Complete genome analysis of velogenic Newcastle disease virus reference strain “Chimalhuacan- evolution of viral lineages in Mexico

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• 作者：Angel E. Absalón ; Andrea Mariano-Matías ; Laura J. García…
• 关键词：Chimalhuacan ; Newcastle disease virus ; Genotype V ; Avian diseases ; Velogenic
• 刊名：Virus Genes
• 出版年：2014
• 出版时间：October 2014
• 年：2014
• 卷：49
• 期：2
• 页码：233-236
• 全文大小：548 KB
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• 作者单位：Angel E. Absalón (1)
  Andrea Mariano-Matías (1)
  Laura J. García (1)
  Andrés Morales-Garzón (2)
  Arnulfo Toscano-Contreras (2)
  Eduardo Lucio-Decanini (2)
  Diana V. Cortés-Espinosa (1)
  
  1. Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada-Unidad Tlaxcala, Carr. Est. Santa Inés Tecuexcomac-Tepetitla Km.1.5, CP 90700, Tepetitla, Tlaxcala, Mexico
  2. Investigación Aplicada S.A. de C.V., 7 Norte No. 416 Col. Centro, CP 75740, Tehuacán, Puebla, Mexico
  
• ISSN：1572-994X

文摘

Newcastle disease virus with velogenic characteristics circulates in the poultry industry in Mexico and various other American countries. In Mexico, vaccine efficacy testing to obtain commercial registration is reliant on a challenge with a velogenic strain known colloquially as Chimalhuacan due to the site where it was isolated. In this paper, we performed a full genome sequencing of the Chimalhuacan strain. The strain belongs to Class II of?APMV, particularly genotype V. The viral RNA genome is 15,192?nt in size and contains six genes: 3-NP-P-M-F-HN-L 5- The 3-leader sequence is 55?nt in size and the 5-trailer sequence 113?nt. The deduced amino acid sequence confirms a velogenic genotype with four basic amino acids at the cleavage site: 112RRQKR?/sup>F117. In addition, evolutionary relatedness based on the gene sequence of the fusion protein indicates that this strain is the ancestor of the strains currently circulating in Mexico.