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자료유형
학술저널
저자정보
Park, Sook-Young (Korean Lichen Research Institute, Sunchon National University) Jang, Seol-Hwa (Korean Lichen Research Institute, Sunchon National University) Oh, Soon-Ok (Korean Lichen Research Institute, Sunchon National University) Kim, Jung A (Korean Lichen Research Institute, Sunchon National University) Hur, Jae-Seoun (Korean Lichen Research Institute, Sunchon National University)
저널정보
한국균학회 Mycobiology Mycobiology 제42권 제4호
발행연도
2014.1
수록면
311 - 316 (6page)

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Lichen studies, including biodiversity, phylogenetic relationships, and conservation concerns require definitive species identification, however many lichens can be challenging to identify at the species level. Molecular techniques have shown efficacy in discriminating among lichen taxa, however, obtaining genomic DNA from herbarium and fresh lichen thalli by conventional methods has been difficult, because lichens contain high proteins, polysaccharides, and other complex compounds in their cell walls. Here we report a rapid, easy, and inexpensive protocol for extracting PCR-quality DNA from various lichen species. This method involves the following two steps: first, cell breakage using a beadbeater; and second, extraction, isolation, and precipitation of genomic DNA. The procedure requires approximately 10 mg of lichen thalli and can be completed within 20 min. The obtained DNAs were of sufficient quality and quantity to amplify the internal transcribed spacer region from the fungal and algal lichen components, as well as to sequence the amplified products. In addition, 26 different lichen taxa were tested, resulting in successful PCR products. The results of this study validated the experimental protocols, and clearly demonstrated the efficacy and value of our KCl extraction method applied in the fungal and algal samples.

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