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Phenotypic and Genetic Diversity of the Culinary-Medicinal Winter Mushroom Flammulina velutipes (Agaricomycetes) in China

文献类型： 外文期刊

作者： Wang, Qiuying 1 ; Zhang, Jingcheng 1 ; Li, Chuang 1 ; Wang, Bo 2 ; Nong, Wenyan 3 ; Bian, Yinbing 1 ; Xiao, Yang 1 ;

作者机构： 1.Huazhong Agr Univ, Inst Appl Mycol, 1 Shizishan St, Wuhan 430070, Hubei, Peoples R China

2.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu, Sichuan, Peoples R China

3.Chinese Univ Hong Kong, Sch Life Sci, Shatin, Hong Kong, Peoples R China

关键词： enokitake mushroom; Flammulina velutipes; genetic variation; medicinal mushrooms; phenotypic variation; SSR markers

期刊名称：INTERNATIONAL JOURNAL OF MEDICINAL MUSHROOMS （ 影响因子：1.921； 五年影响因子：1.879 ）

ISSN： 1521-9437

年卷期： 2018 年 20 卷 6 期

页码：

收录情况： SCI

摘要： Flammulina velutipes is one of the mushrooms produced most widely in East Asia. In this study we investigated phenotypic variations of 7 agronomic traits in 37 F. velutipes strains from China, and we analyzed their genetic diversity with 70 simple sequence repeat markers. The Shannon information index and gene diversity were 0.894 and 0.478, respectively, demonstrating high genetic variation among the tested strains. Poor genetic variation was found among white strains, in contrast to yellow ones. Analysis of population structure resolved 2 unambiguous genetic groups in the tested F. velutipes strains, with little differentiation between them (F-ST = 0.016). Yellow cultivars possibly originated from indigenous wild strains in southwest China. Phenotypic correlations were identified among the 7 traits. In particular, stipe length (SL) was significantly positively correlated with yield, indicating that SL could be used as an index for breeding high-yield strains. The 2 genetic groups, and white strains and yellow ones, showed significant differences between SL, yield, and the time interval (days) from mycelial scratch to formation of the first fruiting body. These results indicate that these 3 traits were stratified by population structure. Detection of genetic and phenotypic variations would lay the groundwork for further breeding of elite F. velutipes strains.

  • 相关文献

[1]Phenotypic and Genetic Diversity of the Culinary-Medicinal Winter Mushroom Flammulina velutipes (Agaricomycetes) in China. Zhang, Jingcheng,Li, Chuang,Bian, Yinbing,Xiao, Yang,Wang, Bo,Nong, Wenyan. 2018

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