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A Novel Enzootic Nasal Tumor Virus Circulating in Goats from Southern China

文献类型: 外文期刊

作者: Zhai, Shao-Lun 1 ; Lv, Dian-Hong 1 ; Xu, Zhi-Hong 1 ; Yu, Jie-Shi 2 ; Wen, Xiao-Hui 1 ; Zhang, He 1 ; Chen, Qin-Ling 1 ;

作者机构: 1.Guangdong Acad Agr Sci, Sci Observat & Expt Stn Vet Drugs & Diagnost Tech, Key Lab Anim Dis Prevent Guangdong Prov,Key Lab A, Inst Anim Hlth,Anim Dis Diagnost Ctr,Minist Agr &, Guangzhou 510640, Guangdong, Peoples R China

2.South Dakota State Univ, Dept Biol & Microbiol, Brookings, SD 57007 USA

3.Univ Hong Kong, State Key Lab Emerging Infect Dis, Hong Kong, Peoples R China

4.Univ Hong Kong, Dept Microbiol, Hong Kong, Peoples R China

5.Univ Hong Kong, Collaborat Innovat Ctr Diag & Treatment Infect Di, Hong Kong, Peoples R China

关键词: enzootic nasal tumor virus; ENTV-2; novel variation; genetic diversity; goats; Guangdong province

期刊名称:VIRUSES-BASEL ( 影响因子:5.048; 五年影响因子:5.127 )

ISSN:

年卷期: 2019 年 11 卷 10 期

页码:

收录情况: SCI

摘要: Enzootic nasal tumor virus (ENTV) has two types, ENTV-1 in sheep and ENTV-2 in goats, respectively. In China, the incidence of ENTV-2 related diseases has increased year by year. In this study, we reported an outbreak of ENTV-2 in a commercial goat farm in Qingyuan city, Guangdong province, southern China. A full-length genome of ENTV-2 (designated GDQY2017), with 7479 base pairs, was sequenced. Although GDQY2017 shared the highest nucleotide identity with a Chinese ENTV-2 isolate (ENTV-2CHN4, GenBank accession number KU258873), it possesses distinct genome characteristics undescribed, including a non-continuous 21-nucleotide insertion in the gag gene and a non-continuous 12-nucleotide deletion in the env gene. Notably, most of these indel nucleotide sequences were originated from a Chinese jaagsiekte sheep retrovirus (JSRV) isolate (GenBank accession number DQ838494). In the gag and env genes, GDQY2017 was phylogenetically related to those Chinese ENTV-2 isolates and a Chinese JSRV isolate (DQ838494). For GDQY2017-like viruses, more surveillance work should be made to explain their pathogenicity in goat herds. To our knowledge, this study represents the first to demonstrate the circulating pattern of ENTV-2 in Guangdong province, China, which will help to better understand the epidemiology and genetic diversity of ENTV-2.

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