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  3. School of Veterinary Medicine / 獸醫專業學院
  4. Veterinary Medicine / 獸醫學系
  5. Phylogenetic characterization of Newcastle disease viruses isolated in Taiwan during 2003-2006
 
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Phylogenetic characterization of Newcastle disease viruses isolated in Taiwan during 2003-2006

Resource
Veterinary Microbiology,123,194-202.
Journal
Veterinary Microbiology
Journal Issue
123
Pages
194-202
Date Issued
2007-10
Date
2007-10
Author(s)
Lien, YY
Lee, JW
Su, HY
Tsai, HJ
Tsai, MC
Hsieh, CY
HSIANG-JUNG TSAI  
DOI
10.1016/j.vetmic.2007.03.006
URI
https://www.scopus.com/record/display.uri?eid=2-s2.0-34250202867&origin=resultslist&sort=plf-f&cite=2-s2.0-34250202867&src=s&imp=t&sid=4f30ff2d4887b6195aa54478cbaa1485&sot=cite&sdt=a&sl=0
Abstract
Isolates of Newcastle disease virus (NDV) from chicken cases were obtained from various locations in Taiwan during 2003-2006 and were genotypically analyzed by using reverse transcription polymerase chain reaction (RT-PCR) with primers specific to the viral fusion (F) protein gene (534 bp). Part of the amplified F protein DNA product (nucleotide sequence 47-418) and the deduced amino acid sequences were compared phylogenetically with those from strains previously reported in Taiwan and other geographic regions. Our results showed that all Taiwanese isolates (n = 20) collected during 2003-2006, according to the phylogenetic tree, belong to the genotype VIId. In addition, all the six Taiwanese isolates obtained in 2003, carry the motif 112R-R-Q-K-R116 and have the amino acid L23 replaced by F23 (assigned as Group 1). On the other hand, 12 out of the 14 Taiwanese isolates obtained during 2004-2006 possess the motif 112R-R-K-K-R116 and have the amino acid G74, instead of E74 (assigned as Group 2). To our best knowledge, this is the first reported VIId isolates that possess the sequences of G74/112R-R-K-K-R116 within the F0 protein. Since a high mortality, severe clinical signs, typical postmortem lesions, and a high intra-cerebral pathogenicity index (ICPI) were observed in the NDV-infected chickens, these isolates acquired between 2003 and 2006 are considered as the velogenic type. The Group 2 viruses have become dominant and responsible for the majority of Taiwanese outbreaks during recent years. Based on our phylogenetic analysis, it can be postulated that these isolates were evolved from previously reported local strains, and the Group 2 family emerged the latest in the genotype VIId. The information is fundamental to improving the efficiency of controlling strategies and vaccine development for NDV. ? 2007 Elsevier B.V. All rights reserved.
SDGs

[SDGs]SDG3

Other Subjects
virus fusion protein; amino acid sequence; article; chicken; controlled study; Newcastle disease paramyxovirus; nonhuman; nucleotide sequence; phylogeny; reverse transcription polymerase chain reaction; Taiwan; virus isolation; Amino Acid Sequence; Animals; Chickens; Disease Outbreaks; Gene Expression Regulation, Viral; Newcastle Disease; Newcastle disease virus; Phylogeny; Poultry Diseases; Taiwan; Time Factors; Viral Fusion Proteins; Gallus gallus; Newcastle disease virus
Type
journal article

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