovy duck parvovirus (rMDPV)isolationpathogenicity analysisrecombinationAlphaFold 3amino acid mutations
spellingShingle Mingtian Mao
Jiake Li
Caiqi Wang
Mian Wu
ChengGuang Lu
Yudong Zhu
HuiHui Li
Bing Li
Meixi Lu
Yi Tang
The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
Virulence
Recombinant Muscovy duck parvovirus (rMDPV)
isolation
pathogenicity analysis
recombination
AlphaFold 3
amino acid mutations
title The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
title_full The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
title_fullStr The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
title_full_unstemmed The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
title_short The study on the molecular characteristics and variation patterns of the recombinant Muscovy duck parvovirus strain GD-23
title_sort study on the molecular characteristics and variation patterns of the recombinant muscovy duck parvovirus strain gd 23
topic Recombinant Muscovy duck parvovirus (rMDPV)
isolation
pathogenicity analysis
recombination
AlphaFold 3
amino acid mutations
url https://www.tandfonline.com/doi/10.1080/21505594.2025.2530666
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