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Genome characterization and phylogenetic analysis of a lineage IV peste des petits ruminants virus in southern China

文献类型： 外文期刊

作者： Li, Xiao-Peng 1 ; Zhai, Shao-Lun 2 ; He, Dong-Sheng 1 ; Guo, Peng-Ju 3 ; Lv, Dian-Hong 2 ; Wen, Xiao-Hui 2 ; Luo, Man- 1 ;

作者机构： 1.South China Agr Univ, Coll Vet Med, Guangzhou 510642, Guangdong, Peoples R China

2.Guangdong Acad Agr Sci, Anim Dis Diagnost Ctr, Inst Anim Hlth, Guangdong Key Labratory Anim Dis Prevent, Guangzhou 510640, Guangdong, Peoples R China

3.Guangdong Key Lab Lab Animals, Guangzhou 510663, Guangdong, Peoples R China

关键词： Peste des petits ruminants virus;Complete genome sequence;Imported case;Goat;Southern China

期刊名称：VIRUS GENES （ 影响因子：2.332； 五年影响因子：2.0 ）

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收录情况： SCI

摘要： Since 2013, the second outbreak of peste des petits ruminants (PPR) caused by Peste des petits ruminants virus (PPRV) has spread over more than 20 provinces, municipalities, and autonomous regions in China, resulting in major economic losses for livestock industry. In 2014, we encountered a clinical PPR case on a goat farm in Guangdong province, southern China. The complete genome of this PPRV strain, named CH/GDDG/2014, was sequenced to determine its similarities and differences with other strains. The CH/GDDG/2014 genome comprised 15,954 nucleotides (six nucleotides more than classical PPRVs identified before 2013, but complying with the rule of six) with six open reading frames encoding nucleocapsid protein, phosphoprotein, matrix protein, fusion protein, hemagglutinin, and large polymerase protein, respectively. The whole-genome-based alignment analysis indicated that CH/GDDG/2014 had the most proximate consensus (99.8 %) to China/XJYL/2013 and the least consensus (87.2 %) to KN5/2011. The phylogenetic analysis showed that CH/GDDG/2014 was clustered in one branch (lineage IV) with other emerging strains during the second outbreak. This study is the first report describing the whole-genome sequence of PPRV in Guangdong province, southern China and also suggests the PPR outbreak may be closely related to illegal cross-regional importation of goats.

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