OsMADS1 Represses microRNA172 to Regulate the Elongation of Palea and Lemma Development in Rice
December 21, 2016 |
OsMADS1 specifies thedetermination of spikelet meristem and lemma/palea identity in rice. However,the pathway through which OsMADS1 regulates floral organs remains elusive. Researchers from the Chinese Academy of Agricultural Sciences recently identified the microRNA172 (miR172) family, which could be possible downstream regulators of OsMADS1.
Analysis revealed that overexpression of each miR172 gene resulted in elongated lemma and palea and indeterminacy of the floret. Meanwhile,overexpression of miR172's target APETALA2 (AP2) genes resulted in shortened palea and lemma. Further analysis revealed that expression levels of miR172 were greatly influenced by OsMADS1. Furthermore, overexpressionof AP2 genes rescued the elongation and inconsistent development of the lemma/palea in OsMADS1-RNAi transgenic plants.
These data suggest that OsMADS1 and miR172s/AP2s form a regulatory network involved in regulating the elongation of the lemma and the palea in rice grains.
For more on this study, read the article in Frontiers in Plant Science.
|
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
-
See more articles:
-
News from Around the World
- Report Tackles Role of Biotech Crops in Soil Conservation
- Women MPs Call for Passing on National Biotech and Biosafety Law
- Study Reveals Plant Response to Heat Stress Fluctuates Between Day and Night
- Argentina Approves Commercial Planting of Syngenta GM Corn
- US FDA Approves GE Pink Pineapple
- Australia's OGTR Authorizes Field Trials of GM Banana
- Research Shows Wheat Yields Could Increase by 20% with New Chemical Technology
-
Research Highlights
- OsMADS1 Represses microRNA172 to Regulate the Elongation of Palea and Lemma Development in Rice
-
Beyond Crop Biotech
- Whitefly Genome Reveals Why It is a Formidable Threat to Food Security
- Overexpression of AtWRI1 and Hemoglobin Genes Increase Seed Oil Content in Field Cress
-
Announcements
- Plant Genome Editing & Genome Engineering
-
Resources
- Biotech Conversations: Real Farmers from Around the World Talk About Biotech
- New ISAAA Video Presents Potential Benefits from Adopting GM Crops
- Articles on Socio-economic Considerations in Biotech Regulation
-
Plant
- The Application of CRISPR in Dendrobium Orchids
-
Read the latest: - Biotech Updates (October 30, 2024)
- Gene Editing Supplement (October 30, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet