DNA-based geographic typing of the gourmet mushroom <Emphasis Type="Italic">Tricholoma matsutake</Emphasis> traded in China |
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Authors: | Jianping Xu Matt Cadorin Yun-Jiang Liang Zhu L Yang |
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Institution: | (1) Department of Biology, Center for Environmental Genomics, McMaster University, 1280 Main St. West, Hamilton, ON, L8S 4K1, Canada;(2) Department of Horticulture, College of Agriculture, Yanbian University, 133400 Longjing, Jilin, China;(3) Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, 650204 Kunming, Yunnan, China |
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Abstract: | Tricholoma matsutake is among the most valuable mushrooms in the world, and natural populations of this species from different geographic regions
are priced very differently. To examine the geographic origins of ‘matsutake’ mushrooms traded in China, we analyzed the mushrooms
from two major production and trading regions in China, the Southwest and the Northeast, using a recently published retroelement-based
DNA marker. Our analyses showed that 67% of commercial matsutake claimed to be from the northeast were in fact genetically
identical to those from the southwest but were different from authentic northeast samples. The finding suggests that caution
should be applied to the authentication of commercial matsutake from northeast China. |
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Keywords: | Traceability DNA fingerprinting Gourmet mushroom Matsutake |
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