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KMID : 0379120220500030225
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Korean Journal of Mycology
2022 Volume.50 No. 3 p.225 ~ p.233
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Development of HRM Markers for Discrimination of Pyogo (Lentinula edodes) Cultivars Sanjo 701 and Chamaram
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Moon Su-Yun
Ryu Ho-Jin
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Abstract
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Pyogo (Shiitake, Lentinula edodes) is one of the most important edible mushrooms because of its outstanding nutritive and medicinal value. In the registration and protection procedure for newly developed mushroom cultivars, the application of molecular markers that can supplement the morphological characteristic-based distinction has been strongly requested.
Sanjo 701 and Chamaram, newly developed at the Federation Forest Mushroom Research Center of Korea, have been characterized as innovative cultivars suitable for customer demands because of their high yields and cultivation rates. However, no technical tools can protect the rights to these important cultivars. In this study, using comparative genomic information from 23 commercially available pyogo cultivars, we identified single nucleotide polymorphisms (SNPs) that accurately differentiated Sanjo701 and Chamaram from the other cultivars. We also developed high-resolution melting analysis (HRM)-based SNP markers that discriminate among the tested 23 pyogo cultivars. The developed SNP markers can be utilized for rapid, accurate identification of pyogo cultivars with low genetic diversity and to prevent cultivar contamination caused by illegally distributed inocula. In addition, these markers can serve as a crucial scientific basis for securing the right to conserve new cultivars in international markets.
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KEYWORD
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Cultivar discrimination, HRM (high-resolution melting), Lentinula edodes, Molecular marker, SNP (single nucleotide polymorphism)
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