CRISPR-Cas9 Reveals Genes Involved in Rice Heading DateSeptember 23, 2020
Additional genes involved in the control of the heading date of rice were identified using CRISPR-Cas9 technology. The study conducted by Huazhong Agricultural University scientists is published in the Journal of Integrative Plant Biology.
The CO, CO-LIKE, and TOC1 (CCT) domain proteins are known to regulate flowering time in many plant species. However, in rice, only a few out of the 41 CCT genes were shown to regulate heading date. To identify more genes involved in this mechanism, the researchers grouped the CCT family genes according to their diurnal expression patterns.
Using CRISPR-Cas9, knockout mutants of the entire gene family were produced. Analysis showed that OsCCT22, OsCCT38, and OsCCT41 restrain heading under long‐day conditions and boost heading under short‐day conditions. OsCCT03 helps heading under both conditions and increases the expression of Heading date 1 (Hd1) and Early heading date 1 (Ehd1) genes.
With the additional genes, 18 CCT domain-containing genes involved in heading date are now known to date, providing more gene combinations for the development of rice varieties with a given heading date.
Read more findings in the Journal of Integrative Plant Biology.
You might also like:
- OsBBX14 Delays Heading Date in Rice
- PE-1 Impacts Heading Date and Chloroplast Development in Rice
- OsCOL16 Represses Flowering in Rice
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural 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:
- Research Highlights COVID-19 Impacts on Food Security in Kenya and Uganda
News from Around the World
- FAO Facilitates Agri-food Systems Transformation of Cities Worldwide
- Ugandan Farmers Want Bt Maize to Address Fall Armyworm Challenge
- 10 New Genes Identified for Resistance to Stripe Rust Disease
- Research Team Turns to Wild Crop Relatives in Climate Change Battle
- Scientists Identify New Resistance Gene to Potato Disease that Caused Irish Famine
- Bt Cotton Increased Farmers' Produce by 10-Fold in China
- E. coli Bacteria Offer a Path to Improving Photosynthesis
- Scientists Analyze Whole Genome Sequence of Water Buffalo, Cattle for Domestication Signatures
Plant Breeding Innovations
- CRISPR-Cas9 Reveals Genes Involved in Rice Heading Date
- Transgene-free PDS Mutants in Potato Generated
- TALENs Used for Genome Editing of an Algal Biodiesel Candidate
Read the latest:
- Crop Biotech Update (January 25, 2023)
- Genome Editing Supplement (January 18, 2023)
- Gene Drive Supplement (January 25, 2023)
Subscribe to CBU: