Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China

Abstract Background Pigeon circovirus (PiCV) infections in pigeons (Columba livia) have been reported worldwide. Currently, pigeon racing is becoming increasingly popular and considered to be a national sport in China, and even, the greatest competitions of racing pigeons are taking place in China....

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Main Authors: Haoran Wang, Hui Gao, Zhiwen Jiang, Leibo Shi, Pengwei Zhao, Yanming Zhang, Chengbao Wang
Format: Article
Language:English
Published: BMC 2022-04-01
Series:BMC Genomics
Subjects:
Online Access:https://doi.org/10.1186/s12864-022-08425-8
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author Haoran Wang
Hui Gao
Zhiwen Jiang
Leibo Shi
Pengwei Zhao
Yanming Zhang
Chengbao Wang
author_facet Haoran Wang
Hui Gao
Zhiwen Jiang
Leibo Shi
Pengwei Zhao
Yanming Zhang
Chengbao Wang
author_sort Haoran Wang
collection DOAJ
description Abstract Background Pigeon circovirus (PiCV) infections in pigeons (Columba livia) have been reported worldwide. Currently, pigeon racing is becoming increasingly popular and considered to be a national sport in China, and even, the greatest competitions of racing pigeons are taking place in China. However, there are still no epidemiologic data regarding PiCV infections among racing pigeons in China. The purpose of our study was to provide information of prevalence, genetic variation and evolution of PiCV from racing pigeons in China. Results To trace the prevalence, genetic variation and evolution of PiCV in sick and healthy racing pigeons, 622 samples were collected from 11 provinces or municipalities in China from 2016 to 2019. The results showed that the positive rate of PiCV was 19.3% (120/622) at the sample level and 59.0% (23/39) at the club level, thus suggesting that the virus was prevalent in Chinese racing pigeons. A sequence analysis revealed that the cap genes of the PiCV strains identified in our study displayed a high genetic diversity and shared nucleotide homologies of 71.9%–100% and amino acid homologies of 71.7%–100%. 28 and 36 unique amino acid substitutions were observed in the Cap and Rep proteins derived from our PiCV strains, respectively. A cladogram representation of PiCV strains phylogeny based on 90 cap gene sequences showed that the strains in this study could be further divided into seven clades (A, B, C, E, G, H, and I) and some of them were closely related to worldwide strains from different types of pigeons. A large number of recombination events (31 events) were also detected in the PiCV genomes from Chinese racing pigeons. Conclusions These findings indicate that PiCV strains circulating in China exhibit a high genetic diversity and also contribute to information of prevalence, genetic variation and evolution of PiCV from racing pigeons in China.
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spelling doaj.art-2e3c2059664444e5b8bedafd4aa802ce2022-12-22T01:51:39ZengBMCBMC Genomics1471-21642022-04-0123111210.1186/s12864-022-08425-8Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern ChinaHaoran Wang0Hui Gao1Zhiwen Jiang2Leibo Shi3Pengwei Zhao4Yanming Zhang5Chengbao Wang6College of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityCollege of Veterinary Medicine, Northwest A&F UniversityAbstract Background Pigeon circovirus (PiCV) infections in pigeons (Columba livia) have been reported worldwide. Currently, pigeon racing is becoming increasingly popular and considered to be a national sport in China, and even, the greatest competitions of racing pigeons are taking place in China. However, there are still no epidemiologic data regarding PiCV infections among racing pigeons in China. The purpose of our study was to provide information of prevalence, genetic variation and evolution of PiCV from racing pigeons in China. Results To trace the prevalence, genetic variation and evolution of PiCV in sick and healthy racing pigeons, 622 samples were collected from 11 provinces or municipalities in China from 2016 to 2019. The results showed that the positive rate of PiCV was 19.3% (120/622) at the sample level and 59.0% (23/39) at the club level, thus suggesting that the virus was prevalent in Chinese racing pigeons. A sequence analysis revealed that the cap genes of the PiCV strains identified in our study displayed a high genetic diversity and shared nucleotide homologies of 71.9%–100% and amino acid homologies of 71.7%–100%. 28 and 36 unique amino acid substitutions were observed in the Cap and Rep proteins derived from our PiCV strains, respectively. A cladogram representation of PiCV strains phylogeny based on 90 cap gene sequences showed that the strains in this study could be further divided into seven clades (A, B, C, E, G, H, and I) and some of them were closely related to worldwide strains from different types of pigeons. A large number of recombination events (31 events) were also detected in the PiCV genomes from Chinese racing pigeons. Conclusions These findings indicate that PiCV strains circulating in China exhibit a high genetic diversity and also contribute to information of prevalence, genetic variation and evolution of PiCV from racing pigeons in China.https://doi.org/10.1186/s12864-022-08425-8Genetic diversityMolecular epidemiologyPhylogenetic analysisPigeon circovirusSequence analysis
spellingShingle Haoran Wang
Hui Gao
Zhiwen Jiang
Leibo Shi
Pengwei Zhao
Yanming Zhang
Chengbao Wang
Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
BMC Genomics
Genetic diversity
Molecular epidemiology
Phylogenetic analysis
Pigeon circovirus
Sequence analysis
title Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
title_full Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
title_fullStr Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
title_full_unstemmed Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
title_short Molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in Northern China
title_sort molecular detection and phylogenetic analysis of pigeon circovirus from racing pigeons in northern china
topic Genetic diversity
Molecular epidemiology
Phylogenetic analysis
Pigeon circovirus
Sequence analysis
url https://doi.org/10.1186/s12864-022-08425-8
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