PMID: 8582350Sep 1, 1995Paper

Polymerase chain reaction fingerprinting in fungi using single primers specific to minisatellites and simple repetitive DNA sequences: strain variation in Cryptococcus neoformans

Electrophoresis
W Meyer, Thomas G Mitchell

Abstract

Minisatellites and simple repetitive DNA sequence motifs are used as conventional oligonucleotide probes in DNA-hybridization-based fingerprinting. The same oligonucleotides can be used as single primers in the polymerase chain reaction (PCR) to generate individual PCR fingerprints. In this study, the simple repetitive sequences, (CA)8, (CT)8, (CAC)5, (GTG)5, (GACA)4 and (GATA)4, and a minisatellite core sequence derived from the wild-type phage M13 (5' GAGGGTGGCGGTTCT 3') were used as specific, single primers to amplify hypervariable repetitive DNA sequences during PCR analysis. The potential applications of this techniques are demonstrated with clinical isolates of the human pathogenic yeast, Cryptococcus neoformans. PCR fingerprint patterns have remained stable after long-term in vitro passage ( > 2 1/2 years to date). Hybridization of the primers to blots of electrophorectically separated chromosomes demonstrated that the target sequences recognized by most of the primers are dispersed through the entire yeast genome. Sequence analysis of the cloned bands obtained by PCR fingerprinting indicated that if the same or extremely similar, inversely oriented tandem repeats are located close to each other, when only one repeat-spe...Continue Reading

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Citations

Sep 22, 2005·Journal of Industrial Microbiology & Biotechnology·Eurípedes Alves da Silva FilhoMarcos Antonio de Morais
Jun 2, 2005·Antonie van Leeuwenhoek·Eurípedes Alves da Silva-FilhoDiogo Ardaillon Simões
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