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J. Fungi 2016, 2(2), 12; doi:10.3390/jof2020012

Colony-PCR Is a Rapid Method for DNA Amplification of Hyphomycetes

Institute of Microbiology, University of Innsbruck, Innsbruck 6020, Austria
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Academic Editor: Gary A. Strobel
Received: 2 March 2016 / Revised: 14 April 2016 / Accepted: 15 April 2016 / Published: 19 April 2016
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Abstract

Fungal pure cultures identified with both classical morphological methods and through barcoding sequences are a basic requirement for reliable reference sequences in public databases. Improved techniques for an accelerated DNA barcode reference library construction will result in considerably improved sequence databases covering a wider taxonomic range. Fast, cheap, and reliable methods for obtaining DNA sequences from fungal isolates are, therefore, a valuable tool for the scientific community. Direct colony PCR was already successfully established for yeasts, but has not been evaluated for a wide range of anamorphic soil fungi up to now, and a direct amplification protocol for hyphomycetes without tissue pre-treatment has not been published so far. Here, we present a colony PCR technique directly from fungal hyphae without previous DNA extraction or other prior manipulation. Seven hundred eighty-eight fungal strains from 48 genera were tested with a success rate of 86%. PCR success varied considerably: DNA of fungi belonging to the genera Cladosporium, Geomyces, Fusarium, and Mortierella could be amplified with high success. DNA of soil-borne yeasts was always successfully amplified. Absidia, Mucor, Trichoderma, and Penicillium isolates had noticeably lower PCR success. View Full-Text
Keywords: soil fungi; direct PCR; barcoding; fungal isolates; yeasts; reference library construction soil fungi; direct PCR; barcoding; fungal isolates; yeasts; reference library construction
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MDPI and ACS Style

Walch, G.; Knapp, M.; Rainer, G.; Peintner, U. Colony-PCR Is a Rapid Method for DNA Amplification of Hyphomycetes. J. Fungi 2016, 2, 12.

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