Cross-Genera PCR Amplification of DNA from Apicomplexan Parasites

  • Philippe Gil de Mendonça Institute of Comparative Tropical Medicine and Parasitology, Ludwig Maximilian University, Munich, Germany
Keywords: Babesia, Theileria, Hepatozoon, Toxoplasma, Hammondia

Abstract

Background: The discovery of an unexpected genetic sequence raised doubts about the specificity of a primer pair targeting Babesia spp. and Theileria spp. This study aimed to check the specificity of this primer pair.Methods: Conventional end-point PCR and real-time PCR protocols using primers targeting the 18S rRNA gene V4 hypervariable region of Babesia spp. and Theileria spp. were tested for potential cross-genera amplification using DNA from a palette of parasitic protists and pathogenic bacteria as a template. These investigations took place at the Ludwig Maximilian University of Munich (Germany) in 2010 as part of the EDEN project.Results: Successful amplification was obtained with DNA from five apicomplexan genera: Babesia, Theileria, Hepa­tozoon, Toxoplasma, and Hammondia. No amplicons were obtained when DNA from Leishmania infantum or bacte­ria within the genera Borrelia, Leptospira or Anaplasma was used as a template.Conclusion: This cross-genera amplification ability is useful for the quick exclusion of many parasite species from PCR negative diagnostic samples. Accurate species identification from PCR positive samples requires genetic se­quencing of the amplicon.

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Published
2018-08-07
How to Cite
1.
Mendonça PG de. Cross-Genera PCR Amplification of DNA from Apicomplexan Parasites. jad. 12(3):321-4.
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Short Communication