Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-23172-2
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Funding
- National Key Research and Development Program of China [2017YFD0601002]
- National Key R&D Program of China [2020YFD1000300]
- China Agriculture Research System [CARS-20]
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In this study, the developmental transcriptomes of Sarcomyxa edulis were analyzed to uncover the molecular mechanisms underlying lignocellulose degradation. A co-expression network analysis revealed gene modules significantly associated with lignocellulose degradation, and key genes and transcription factor families involved in this process were identified. These findings provide important insights into the molecular genetic mechanisms of lignocellulose degradation in S. edulis.
The developmental transcriptomes of Sarcomyxa edulis were assessed to explore the molecular mechanisms underlying lignocellulose degradation. Six stages were analyzed, spanning the entire developmental process: growth of mycelium until occupying half the bag (B1), mycelium under low-temperature stimulation after occupying the entire bag (B2), appearance of mycelium in primordia (B3), primordia (B4), mycelium at the harvest stage (B5), and mature fruiting body (B6). Samples from all six developmental stages were used for transcriptome sequencing, with three biological replicates for all experiments. A co-expression network of weighted genes associated with extracellular enzyme physiological traits was constructed using weighted gene co-expression network analysis (WGCNA). We obtained 19 gene co-expression modules significantly associated with lignocellulose degradation. In addition, 12 key genes and 8 kinds of TF families involved in lignocellulose degradation pathways were discovered from the four modules that exhibited the highest correlation with the target traits. These results provide new insights that advance our understanding of the molecular genetic mechanisms of lignocellulose degradation in S. edulis to facilitate its utilization by the edible mushroom industry.
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