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De novo transcriptomic analysis during Lentinula edodes fruiting body growth
Yingzhu Wang1, Xianlu Zeng1, Wenguang Liu1
1The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Institute of Genetics and Cytology, School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, China.
Gene
|October 26, 2017
Summary
This study used RNA sequencing to analyze the growth of Lentinula edodes fruiting bodies. Key molecular pathways like purine metabolism were identified, revealing candidate genes for this important mushroom.
Area of Science:
- Mycology
- Molecular Biology
- Genomics
Background:
- Lentinula edodes (shiitake mushroom) is valued for culinary and therapeutic uses.
- Understanding its fruiting body development is crucial for its cultivation and application.
- Previous research lacked detailed molecular insights into shiitake mushroom growth stages.
Purpose of the Study:
- To investigate the molecular mechanisms of Lentinula edodes fruiting body development.
- To identify differentially expressed genes (DEGs) across early bud (EBS), intermediate (IDS), and fully developed (FDS) stages.
- To uncover candidate genes involved in key metabolic and signaling pathways during fruiting body formation.
Main Methods:
- De novo transcriptomic analysis using high-throughput Illumina RNA-sequencing.
- Generation of cDNA libraries for EBS, IDS, and FDS.
- Bioinformatic analysis including gene annotation (NCBI, GO, COGs) and pathway assignment (KEGG).
- Differential gene expression analysis between developmental stages.
Main Results:
- Generated over 112 million high-quality reads, assembled into 25,104 contigs and 15,199 unigenes.
- Identified significant numbers of differentially expressed genes (DEGs) between developmental stages (399 EBS vs. IDS, 1428 IDS vs. FDS, 1830 EBS vs. FDS).
- Highlighted genes in purine metabolism, unsaturated fatty acid metabolism, and meiosis as highly expressed or upregulated in the FDS stage.
Conclusions:
- This is the first high-throughput transcriptome study on Lentinula edodes fruiting body growth.
- Identified specific molecular pathways and candidate genes crucial for fruiting body development.
- Provides a foundation for future genetic studies and biotechnological applications of Lentinula edodes.
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