Development of multiplex PCR assay for concurrent detection of tick borne haemoparasitic infections in bovines.

Abstract:

:This study describes development and evaluation of a multiplex PCR assay for simultaneous detection of Theileria annulata, Babesia bigemina and Anaplasma marginale infections in bovines. The assay was developed using parasites specific genomic DNA and three sets of PCR primers targeting the Tams1, 18S rRNA and 16S rRNA genes of T. annulata, B. bigemina and A. marginale, respectively. Blood samples collected from a total of 461 bovines, suspected for haemoparasitic infections, were examined microscopically to record the status of infection and simultaneously, genomic DNA extracted from these blood samples were utilized for the optimization and validation of multiplex PCR assay. Microscopic examination of blood samples revealed presence of single and multiple species of haemoparasites in 25.8% and 2.4% samples, respectively. Results of multiplex PCR revealed the presence of single haemoparasitic species infection in 159 cases (34.5%), whereas mixed infection was recorded in 82 (17.8%) samples. Occurrence of individual species infection detected by mPCR in the study was 26.03% (120/461) for T. annulata, 3.25% (15/461) for B. bigemina and 5.20% (24/461) for A. marginale. The detection limit of multiplex PCR assay was at the template dilutions of 10-6, 10-6 and 10-4, which corresponded to 0.1 pg, 0.1 pg and 10.0 pg of DNA for T. annulata, A. marginale, and B. bigemina, respectively. Based on the high diagnostic sensitivity and throughput, multiplex PCR assay developed in the present study could be exploited as a tool to conduct large-scale epidemiological survey for tick-borne haemoparasitic infection of bovines.

journal_name

Acta Parasitol

journal_title

Acta parasitologica

authors

Kundave VR,Ram H,Banerjee PS,Garg R,Mahendran K,Ravikumar GVPPS,Tiwari AK

doi

10.1515/ap-2018-0090

subject

Has Abstract

pub_date

2018-12-19 00:00:00

pages

759-765

issue

4

eissn

1230-2821

issn

1896-1851

pii

/j/ap.2018.63.issue-4/ap-2018-0090/ap-2018-0090.xm

journal_volume

63

pub_type

杂志文章