The Role of Short Vegetative Phase-Orthologs in Herbaceous Perennial GentianMay 11, 2016
Information on regulation of vegetative phase and floral initiation in herbaceous perennial plants has been limited to a few species. To study flowering regulation in a wider range of plant species, Noriko Yamagishi and Kohei Kume of Iwate University in Japan identified and characterized SHORT VEGETATIVE PHASE (SVP)-like genes, GtSVP-L1 and GtSVP-L2, from the herbaceous perennial plant, gentian (Gentiana triflora).
Silencing the GtSVP-L1 in G. triflora seedlings resulted in early flowering and shortened vegetative phase by about one-third the period of time, without vernalization. This suggests GtSVP-L1 negatively regulates flowering and vegetative phase.
Seasonal change in GtSVP expression was also monitored in overwinter buds (OWBs) of gentian. Analysis revealed that the levels of GtSVP-L1 mRNA in OWBs increased together with the induction and/or maintenance of dormancy, then decreased toward release from dormancy, while GtSVP-L2 mRNA levels remained unchanged.
These results imply that in herbaceous perennial plants, the SVP-ortholog is concerned in activity-dormancy control, as well as in negative regulation of flowering.
For more on the study, read the article in Plant Science.
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:
News from Around the World
- Report Shows Global Trends and Forecasts on GM Food Safety Testing Market
- University Students in Uganda Debate on Biotech and Biosafety Bill
- Researchers Discover Potential New Pathway for Plant-Based Bioproducts
- Scientists Crack Complete Genome of Carrot
- Pakistan's Punjab Seed Council Holds Approval of Bt and Non-Bt Cotton Varieties
- Genome Modifications Turn Fungal Plant Pathogen into Beneficial Organism
- Scientists Explain Why Pest Has Not Evolved Resistance to Bt Maize in EU
- DEFRA Approves The Sainsbury Laboratory's Application for Potato Field Trials
- Transcriptional Response of Overexpressing Anthranilate Synthase in Rosy Periwinkle
- Abscisic Acid and Sucrose Regulate Fruit Ripening through the ASR Transcription Factor
- The Role of Short Vegetative Phase-Orthologs in Herbaceous Perennial Gentian
Beyond Crop Biotech
- Researchers Find Link between Jumping Gene and Colon Cancer
From the BICs
- UBIC Embarks on Nation-wide Biotech Radio Campaigns
- Indonesian Gov't Officers Attend Workshop on Biosafety Assessment and Release of GE Product
- Agri Technology Seminar Concluded in Tegal, Indonesia
Read the latest:
- Crop Biotech Update (August 17, 2022)
- Genome Editing Supplement (August 10, 2022)
- Gene Drive Supplement (July 27, 2022)
Subscribe to CBU: