Sequence analysis and biological characterization of virulent Avian avulavirus 1 isolated from asymptomatic migratory fowl

Ul-Rahman, Aziz and Yaqub, T and Imran, M and Habib, M and Sohail, T and Mukhtar, N and Shahid, M F and Munir, Muhammad and Shabbir, M Z (2019) Sequence analysis and biological characterization of virulent Avian avulavirus 1 isolated from asymptomatic migratory fowl. Acta virologica, 63 (2). pp. 223-228. ISSN 0001-723X

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Abstract

Continuous monitoring and surveillance of avian avulaviruses (AAvVs) in water/migratory fowl is imperative to ascertain the evolutionary dynamics of these viruses. Here, we report genomic and amino acid characteristics of two AAvVs strains isolated from asymptomatic waterfowl (Anas carolinensis). Sequence characteristics including the presence of virulent motif (112RRQKR↓F117) and biological assessment confirmed the virulent nature of study isolates. Phylogenetic analysis of complete fusion (F) and hemagglutinin-neuraminidase (HN), and hyper-variable region of F gene revealed clustering of both strains within genotype VII and sub-genotype VIIi. The inferred residue analysis of complete F and HN genes revealed a number of substitutions in functionally and structurally important motif/s compared to reference strains of each genotype (I-XI). This study concludes an evolutionary nature of avian avulavaris 1 (AAvV-1), ascertaining continuous surveillance of migratory fowl to better elucidate their infection, epidemiology and subsequent impacts on commercial and backyard poultry. Keywords: virulent AAvV-1; migratory fowl; genetic characterization; evolutionary analysis; Pakistan.

Item Type: Journal Article
Journal or Publication Title: Acta virologica
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2400/2406
Subjects:
Departments: Faculty of Health and Medicine > Biomedical & Life Sciences
ID Code: 135082
Deposited By: ep_importer_pure
Deposited On: 22 Jul 2019 15:30
Refereed?: Yes
Published?: Published
Last Modified: 18 Sep 2019 03:10
URI: https://eprints.lancs.ac.uk/id/eprint/135082

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