1887

Abstract

A quantitative real-time PCR (qPCR) followed by high resolution melting (HRM) analysis was developed for the differentiation of species. Rapid differentiation of species is necessary for the effective diagnosis and management of tuberculosis. In this study, the 16S rRNA gene was tested as the target since this has been identified as a suitable target for the identification of mycobacteria species. During the temperature gradient and primer optimization process, the melting peak (Tm) analysis was determined at a concentration of 50 ng DNA template and 0.3, 0.4 and 0.5 µM primer. The qPCR assay for the detection of other mycobacterial species was done at the Tm and primer concentration of 62 °C and 0.4 µM, respectively. The HRM analysis generated cluster patterns that were specific and sensitive to distinguished small sequence differences of the species. This study suggests that the 16S rRNA-based real-time PCR followed by HRM analysis produced unique cluster patterns for species of and could differentiate the closely related mycobacteria species.

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/content/journal/jmm/10.1099/jmm.0.072611-0
2014-10-01
2019-10-23
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