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http://dx.doi.org/10.4489/MYCO.2009.37.3.183

Phylogenetic Relationship in Different Commercial Strains of Pleurotus nebrodensis Based on ITS Sequence and RAPD  

Alam, Nuhu (Department of Biology, University of Incheon)
Shim, Mi-Ja (Department of Life Science, University of Seoul)
Lee, Min-Woong (Department of Biology, Dongguk University)
Shin, Pyeong-Gyun (Mushroom Research Division, Dept. of Herbal Crop Research, National Inst. of Horticulture & Herbal Science, RDA)
Yoo, Young-Bok (Mushroom Research Division, Dept. of Herbal Crop Research, National Inst. of Horticulture & Herbal Science, RDA)
Lee, Tae-Soo (Department of Biology, University of Incheon)
Publication Information
Mycobiology / v.37, no.3, 2009 , pp. 183-188 More about this Journal
Abstract
The molecular phylogeny in nine different commercial cultivated strains of Pleurotus nebrodensis was studied based on their internal transcribed spacer (ITS) region and RAPD. In the sequence of ITS region of selected strains, it was revealed that the total length ranged from 592 to 614 bp. The size of ITS1 and ITS2 regions varied among the strains from 219 to 228 bp and 211 to 229 bp, respectively. The sequence of ITS2 was more variable than ITS1 and the region of 5.8S sequences were identical. Phylogenetic tree of the ITS region sequences indicated that selected strains were classified into five clusters. The reciprocal homologies of the ITS region sequences ranged from 99 to 100%. The strains were also analyzed by RAPD with 20 arbitrary primers. Twelve primers were efficient to applying amplification of the genomic DNA. The sizes of the polymorphic fragments obtained were in the range of 200 to 2000 bp. RAPD and ITS analysis techniques were able to detect genetic variation among the tested strains. Experimental results suggested that IUM-1381, IUM-3914, IUM-1495 and AY-581431 strains were genetically very similar. Therefore, all IUM and NCBI gene bank strains of P. nebrodensis were genetically same with some variations.
Keywords
ITS; Pleurotus nebrodensis; phylogenetic relation; RAPD;
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