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Veterinary Research Forum، جلد ۱۵، شماره ۶، صفحات ۳۱۷-۳۲۳
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Genetic characterization of pigeon- origin avian avulavirus-1 reveals unique substitutions in F and HN proteins |
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| چکیده انگلیسی مقاله |
Since decades, Newcastle disease (ND) has become endemic in the poultry population of the Indian subcontinent. ND is a highly contagious disease of poultry and other avian species. However, the genetic nature of ND viruses circulating in the rock pigeons is unraveled. The present investigation is a part of Newcastle disease virus (NDV) surveillance in wild birds. Two velogenic NDV strains could be isolated from apparently healthy rock pigeons, thus establishing the status of carrier/reservoir host. The fusion protein cleavage site in the fusion protein has multiple basic amino acid (RRRKRF) motifs similar to velogenic isolates. Phylogenetic analysis based on complete fusion gene sequences confirmed that the isolates belong to NDV sub genotype XIII 2.2. Further analysis revealed several amino acid substitutions in the hypervariable region, heptad repeat regions and neutralizing epitopes of the fusion protein and heptad repeat regions and antigenic sites of the hemagglutinin-neuraminidase (HN) protein that are critical for fusion. A unique D170A substitution in the neutralizing epitope is identified that is critical for structure and function of the fusion protein. Mutations within the virulence determinants including fusion (F) and HN, elucidate continuous evolution of the viruses among the rock pigeons. Accidental spillover of these mutated viruses into commercial poultry operations may result in disease outbreaks with economic breakdown. |
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| کلیدواژه‌های انگلیسی مقاله |
Avian avulavirus,Chicken,Columba livia,Fusion protein Transmission |
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| نویسندگان مقاله |
Deepthi Balam |
Department of Veterinary Microbiology, College of Veterinary Science, Sri Venkateswara Veterinary University, Garividi, India
Ratnamma Doddamane |
Department of Veterinary Microbiology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Science University, Bangalore, India
Ramani Pushpa Rn |
Department of Veterinary Microbiology, NTR College of Veterinary Science, Sri Venkateswara Veterinary University, Gannavaram, India
Shrikrishna Isloor |
Department of Veterinary Microbiology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Science University, Bangalore, India
Veeregowda Bm |
Department of Veterinary Microbiology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Science University, Bangalore, India
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| نشانی اینترنتی |
https://vrf.iranjournals.ir/article_713582_d16edd446137b7a1aa240a15f2aabc5e.pdf |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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