Molecular Cloning and Characterization of a Cytokinin Dehydrogenase Gene from Upland Cotton
May 20, 2011| |
Cytokinins are plant hormones that function in plant growth and development. Cytokinin dehydrogenease, known as the main negative regulator in cytokinin metabolism of plants, irreversibly degrades cytokinins into adenine/adenosine moiety. Qi-wei Zeng, researcher at Southwest University, China, and colleagues cloned a CKX homologous gene (GhCKX) from upland cotton. The transgenic tobacco plants over-expressing GhCKX exhibited a typical cytokinin-deficient phenotype, while the plants with silenced CKX showed over-producing phenotype.
Reduction in cytokinin led to a significant decrease in fiber initials on a single ovule. Results of the study indicate that GhCKX codes for a functional CKX, and cytokinins could be necessary in the initiation of cotton fiber cells.
The paper published at the Plant Molecular Biology Reporter is available at http://www.springerlink.com/content/64576658gj726184/.
| |
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
- New Tools for Weighing Pros and Cons of Bioenergy
- Agricultural Experts Push for a Strong Seed Sector in West Africa
- Agri-business Consultant Tackles Benefits of GM Crops in Ghana
- Rice Development Training Program for Africa
- Hard Work, Dedication Pay Off as Next Generation of Corn Products Enters the Market
- Mitigating Non-Compliance in Bt Corn Farmers
- Molecular Technique Advances Soybean Rust Resistance Research
- Micro RNA's Role in Stem Cell Determination
- Scientists Study Mummy Berry Disease of Blueberry
- Filipino Farmers from Isabela Grateful for Understanding the Science of Bt Eggplant
- MONRE to Strategize Climate Change Projects in Vietnam
- Philippine Conference Participants Declare Support to Biotechnology
- EU Should Speed Up Authorization Process for GM Animal Feed
- Genetically Modified Crops Can Be Sustainable
- Nottingham Scientists Reveal Genetic ‘Wiring' of Seeds
-
Research Highlights
- Inheritance of Resistance to Cry1Ac Toxin in Cotton Bollworm from India
- Characterization of a Novel Annexin Gene from Cotton and Antioxidative Role of its Recombinant Protein
- Molecular Cloning and Characterization of a Cytokinin Dehydrogenase Gene from Upland Cotton
-
Beyond Crop Biotech
- Geneticist Removes Bee Genomes from Colonies to Study Pathogens
- Cells May Stray from 'Central Dogma'
-
Announcements
- US GC and US Soybean Export Council to Host International Agricultural Biotech Events in Beijing
- New Opportunity for Postgraduate Students at CropWorld Global 2011
- Danford Center's Symposium: Plant Genomes to Phenomes
- GM Food Conference in Jordan
- GM Conferences in Egypt
- Coexistence 2.0: Achieving Coexistence of Biotech, Conventional & Organic Foods in the Marketplace
-
Resources
- New Plant Breeding Techniques: State-of-the-art and Prospects for Commercial Development
-
Read the latest: - Biotech Updates (October 2, 2024)
- Gene Editing Supplement (September 26, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet