Specific Molecular Detection and Characterization of Anaplasma marginale in Mongolian Cattle

Journal of Veterinary Medical Science

Badgar BATTSETSEG²  Khukhuu ALTANGEREL¹  Banzragch BATTUR²  Kotaro MATSUMOTO³  Naoaki YOKOYAMA⁴  Thillaiampalam SIVAKUMAR¹  Hisashi INOKUMA³  Adrian Patalinghug YBAÑEZ³ 

[1] National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan;Laboratory of Molecular Genetics, Institute of Veterinary Medicine, Zaisan 210153, Ulaanbaatar, Mongolia;Department of Veterinary Clinical Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan;United Graduate School of Veterinary Sciences, Gifu University, Gifu 501–1193, Japan

关键词: Anaplasma marginale;    cattle;    Mongolia;    Msp5;    PCR;   

DOI  :  10.1292/jvms.12-0361

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(47)Cited-By(4)Anaplasma marginale is an etiologic agent of bovine anaplasmosis. This study aimed to molecularly detect and characterize A. marginale that is prevalent in Mongolian cattle populations. A highly specific and sensitive nested PCR (nPCR) method based on the Msp5 gene was developed to detect A. marginale (Msp5 nPCR). The method detected A. marginale from the positive DNA samples obtained from different countries, while no amplicons were observed from DNA samples of several other bovine blood pathogens tested. The detection limit of Msp5 nPCR was determined to be 2 copies/μl. The method was tested against field blood DNA samples prepared from 300 Mongolian cattle in 2010. Results indicated a prevalence rate of 8.7% (26 of 300). On the other hand, partial DNA fragments of an Anaplasma sp. closely related to A. ovis (with 95.0% identity) were detected using a different nPCR method based on groEL gene. The phylogenetic analyses based on the Msp5, groEL and 16S rRNA genes demonstrated that A. marginale isolates in Mongolia were not divergent from the isolates distributed in other countries. The present study successfully established a new nPCR assay that can detect A. marginale, and reported the first molecular detection and characterization of A. marginale and an Anaplasma sp. closely related to A. ovis in Mongolian cattle populations.

【 授权许可】

Unknown