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Updated: Jan 23, 2026
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A Bioinformatics Pipeline to Accurately and Efficiently Analyze the MicroRNA Transcriptomes in Plants
Published on: January 21, 2020
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MepmiRDB: a medicinal plant microRNA database.
Dongliang Yu1, Jiangjie Lu1,2, Weishan Shao1,2
1College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, China.
Summary
Medicinal plant microRNAs regulate plant development and metabolism. The new MepmiRDB database offers comprehensive miRNA data for 29 species, aiding research.
Area of Science:
- Plant molecular biology and bioinformatics.
Background:
- MicroRNAs (miRNAs) are key regulators of plant development and metabolism.
- Medicinal plant miRNAs modulate secondary metabolism and exhibit cross-kingdom gene regulation potential.
- Existing plant miRNA repositories lack specificity for medicinal plants.
Purpose of the Study:
- To introduce MepmiRDB, the first database specifically for medicinal plant microRNAs.
- To provide a centralized resource for miRNA sequences, expression patterns, and regulatory networks in medicinal plants.
Main Methods:
- Developed MepmiRDB, a database housing thousands of miRNA candidates from 29 medicinal plant species.
- Integrated functional modules for sequence information (mature miRNA, precursor, structure, processing signals), expression patterns (organ/condition-specific), and miRNA-target interactions.
- Implemented a search module for querying miRNAs by species, families, or sequences.
Main Results:
- MepmiRDB provides comprehensive data including mature miRNA and precursor sequences, precursor structures, and processing signals.
- Expression data covers organ/growth condition-specific patterns for mature miRNAs.
- The database includes degradome-validated miRNA-target pairs for eight plant species.
Conclusions:
- MepmiRDB is a valuable and timely resource for studying medicinal plant miRNAs.
- The database facilitates mechanistic and functional investigations into the roles of miRNAs in medicinal plants.
- All data within MepmiRDB is available for download, promoting accessibility and further research.
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