Virologica Sinica 2010;25(2):130-136

doi:10.1007/s12250-010-3095-3

Isolation and Identification of a Subgroup A Avian Leukosis Virus from Imported Meat-type Grand-parent Chickens

Qingchan ZHANG ; Dongmin ZHAO ; Huijun GUO ; Zhizhong CUI

Keywords

Avian leukosis virus(ALV); Subgroup A; Envelope gp85; Imported Chicken Breeders

Country

China

Language

Chinese

Abstract

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.