Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia

Porcine circovirus type 2 (PCV2) is the causative agent of porcine circovirus-associated diseases (PCVAD) that bring about significant economic losses in the pig industry all over the world. The aim of this study was to investigate the genetic diversity of PCV2 in Russia and characterize the availab...

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Main Authors: Sergei Raev, Anton Yuzhakov, Taras Aliper
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/10/12/1631
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author Sergei Raev
Anton Yuzhakov
Taras Aliper
author_facet Sergei Raev
Anton Yuzhakov
Taras Aliper
author_sort Sergei Raev
collection DOAJ
description Porcine circovirus type 2 (PCV2) is the causative agent of porcine circovirus-associated diseases (PCVAD) that bring about significant economic losses in the pig industry all over the world. The aim of this study was to investigate the genetic diversity of PCV2 in Russia and characterize the available complete genome sequences. PCV2 DNA was detected at all investigated farms located in different regions of Russia. Whole-genome analysis demonstrated that the majority of PCV2 strains belonged to genotype PCV2d (12 out of 14), while PCV2a and PCV2b were only detected at 2 farms (one at each). Further analysis revealed that all antibody recognition sites in Russian PCV2 strains were different from the corresponding epitopes in a PCV2a vaccine strain, suggesting that PCV2a-based vaccines may only provide limited protection against these strains. PCV2d strains could be grouped into 3 distinct lines which shared 98.7–100% identity within open reading frame 2 (ORF2). It is the first study reporting the genetic diversity of PCV2 strains in Russia. Our data indicated that, similarly to China, Europe, and USA, PCV2a and PCV2b have largely been replaced by PCV2d.
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spelling doaj.art-d79ac2d9d4654faeb549ddd91e781dab2023-11-23T10:01:46ZengMDPI AGPathogens2076-08172021-12-011012163110.3390/pathogens10121631Whole-Genome Analysis of Porcine Circovirus Type 2 in RussiaSergei Raev0Anton Yuzhakov1Taras Aliper2Federal State Budget Scientific Institution “Federal Scientific Center VIEV”, 109428 Moscow, RussiaFederal State Budget Scientific Institution “Federal Scientific Center VIEV”, 109428 Moscow, RussiaFederal State Budget Scientific Institution “Federal Scientific Center VIEV”, 109428 Moscow, RussiaPorcine circovirus type 2 (PCV2) is the causative agent of porcine circovirus-associated diseases (PCVAD) that bring about significant economic losses in the pig industry all over the world. The aim of this study was to investigate the genetic diversity of PCV2 in Russia and characterize the available complete genome sequences. PCV2 DNA was detected at all investigated farms located in different regions of Russia. Whole-genome analysis demonstrated that the majority of PCV2 strains belonged to genotype PCV2d (12 out of 14), while PCV2a and PCV2b were only detected at 2 farms (one at each). Further analysis revealed that all antibody recognition sites in Russian PCV2 strains were different from the corresponding epitopes in a PCV2a vaccine strain, suggesting that PCV2a-based vaccines may only provide limited protection against these strains. PCV2d strains could be grouped into 3 distinct lines which shared 98.7–100% identity within open reading frame 2 (ORF2). It is the first study reporting the genetic diversity of PCV2 strains in Russia. Our data indicated that, similarly to China, Europe, and USA, PCV2a and PCV2b have largely been replaced by PCV2d.https://www.mdpi.com/2076-0817/10/12/1631porcine circovirus type 2genetic diversitygenotypesphylogenetic analysisPCV-2d
spellingShingle Sergei Raev
Anton Yuzhakov
Taras Aliper
Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
Pathogens
porcine circovirus type 2
genetic diversity
genotypes
phylogenetic analysis
PCV-2d
title Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
title_full Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
title_fullStr Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
title_full_unstemmed Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
title_short Whole-Genome Analysis of Porcine Circovirus Type 2 in Russia
title_sort whole genome analysis of porcine circovirus type 2 in russia
topic porcine circovirus type 2
genetic diversity
genotypes
phylogenetic analysis
PCV-2d
url https://www.mdpi.com/2076-0817/10/12/1631
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