Phylogenetic analysis of env gene of bovine leukemia virus strains spread in Miyazaki prefecture, Japan

The Journal of Veterinary Medical Science

Abdel-Moneim M. MOUSTAFA¹  Faysal K. ARNAOUT²  El Sayed M. GALILA²  Junzo NORIMINE²  Hirohisa MEKATA²  Yumi KIRINO³  Satoshi SEKIGUCHI³  Marawan A. MARAWAN³  Takumi HAYASHI⁴  Yoichiro HORII⁵ 

[1] Division of International Cooperation and Education, Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan;Infectious Diseases, Department of Animal Medicine, Faculty of Veterinary Medicine, Benha University, Al Qalyubia Governorate 13511, Egypt;Laboratory of Animal Infectious Disease and Prevention, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan;Organization for Promotion of Tenure Track, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan;Project for Zoonoses Education and Research, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan

关键词: BLV;    genotype;    phylogenetic analysis;   

DOI  :  10.1292/jvms.17-0055

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

To understand how the latest dominant bovine leukemia virus (BLV) strains were introduced and spread in the Miyazaki prefecture, we collected blood samples from 3 geographic areas (north, central and south) and carried out sequence analysis of the BLV env gene. Two genotypes, genotype I, and III, were identified and the majority of the strains belonged to genotype I (71/74). To clarify a route of BLV introduction, we divided the strains into 20 subgenotypes based on their nucleotide sequences and performed phylogenetic analysis. Our study indicated that common BLV strains were comparatively evenly distributed even in the area, where the farmers have not introduced cattle from other areas and the cattle have limited exposure to BLV infection in grazing fields.

【 授权许可】

Unknown