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The evolution of genomic and epigenomic features in two Pleurotus fungi

文献类型： 外文期刊

作者： Zhang, Zhibin 1 ; Wen, Jiawei 1 ; Li, Juzuo 1 ; Ma, Xintong 1 ; Yu, Yanan 1 ; Tan, Xiao 2 ; Wang, Qi 3 ; Liu, Bao 1 ; Li, Xi 1 ;

作者机构： 1.Northeast Normal Univ, Minist Educ MOE, Key Lab Mol Epigenet, Changchun 130024, Jilin, Peoples R China

2.JAAS, Changchun 130033, Jilin, Peoples R China

3.Jilin Agr Univ, Minist Educ MOE Edible & Med Fungi, Engn Res Ctr, Changchun 130118, Jilin, Peopl

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2018 年 8 卷

页码：

收录情况： SCI

摘要： Pleurotus tuoliensis (Bailinggu, designated Pt) and P. eryngii var. eryngii (Xingbaogu, designated Pe) are highly valued edible mushrooms. We report de novo assemblies of high-quality genomes for both mushrooms based on PacBio RS II sequencing and annotation of all identified genes. A comparative genomics analysis between Pt and Pe with P. ostreatus as an outgroup taxon revealed extensive genomic divergence between the two mushroom genomes primarily due to the rapid gain of taxon-specific genes and disruption of synteny in either taxon. The re-appraised phylogenetic relationship between Pt and Pe at the genome-wide level validates earlier proposals to designate Pt as an independent species. Variation of the identified wood-decay-related gene content can largely explain the variable adaptation and host specificity of the two mushrooms. On the basis of the two assembled genome sequences, methylomes and the regulatory roles of DNA methylation in gene expression were characterized and compared. The genome, methylome and transcriptome data of these two important mushrooms will provide valuable information for advancing our understanding of the evolution of Pleurotus and related genera and for facilitating genome-and epigenome-based strategies for mushroom breeding.

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