alexa Sequence Comparison and Phylogenetic Analysis of Several Emerging Porcine Bocaviruses and a Proposal Regarding Nomenclature
ISSN: 2161-0517

Virology & Mycology
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Research Article

Sequence Comparison and Phylogenetic Analysis of Several Emerging Porcine Bocaviruses and a Proposal Regarding Nomenclature

Shao-Lun Zhai 1,2, Xiao-Peng Li 2, Qin-Ling Chen 1, Sheng-Nan Chen3, Wen-Kang Wei1* and Man-Lin Luo2*

1Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China

2College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China

3Guangdong Dahuanong Animal Health Products Co., Ltd., Xinxing 527400, China

*Corresponding Author:
Wen-Kang Wei
Animal Disease Diagnostic Center
Institute of Animal Health
Guangdong Academy of Agricultural Sciences, No. 21
Baishigang Street, Tianhe District
Guangzhou, 510640, China,
Tel: +86-20-8529-0911
Fax: +86-20-8529-2955
E-mail: [email protected]

Received date: November 29, 2015; Accepted date: February 20, 2015; Published date: February 25, 2015

Citation:Zhai SL, Li XP, Chen QL, Chen SN, Wei WK, et al. (2015) Sequence Comparison and Phylogenetic Analysis of Several Emerging Porcine Bocaviruses and a Proposal Regarding Nomenclature. Virol Mycol 4:142. doi:10.4172/2161-0517.1000142

Copyright: © 2015 Zhai SL, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The first Bocavirus (bovine parvovirus 1, BPV1) was discovered in calves with diarrhea in 1961. Since then, a
series of bocaviruses have emerged in many animals including dogs, humans, swine, gorillas, California sea lions,
and cats. These viruses are associated with digestive tract and respiratory tract diseases. Several emerging porcine
bocaviruses (PBoVs) have been reported on pig farms in the past four years. However, the nomenclature used to
describe these viruses has been confused and irregular. The goal of this study was to compare the sequences of
these emerging PBoVs, perform phylogenetic analysis, and present a proposal regarding their nomenclature.
Genome sequences of some PBoVs and other bocaviruses were downloaded from the GenBank database. Sequence
similarity, sequence mutation, deletion, or insertion, and sequence recombination among reference bocaviruses were
obtained using DNAStar software, and its genetic evolution was determined using MEGA 5.1 software. According to
the differences in their sequences and genome structure, the nomenclature of PBoVs was proposed and they were
divided into four different species (from PBoV1 to PBoV4) and many different genotypes. Among them, both PBoV1
and PBoV2 had two genotypes, PBoV1-a and PBoV1-b and PBoV2-a and PBoV2-a and PBoV2-b, respectively.
PBoV3 included three genotypes, PBoV3-a, PBoV3-b and PBoV3-c, respectively. In addition, for PBoV4, there were at
least eight genotypes (PBoV4-a to PBoV4-h) in intraspecies. In conclusion, PBoVs were highly genetically diversified.
The proposed nomenclature of PBoVs was used in the present studies, it could help us to better understand and
standardize the nomenclature of PBoVs.


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