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Published on: May 11, 2020
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Tomato MicroRNAs and Their Functions
1Institute of Plant Sciences, Agricultural Research Organization-Volcani Institute, HaMaccabbim Road 68, P.O. Box 15159, Rishon LeZion 7505101, Israel.
International Journal of Molecular Sciences
|October 14, 2022
Summary
This study presents a comprehensive atlas of tomato microRNA (miRNA) genes, identifying 538 candidates. This resource details conserved, Solanaceae-specific, and tomato-specific miRNAs, aiding future research on gene regulation in tomato development.
Area of Science:
- Molecular Biology
- Plant Science
- Genomics
Background:
- MicroRNAs (miRNAs) are small non-coding RNAs regulating gene expression post-transcriptionally.
- While extensively studied in model plants like Arabidopsis and rice, tomato miRNA gene information was previously limited and fragmented.
- Tomato is a key model for fruit development, necessitating a clear understanding of its miRNA repertoire.
Purpose of the Study:
- To create an exhaustive and non-redundant atlas of tomato microRNA (MIR) genes.
- To consolidate and organize recent MIR gene annotations from multiple research groups.
- To provide a foundational resource for functional studies of tomato miRNAs.
Main Methods:
- Curating and integrating partially overlapping MIR gene annotations from various labs.
- Developing a comprehensive and non-redundant atlas of tomato MIR genes.
- Reviewing existing functional studies on tomato miRNAs.
Main Results:
- The atlas contains 538 candidate and validated tomato MIR genes.
- These genes encode 169 highly conserved, 18 Solanaceae-specific, and 351 tomato-specific miRNAs.
- A critical review of functional studies highlights validated and potential miRNA functions.
Conclusions:
- The established tomato MIR gene atlas provides a definitive resource for the plant science community.
- This atlas facilitates deeper investigation into miRNA-mediated regulation in tomato.
- It serves as a crucial foundation for future research on tomato development and crop improvement.
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