Genetic characterization and evolutionary analysis of 4 Newcastle disease virus isolate full genomes from waterbirds in South China during 2003-2007

被引：26

作者：

Cai, Shaoxin ^{[2
]}

Li, Jun ^{[1
]}

Wong, Mabel Ting ^{[1
]}

Jiao, Peirong ^{[2
]}

Fan, Huiying ^{[2
]}

Liu, Dawei ^{[2
]}

Liao, Ming ^{[2
]}

Jiang, Jingwei ^{[1
]}

Shi, Mang ^{[1
]}

Lam, Tommy Tsan-Yuk ^{[1
]}

Ren, Tao ^{[2
]}

Leung, Frederick Chi-Ching ^{[1
]}

机构：

[1] Univ Hong Kong, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China

[2] S China Agr Univ, Coll Vet Med, Guangzhou 510640, Peoples R China

来源：

VETERINARY MICROBIOLOGY | 2011年 / 152卷 / 1-2期

基金：

国家高技术研究发展计划(863计划);

关键词：

Newcastle disease virus; Phylogenetic tree; Phylogenomic tree; Evolutionary analysis; Phylogeographic; Selective pressure; Waterfowls; SPECIES TREES; MIGRATORY WATERFOWL; PHYLOGENETIC INFERENCE; AVIAN INFLUENZA; PROTEIN GENE; OUTBREAKS; SEQUENCE; POPULATIONS; CHICKENS; STRAINS;

D O I：

10.1016/j.vetmic.2011.04.014

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Complete genomes of four Newcastle disease virus (NDV) strains, isolated from ducks and wild birds in Guangdong province of China from 2003 to 2007, were sequenced and analyzed in this study. Pathogenicity tests in chicken embryos and chickens illustrate that D3 and R8 are lentogenic, and W4 and P4 are mesogenic strains. Phylogenetic analysis using all six genes provides a high resolution profile for genotype designation as genotype I for D3 and R8 strains and genotype VI for W4 and P4 strains. In addition, molecular dating based on different genes suggests that D3 and R8 diverged from their common ancestor at around 1998: W4 and P4 diverged from their common ancestor at around 1999. Subsequent selective pressure analysis displayed specific traits of genes evolution in all 4 strains since their divergence from the recent common ancestor. Furthermore, the geographic origins of 4 strains were deduced to be from Europe via two independent introduction events by phylogeographical analysis. This provides insights to the potential influence of waterfowl migration on NDV epidemiology. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：46 / 54

页数：9

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