DAO 94:101-105 (2011)  -  DOI: https://doi.org/10.3354/dao02327

Comparison of sensitivity between real-time ­detection of a TaqMan assay for Batrachochytrium dendrobatidis and conventional detection

Stephen Garland1,*, John Wood2, Lee F. Skerratt1

1Amphibian Disease Ecology Group, School of Public Health, Tropical Medicine and Rehabilitation Sciences, James Cook University, Townsville, Queensland 4811, Australia
2Pisces Molecular, 1600 Range Street, Suite 201, Boulder, Colorado 80301, USA

ABSTRACT: A sensitive and quantitative TaqMan® assay for the causative agent of chytridiomycosis in amphibians (Batrachochytrium dendrobatidis) has been developed and is routinely used in ­diagnostic laboratories. We assessed whether the real time detection of the TaqMan® assay was as sensitive as the detection of the PCR product by agarose gel electrophoresis and ethidium bromide staining. We found, for practical purposes, that gel-based detection of the diagnostic fragment produced by means of the TaqMan® assay or by conventional PCR that used a different polymerase and reaction mix was as sensitive as the real-time detection of the TaqMan® assay. We recommend the qualified use of conventional PCR amplification combined with agarose gel electrophoresis and ethidium bromide staining for studies where only prevalence data are required, funding for equipment is limited or the acquisition of a real-time system is not cost effective.


KEY WORDS: Batrachochytrium dendrobatidis · Chytridiomycosis · TaqMan assay · Conventional PCR


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Cite this article as: Garland S, Wood J, Skerratt LF (2011) Comparison of sensitivity between real-time ­detection of a TaqMan assay for Batrachochytrium dendrobatidis and conventional detection. Dis Aquat Org 94:101-105. https://doi.org/10.3354/dao02327

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