Identification of Resistance to Wet Bubble Disease and Genetic Diversity in Wild and Cultivated Strains of Agaricus bisporus
文献类型： 外文期刊
作者： Fu, Yongping 1 ; Wang, Xinxin 1 ; Li, Dan 1 ; Liu, Yuan 1 ; Song, Bing 1 ; Zhang, Chunlan 1 ; Wang, Qi 1 ; Chen, Meiyuan; 1 ;
作者机构： 1.Jilin Agr Univ, Coll Agr, Chinese Minist Educ Edible & Med Fungi, Engn Res Ctr, Changchun 130118, Peoples R China
2.Fujian Acad Agr Sci, Inst Edible Fungi, Fuzhou 350014, Peoples R China
3.Washington State Univ, Dept Crop
关键词： Agaricus bisporus;Mycogone perniciosa;highly resistant;SSR;population structure
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN： 1422-0067
年卷期： 2016 年 17 卷 10 期
页码：
收录情况： SCI
摘要： Outbreaks of wet bubble disease (WBD) caused by Mycogone perniciosa are increasing across the world and seriously affecting the yield of Agaricus bisporus. However, highly WBD-resistant strains are rare. Here, we tested 28 A. bisporus strains for WBD resistance by inoculating M. perniciosa spore suspension on casing soil, and assessed genetic diversity of these strains using 17 new simple sequence repeat (SSR) markers developed in this study. We found that 10 wild strains originating from the Tibetan Plateau in China were highly WBD-resistant strains, and 13 cultivated strains from six countries were highly susceptible strains. A total of 88 alleles were detected in these 28 strains, and the observed number of alleles per locus ranged from 2 to 8. Cluster and genetic structure analysis results revealed the wild resources from China have a relatively high level of genetic diversity and occur at low level of gene flow and introgression with cultivated strains. Moreover, the wild strains from China potentially have the consensus ancestral genotypes different from the cultivated strains and evolved independently. Therefore, the highly WBD-resistant wild strains from China and newly developed SSR markers could be used as novel sources for WBD-resistant breeding and quantitative trait locus (QTL) mapping of WBD-resistant gene of A. bisporus.
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