Molecular epidemiology of J-subgroup avian leukosis virus isolated from meat-type chickens in southern China between 2013 and 2014

Molecular epidemiology of J-subgroup avian leukosis virus isolated from meat-type chickens in... Members of avian leukosis virus subgroup J (ALV-J) cause various diseases associated with tumor formation and decreased fertility, resulting in major economic losses in the poultry industry worldwide. To assess the status of ALV-J infection in meat-type chickens in southern China, the molecular epidemiology of ALV-J strains was investigated. A total of 265 clinical samples collected from southern China from 2013 to 2014 were investigated in this study for the presence of ALV-J, which resulted in 12 virus isolates. Phylogenetic analysis showed that 91.7 % (11/12) of the ALV-J isolates have possessed high homology to Chinese layer isolates and belong to one subgroup. One of the ALV isolates (designated GD1411-1) was relatively closely related to the ALV-J broiler isolates, indicating that the GD1411-1 isolate might be a transition strain. Several unique nucleotide substitutions in gp85 and the U3 region were detected in all 12 ALV-J isolates. This study provides some interesting information on the molecular characterization of ALV-J isolates. These findings will be beneficial for understanding of the pathogenic mechanism of ALV-J infection. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Molecular epidemiology of J-subgroup avian leukosis virus isolated from meat-type chickens in southern China between 2013 and 2014

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Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-016-3003-8
Publisher site
See Article on Publisher Site

Abstract

Members of avian leukosis virus subgroup J (ALV-J) cause various diseases associated with tumor formation and decreased fertility, resulting in major economic losses in the poultry industry worldwide. To assess the status of ALV-J infection in meat-type chickens in southern China, the molecular epidemiology of ALV-J strains was investigated. A total of 265 clinical samples collected from southern China from 2013 to 2014 were investigated in this study for the presence of ALV-J, which resulted in 12 virus isolates. Phylogenetic analysis showed that 91.7 % (11/12) of the ALV-J isolates have possessed high homology to Chinese layer isolates and belong to one subgroup. One of the ALV isolates (designated GD1411-1) was relatively closely related to the ALV-J broiler isolates, indicating that the GD1411-1 isolate might be a transition strain. Several unique nucleotide substitutions in gp85 and the U3 region were detected in all 12 ALV-J isolates. This study provides some interesting information on the molecular characterization of ALV-J isolates. These findings will be beneficial for understanding of the pathogenic mechanism of ALV-J infection.

Journal

Archives of VirologySpringer Journals

Published: Aug 9, 2016

References

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