OsCOL16 Represses Flowering in RiceApril 26, 2017
Flowering time is an important agronomic trait which significantly affects yield potential for cereal crops. The CONSTANS (CO)-like gene family plays roles in the regulation of flowering time. CO-like proteins are divided into four phylogenetic groups in rice. While several genes from groups I, III, and IV have been characterized, little is known about the genes in group II in rice.
Weixun Wu, together with researchers from China National Rice Research Institute and the Chinese Academy of Agricultural Sciences, performed functional characterization of the constitutive floral inhibitor, OsCOL16 in rice. The gene encodes a group-II CO-like protein that delays flowering time and increases plant height and grain yield.
Overexpression of OsCOL16 resulted in late heading in both long-day and short-day conditions. The team also found that OsCOL16 upregulates the expression of the floral repressor Grain number plant height and heading date 7 (Ghd7), leading to downregulation of the expression of Early heading date 1, Heading date 3a, and RICE FLOWERING LOCUS T1, leading to late flowering.
Analyses revealed that OsCOL16 plays an important role in regulating rice photoperiodic flowering, allowing the rice plant to adapt to its environment.
For more on this study, read the article 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
- Updates on GM Crop Field Trials in Malawi
- African Women in Biosciences Call for Supportive Policies on Biotechnology
- FDA Extends Comment Period for Gene-edited Plants
- Research Team Identifies Genetic Target for Growing Hardier Plants Under Stress
- Gene that Influences Grain Yield Discovered
- High-yielding Biotech Seeds to Help Filipino Farmers to Export Corn
- Most Accurate and Complete Wheat Genome to Date Has Been Released
- OsCOL16 Represses Flowering in Rice
- Scientists Investigate Metabolic Changes in Genetic Modification of Resveratrol-enriched Rice
Beyond Crop Biotech
- New CRISPR Tool May Help Prevent Worst Genetic Diseases
- Researchers Release Genome Sequence of Green Microalga
- Online Course on Plant Breeding for Drought Tolerance
- The Regulatory Implications of New Breeding Technologies
- Targeted Mutagenesis in Cotton using CRISPR-Cas9
- CRISPR-Cas9 Genome Editing in Polyploid Oilseed Rape
Read the latest:
- Biotech Updates (May 24, 2023)
- Gene Editing Supplement (May 24, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: