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Transcriptomic Profiling of Thermotolerant Sarcomyxa edulis PQ650759 Reveals the Key Genes and Pathways During Fruiting Body Formation

文献类型： 外文期刊

作者： Liu, Zitong 1 ; Li, Minglei 2 ; Ma, Hongyu 1 ; Wang, Fei 1 ; Shi, Lei 1 ; Wang, Jinhe 1 ; Sheng, Chunge 1 ; Zhang, Peng 1 ; Yu, Haiyang 1 ; Zhao, Jing 1 ; Wang, Yanfeng 1 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157000, Peoples R China

2.Northwest A&F Univ, Ctr Edible Fungi, Yangling 712100, Peoples R China

关键词： Sarcomyxa edulis; fruiting body development; transcriptome analysis

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）

ISSN：

年卷期： 2025 年 11 卷 7 期

页码：

收录情况： SCI

摘要： Sarcomyxa edulis is a characteristic low-temperature, edible mushroom in Northeast China. It has a delicious taste and rich nutritional and medicinal value. S. edulis can undergo explosive fruiting, neat fruiting, and unified harvesting, making it suitable for factory production. The molecular mechanisms underlying fruiting body development in S. edulis remain poorly understood. This study employed transcriptome analysis to compare the post-ripening mycelium (NPM) and primordial fruiting bodies (PRMs) of the thermostable S. edulis strain PQ650759, which uniquely forms primordia under constant temperature. A total of 4862 differentially expressed genes (DEGs) (|log2(fold change)| >= 1) were identified and found to be predominantly enriched in biological processes such as cell wall organization, DNA replication, and carbohydrate metabolism. KEGG pathway analysis revealed significant enrichment in 20 metabolic pathways, including mismatch repair, yeast cell cycle, and starch/sucrose metabolism. Ten candidate genes (e.g., SKP1, MRE11, GPI) linked to cell cycle regulation, DNA repair, and energy metabolism were randomly selected and prioritized for functional analysis. Quantitative PCR validation confirmed the reliability of transcriptome data, with expression trends consistent across both methods. Our findings provide critical insights into the molecular regulation of fruiting body development in S. edulis and establish a foundation for future mechanistic studies and strain optimization in industrial cultivation.

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