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Transcriptome Changes during Major Developmental Transitions Accompanied with Little Alteration of DNA Methylome in Two Pleurotus Species

文献类型： 外文期刊

作者： Wen, Jiawei 1 ; Zhang, Zhibin 1 ; Gong, Lei 1 ; Xun, Hongwei 2 ; Li, Juzuo 1 ; Qi, Bao 3 ; Wang, Qi 3 ; Li, Xiaomeng 1 ; Li, 1 ;

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

2.Jilin Acad Agr Sci, Changchun 130033, Jilin, Peoples R China

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

关键词： Pleurotus tuoliensis; P; eryngii; DNA methylation; epigenetics; gene expression; development; interspecific divergence

期刊名称：GENES （ 影响因子：4.096； 五年影响因子：4.339 ）

ISSN： 2073-4425

年卷期： 2019 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Pleurotus tuoliensis (Pt) and P. eryngii var. eryngii (Pe) are important edible mushrooms. The epigenetic and gene expression signatures characterizing major developmental transitions in these two mushrooms remain largely unknown. Here, we report global analyses of DNA methylation and gene expression in both mushrooms across three major developmental transitions, from mycelium to primordium and to fruit body, by whole-genome bisulfite sequencing (WGBS) and RNA-seq-based transcriptome profiling. Our results revealed that in both Pt and Pe the landscapes of methylome are largely stable irrespective of genomic features, e.g., in both protein-coding genes and transposable elements (TEs), across the developmental transitions. The repressive impact of DNA methylation on expression of a small subset of genes is likely due to TE-associated effects rather than their own developmental dynamics. Global expression of gene orthologs was also broadly conserved between Pt and Pe, but discernible interspecific differences exist especially at the fruit body formation stage, and which are primarily due to differences in trans-acting factors. The methylome and transcriptome repertories we established for the two mushroom species may facilitate further studies of the epigenetic and transcriptional regulatory mechanisms underpinning gene expression during development in Pleurotus and related genera.

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