Vietnamese Scientists Develop Carotenoid-rich MaizeSeptember 19, 2018
Gene Orange (Or) plays an important role in the accumulation of carotenoid and participates in the non-pigmented plastidation of chromosomes. It does not interfere with the carotenoid synthesis, but regulates the process of reservoirs for the isolation and storage of carotenoids. Or gene expression increased carotenoid accumulation in the scar tissue of rice and sweet potato. Applying gene technology to express the carotenoid accumulation gene is an important way to improve carotenoid content, increase the nutritional value of maize, contribute to human health and effective in breeding.
The research team of Vietnam Academy of Science and Technology has isolated the Or gene from the Hoang Long sweet potato variety (IbOr) (code KX792094.1) and the Or gene from cauliflower (code KX396544.1). The team also designed two expression structures carrying the IbOr gene to enhance carotenoid accumulation: pCambia2300/Ubi/IbOr/Nos and pCambia2300/Glo1/IbOr/Nos.
The pCambia2300/Glo1/IbOr/Nos construct was successfully transferred into several maize lines and developed 18 transgenic lines with a total carotenoid content increase from 1.756 to 12.515 times, respectively, and β-carotene increased from 2,022 to 19,002 times. Of these, six lines had β-carotene levels more than 10 times.
For more information, read the article from the Institute of Agricultural Science for Southern Viet Nam.
The Crop Biotech Update is a weekly newsletter of ISAAA, a non-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:
News from Around the World
- UN: Global Hunger Continues to Rise
- Kenyan Scientists Concerned Perceptions on GMOs May Slow Down GM Crops Commercialization
- Researchers to Improve Iron Toxicity Tolerance and Yield of Rice in Africa
- Burkina Faso Farmers Call for Return of Bt Cotton
- Scientists Crack A Code that Could Help Nourish the World
- How Plants Signal Danger Long Distances
- International Team Delivers Intermediate Wheatgrass Reference Genome
- Australian OGTR Invites Comments on GM Canola Field Trial
- John Innes Centre Leads Group's Call for Clarity after EU Ruling on Gene-Edited Crops
- Vietnamese Scientists Develop Carotenoid-rich Maize
- Candidate Genes Related to Drought Stress Identified in Cotton
Plant Breeding Innovations
- CRISPR-Cas9 Reveals New Findings on miRNAs in Rice
- Bacterial Speck Resistance Developed in Tomato Using CRISPR-Cas9
- Rice Plant Architecture Engineered Using CRISPR-Cas9
- Scientists Develop Modified CRISPR-Cas9 System for Tetraploid Potato
Beyond Crop Biotech
- Researchers Use CRISPR Technology to Treat Beta Thalassemia Patients
- Thousands of Breast Cancer Gene Versions Classified Using CRISPR-Cas9
- Scientists Engineer Powerful Weapon Against Antibiotic-Resistant Bacteria
From the BICs
- ISAAA Report on Biotech Crop Adoption Presented to Multiple Stakeholders in Japan
Subscribe to CBU: