Isolation and identification of a subgroup A avian leukosis virus from imported meat-type grand-parent chickens.
An exogenous avian leukosis virus (ALV) strain SDAU09C1 was isolated in DF-1 cells from one of 240 imported 1-day-old white meat-type grand parent breeder chicks. Inoculation of SDAU09C1 in ALV-free chickens induced antibody reactions specific to subgroup A or B. But gp85 amino acid sequence comparisons indicated that SDAU09C1 fell into subgroup A; it had homology of 88.8%-90.3% to 6 reference strains of subgroup A, much higher compared to other subgroups including subgroup B. This is the first report for ALV of subgroup A isolated from imported breeders.
College of Veterinary Medicine, Shandong Agricultural University, Taian 271018, China.
Qing-chan
QC
Zhang
Dong-min
DM
Zhao
Hui-jun
HJ
Guo
Zhi-zhong
ZZ
Cui
D000818:Animals; D001353:Avian Leukosis / Q000175:diagnosis* / Q000821:virology; D001354:Avian Leukosis Virus / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D002460:Cell Line; D002645:Chickens / Q000821:virology*; D005838:Genotype; D017386:Sequence Homology, Amino Acid; D014759:Viral Envelope Proteins / Q000235:genetics
D014759:Viral Envelope Proteins; C107403:glycoprotein 85, avian leukosis virus