Deciphering the Biosynthetic Pathways and Regulatory Networks of the Active Components of Cibotium barometz by Transcriptomic Analysis
Yuli Zhang, Zhen Wang, Minghui Li, Ting Wang, Yingjuan Su
TL;DR
This study uses transcriptomic analysis to explore the biosynthesis and regulation of bioactive compounds in the medicinal fern Cibotium barometz.
Contribution
The paper provides the first comprehensive transcriptomic insights into the biosynthetic pathways and regulatory networks of Cibotium barometz.
Findings
Seventeen key enzymes in polysaccharide biosynthesis show tissue-specific expression patterns.
UDP-arabinose 4-epimerase (UXE) positively correlates with polysaccharide content, while PGM and UER1 negatively correlate.
Two lignin pathways (H-lignin and G-lignin) are characterized with key genes PAL, C4H, and CAD.
Abstract
Cibotium barometz (L.) J. Sm., a medicinally significant fern in traditional Chinese medicine, is little explored at the genomic level regarding its bioactive compounds. Using an integrated approach combining Illumina and PacBio sequencing technologies, we profiled its root, rachis, and pinna transcriptomes, identifying 12,718, 21,341, and 11,441 unigenes, respectively. Our analysis systematically characterized the transcriptional features of transcription factors (TFs), simple sequence repeats (SSRs), long non-coding RNAs (lncRNAs), and differentially expressed genes (DEGs). Enrichment analyses highlighted the roles of highly expressed unigenes in secondary metabolism. Seventeen key enzymes involved in polysaccharide biosynthesis showed tissue-specific expression patterns. Notably, total polysaccharide content correlated positively with UDP-arabinose 4-epimerase (UXE) expression but…
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Taxonomy
TopicsPlant Gene Expression Analysis · Fern and Epiphyte Biology · Polysaccharides and Plant Cell Walls