Multi-template polymerase chain reaction

Abstract

PCR is a formidable and potent technology that serves as an indispensable tool in a wide range of biological disciplines. However, due to the ease of use and often lack of rigorous standards many PCR applications can lead to highly variable, inaccurate, and ultimately meaningless results. Thus, rigorous method validation must precede its broad adoption to any new application. Multi-template samples possess particular features, which make their PCR analysis prone to artifacts and biases: multiple homologous templates present in copy numbers that vary within several orders of magnitude. Such conditions are a breeding ground for chimeras and heteroduplexes. Differences in template amplification efficiencies and template competition for reaction compounds undermine correct preservation of the original template ratio. In addition, the presence of inhibitors aggravates all of the above-mentioned problems. Inhibitors might also have ambivalent effects on the different templates within the same sample. Yet, no standard approaches exist for monitoring inhibitory effects in multitemplate PCR, which is crucial for establishing compatibility between samples.

Keywords

Chimera; Multi-template PCR

Published in

Biomolecular Detection and Quantification
2014, volume: 2, pages: 11-29
Publisher: Elsevier GmbH

SLU Authors

• Kalle Kossio, Elena

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Analytical Chemistry

Publication identifier

• DOI: https://doi.org/10.1016/j.bdq.2014.11.002

Permanent link to this page (URI)

https://res.slu.se/id/publ/132125