Comments on duck circovirus (DuCV) genotype definition

Wen, Hongling; Wu, Yongshu; Yang, Chao; Zhang, Xiaona; Lian, Chuanjiang; Chen, Hongyan; Han, Le

doi:10.1016/j.gene.2014.01.004

Cited by 12 publications

(9 citation statements)

References 7 publications

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“…According to the phylogenetic analyses of the complete genomes, the DuCV in this study belonged to two genotypes [6]. Compared to previous reports, the 19 DuCVs detected in this study belonged to the Group 1 Germany lineage or Group 2 Taiwan lineage [15]. Based on these results, we confirmed that among these 19 DuCVs, Group 1 was prevalent in Guangdong, Group 2 was prevalent in Guangxi and both groups were prevalent in Yunnan province.…”

Section: Discussionsupporting

confidence: 76%

“…low body weight (BW), lymphocyte depletion, necrosis, and histiocytosis in the bursa of Fabricius (BF) [10]. DuCV can be divided into two genotypes, DuCV-1 and DuCV-2, based on the complete genome and cap gene [17,19]. Worldwide, there are more reports of DuCV-1 in Germany, Hungary, the US, China, South Korea, and Poland than DuCV-2 reports in Taiwan and China [17].…”

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confidence: 99%

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Molecular survey of duck circovirus infection in poultry in southern and southwestern China during 2018 and 2019

Líu

Sun

et al. 2020

BMC Vet Res

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Background: Duck circovirus (DuCV) is a potential immunosuppressive virus that causes feather disorders in young ducks. In this study, DuCV obtained from various species of ducks was investigated by polymerase chain reaction (PCR) in southern and southwestern China (Guangdong, Guangxi and Yunnan provinces) from 2018 to 2019. Results: A total of 848 bursa samples were collected from dead Mulard, Cherry Valley Pekin, Muscovy and Mallard ducks from duck farms. The positivity rate of DuCV in the total sample was approximately 36.91%. We found that the prevalence of DuCV in Yunnan (43.09%) was higher than those in Guangxi (34.38%) and Guangdong (34.4%). However, the positivity rates of DuCV in the four duck species were not significantly different (P > 0.05). Nineteen randomly selected complete viral genomes were sequenced. The complete genomes of the DuCV were 1987 to 1995 nt in length, and were 81.7-99.3% homologous to the other 57 sequences in GenBank. Phylogenetic analyses based on the complete genomes of 76 DuCVs showed that the 19 novel DuCV sequences from Guangdong and Guangxi provinces mainly belonged to the DuCV-1 and DuCV-2 genetic groups, respectively. However, the two genotype groups coexisted in Yunnan Province. In addition, recombination analysis showed putative recombination sites in 3 strains in Yunnan that originated from strains Guangdong and Guangxi. Interestingly, the epidemiological investigation showed that Mulard ducks, Cherry Valley Pekin ducks and Muscovy ducks more than 4 weeks old were more susceptible to infection with the novel DuCV than ducks less than 4 weeks old. Conclusions: These data provide insight into the molecular epidemiology and genetic diversity of DuCVs circulating in southern and southwestern China for the first time.

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Section: Discussionsupporting

confidence: 76%

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confidence: 99%

Molecular survey of duck circovirus infection in poultry in southern and southwestern China during 2018 and 2019

Líu

Sun

et al. 2020

BMC Vet Res

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“…Its genome contains 3 major ORF, ORF1 and ORF2 encoding the viral replication-associated protein and immunogenic capsid protein, whereas ORF3 encoding the ORF3 protein with apoptotic activity ( Hattermann et al., 2003 ; Xiang et al., 2012 ). Based on the complete genome and Cap gene analysis, the virus can be divided into 2 genotypes (DuCV-1 and DuCV-2) ( Jiang et al., 2008 ; Zhang et al., 2012 ; Wen et al., 2014 ). DuCV can spread horizontally and vertically ( Liu et al., 2010 ; Li et al., 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Coinfection of novel goose parvovirus–associated virus and duck circovirus in feather sacs of Cherry Valley ducks with feather shedding syndrome

et al. 2020

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Since 2017, an infectious disease, named feather shedding syndrome ( FSS ), has consistently broken out in Cherry Valley ducks in East China. The sick ducks showed the new clinical symptoms of feather shedding and being plucked off with difficulty after slaughter. The high incidence rate of 20 to 70% predominantly happened in ducks of 4 to 5 wk of age, and nearly 40% mortality rate was observed in infected ducks. To explore the possible role of novel goose parvovirus–associated virus ( NGPV ) and duck circovirus ( DuCV ) in this disease, a total of 540 feather sac samples were collected from sick ducks with FSS. The infection rates of NGPV and DuCV in samples were 82.78 and 78.89%, respectively, and the coinfection rate of the 2 viruses was 70.00%. Notably, ducks of 4 to 5 wk of age usually presented obvious and severe FSS in the flocks with high codetection rate of NGPV and DuCV. Furthermore, 9 NGPV strains were isolated from feather sacs and 5 synchronous amino acid mutations were demonstrated in VP3 protein. These results indicated that coinfection of NGPV and DuCV might play an important role in duck FSS disease.

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“…DuCV has been detected in Cherry Valley ducks, Pekin ducks, Muscovy ducks, mule ducks and wild ducks (Banda et al., ; Chen et al., ; Matczuk, Krawiec, & Wieliczko, ; Wan et al., ; Zhang et al., ). The virus can be divided into two genotypes (DuCV‐1 and DuCV‐2) based on the complete genome and cap gene (Wen et al., ; Zhang et al., ). The symptom of DuCV infection in ducks was characterized as growth retardation, feathering disorders and poor body condition (Cha et al., ; Hattermann et al., ; Soike, Albrecht, Hattermann, Schmitt, & Mankertz, ), which were similar to the clinical symptom of BADS.…”

Section: Introductionmentioning

confidence: 99%

Duck “beak atrophy and dwarfism syndrome” disease complex: Interplay of novel goose parvovirus-related virus and duck circovirus?

J.)

Zhang

et al. 2018

Transbound Emerg Dis

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As a newly emerged infectious disease, duck "beak atrophy and dwarfism syndrome (BADS)" disease has caused huge economic losses to waterfowl industry in China since 2015. Novel goose parvovirus-related virus (NGPV) is believed the main pathogen of BADS disease; however, BADS is rarely reproduced by infecting ducks with NGPV alone. As avian circovirus infection causes clinical symptoms similar to BADS, duck circovirus (DuCV) is suspected the minor pathogen of BADS disease. In this study, an investigation was carried out to determine the coinfection of NGPV and DuCV in duck embryos and in ducks with BADS disease. According to our study, the coinfection of emerging NGPV and DuCV was prevalent in East China (Shandong, Jiangsu and Anhui province) and could be vertical transmitted, indicating their cooperative roles in duck BADS disease.

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Comments on duck circovirus (DuCV) genotype definition

Cited by 12 publications

References 7 publications

Molecular survey of duck circovirus infection in poultry in southern and southwestern China during 2018 and 2019

Molecular survey of duck circovirus infection in poultry in southern and southwestern China during 2018 and 2019

Coinfection of novel goose parvovirus–associated virus and duck circovirus in feather sacs of Cherry Valley ducks with feather shedding syndrome

Duck “beak atrophy and dwarfism syndrome” disease complex: Interplay of novel goose parvovirus-related virus and duck circovirus?

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