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A new recombined porcine reproductive and respiratory syndrome virus virulent strain in China
Jian-guo Dong, Lin-yang Yu, Pei-pei Wang, Le-yi Zhang, Yan-ling Liu, Peng-shuai Liang, Chang-xu Song 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 12 89-98 (10 pages)
Porcine reproductive and respiratory syndrome (PRRS) is one of the most important swine diseases worldwide. In the present study, a new virulent strain of PRRS virus (PRRSV), GDsg, was isolated in Guangdong province, China, and caused high fever, high morbidity, and high mortality in sows and piglets. The genome of this new strain was 15,413 nucleotides (nt) long, and comparative analysis revealed that GDsg shared 82.4% to 94% identity with type 2 PRRSV strains, but only 61.5% identity with type... -
Analysis of structure-function relationship in porcine rotavirus A enterotoxin gene
Sharad Saurabh, Shubhankar Sircar, Jobin J. Kattoor, Souvik Ghosh, Nobumichi Kobayashi, Krisztian Banyai, Obli R. VinodhKumar, U 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 6 35-43 (9 pages)
animals. In RVs, non-structural protein 4 (NSP4) is the major virulence factor with pleiotropic properties. In this study, we analyzed the nsp4 gene from porcine RVs isolated from diarrheic and non-diarrheic cases at different levels of protein folding to explore correlations to diarrhea-inducing capabilities and evolution of nsp4 in the porcine population. Full-length nsp4 genes were amplified, cloned, sequenced, and then analyzed for antigenic epitopes, RotaC classification, homology, genetic... -
Genetic diversity and phylogenetic analysis of porcine reproductive and respiratory syndrome virus in southern China from 2007 to 2014
Qiwen Wu, Zhili Li, Guanqun Zhang, Jianqiang Niu, Xiduo Zeng, Baoli Sun, Jingyun Ma 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 3호 8 317-326 (10 pages)
a high degree of genetic variation. In this study, we characterized the genetic variation and evolutionary relationships among circulating PRRSV strains in southern China. We analyzed 29 NSP2 strains and 150 ORF5 strains from clinical samples collected in southern China during 2007?2014. The alignment results showed that the nucleotide identity similarities of the two genes among these strains were 80.5%?99.7% and 80.9%?100%, respectively. Phylogenetic analysis based on the NSP2 gene showed that... -
Sequence analysis of the spike gene of Porcine epidemic diarrhea virus isolated from South China during 2011-2015
Xiaoya Zhao, Zhili Li, Xiduo Zeng, Guanqun Zhang, Jianqiang Niu, Baoli Sun, Jingyun Ma 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 2호 14 237-243 (7 pages)
The spike gene of porcine epidemic diarrhea virus (PEDV) was sequenced from 55 South China field strains isolated from pigs with symptoms of diarrhea. The sequences were compared within the set of field strains as well as with reference strains available in GenBank. Within the 55 South China PEDV field strains, the deduced amino acid sequence identities ranged from 93.8% to 99.9 % and ranged from 90.7% to 99.5% when compared with the foreign reference strains in GenBank. Our phylogenetic... -
Development and evaluation of an immunochromatographic assay using a gp51 monoclonal antibody for the detection of antibodies against the bovine leukemia virus
Eun-Ju Kim, Kwang-Myun Cheong, Ha-Kyung Joung, Bo-Hye Kim, Jae-Young Song, In-Soo Cho, Kyoung-Ki Lee, Yeun-Kyung Shin 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 4호 6 479-487 (9 pages)
Infection of cattle with bovine leukemia virus (BLV) has been observed and reported worldwide, including in Korea. The onsite identification of infected cattle would help decreasing and eradicating BLV infections on farms. Here, we present a new immunochromatographic assay that employs monoclonal antibodies (MAbs) for the detection of antibodies against BLV in the field. BLV envelope glycoprotein (gp)51 was expressed in E. coli, and MAbs against recombinant BLV gp51 were generated for the... -
Cloning, expression and functional analysis of the duck Toll-like receptor 5 (TLR5) gene
Yuqiang Cheng, Yingjie Sun, Hengan Wang, Shuduan Shi, Yaxian Yan, Jing Li, Chan Ding, Jianhe Sun 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 6 37-46 (10 pages)
Toll-like receptor 5 (TLR5) is responsible for the recognition of bacterial flagellin in vertebrates. In the present study, the first TLR5 gene in duck was cloned. The open reading frame (ORF) of duck TLR5 (dTLR5) cDNA is 2580 bp and encodes a polypeptide of 859 amino acids. We also cloned partial sequences of myeloid differentiation factor 88, 2’-5’-oligoadenylate synthetase (OAS), and myxovirus resistance (Mx) genes from duck. dTLR5 mRNA was highly expressed in the... -
Identification of abnormal gene expression in bovine transgenic somatic cell nuclear transfer embryos
Jongki Cho, Sungkeun Kang, Byeong Chun Lee* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 8 225-231 (7 pages)
This study was conducted to investigate the expression of three genes related to early embryonic development in bovine transgenic cloned embryos. To accomplish this, development of bovine transgenic somatic cell nuclear transfer (SCNT) embryos was compared with non-transgenic embryos. Next, mRNA transcription of three specific genes (DNMT1, Hsp 70.1, and Mash2) related to early embryo development in transgenic SCNT embryos was compared between transgenic and non-transgenic SCNTs, parthenogenetic... -
Production and immunogenicity of chimeric virus-like particles containing the spike glycoprotein of infectious bronchitis virus
Lishan Lv, Xiaoming Li, Genmei Liu, Ran Li, Qiliang Liu, Huifang Shen, Wei Wang, Chunyi Xue, Yongchang Cao* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 6 209-216 (8 pages)
Infectious bronchitis virus (IBV) poses a severe threat to the poultry industry and causes heavy economic losses worldwide. Vaccination is the most effective method of preventing infection and controlling the spread of IBV, but currently available inactivated and attenuated virus vaccines have some disadvantages. We developed a chimeric virus-like particle (VLP)-based candidate vaccine for IBV protection. The chimeric VLP was composed of matrix 1 protein from avian influenza H5N1 virus and a... -
Frequency of group A rotavirus with mixed G and P genotypes in bovines: predominance of G3 genotype and its emergence in combination with G8/G10 types
Yashpal S. Malik*, Kuldeep Sharma, Nirupama Vaid, Somendu Chakravarti, K. M. Chandrashekar, Sanjay S. Basera, Rashmi Singh, Mina 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 8 271-278 (8 pages)
The present study describes the genotypic distribution of rotaviruses (RVs) in an Indian bovine population with unexpectedly higher proportions of G3 alone or in combination of G8/G10. PCR-genotyping confirmed that 39.4% (13/33) of the prevalent RVs were the G3 type while 60.6% (20/33) were dual G3G10 or G3G8 types. P typing revealed that 93.9% (31/33) of the samples were P[11] while 6.1% (2/33) possessed a dual P[1]P[11] type. Sequence analysis of the VP7 gene from G3 strains viz. B-46, 0970,... -
Sequence variations of the bovine prion protein gene (PRNP) in native Korean Hanwoo cattle
Sangho Choi, Hee-Jong Woo*, Jeongmin Lee* 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 3 127-137 (11 pages)
Bovine spongiform encephalopathy (BSE) is one of the fatal neurodegenerative diseases known as transmissible spongiform encephalopathies (TSEs) caused by infectious prion proteins. Genetic variations correlated with susceptibility or resistance to TSE in humans and sheep have not been reported for bovine strains including those from Holstein, Jersey, and Japanese Black cattle. Here, we investigated bovine prion protein gene (PRNP) variations in Hanwoo cattle [Bos (B.) taurus coreanae], a native...
