New Evidence on Vernalization Has Been FoundFebruary 20, 2019
Vernalization is the process by which plants require prolonged exposure to cold temperature before they transition from the vegetative state to flower. The study began as an exploration into how variance in ambient temperatures might influence flowering regulation in winter wheat. But it unexpectedly uncovered an "extreme vernalization response". Before the study, it was thought that vernalization only happened up to a maximum of about 12°C. The researchers found that the true temperature was much higher.
The researchers exposed a panel of 98 wheat cultivars and landraces and to temperatures ranging from 13 to 25°C in controlled environments. Normally, when vernalization is complete, plant growth is accelerated under warm temperatures. However, one cultivar, named Charger, did not follow this standard response. Gene expression analysis showed that the wheat floral activator gene (VRN-A1) was responsible for this trait. Further experiments showed that expression of genes that delay flowering is reactivated during high temperatures of up to 24 °C, showing that vernalization is not only a consequence of how long the plant experiences continuous cold.
For more details, read the press release from JIC.
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
- Hunger in Africa Continues to Rise, UN Report Reveals
- New Biotech Cotton Event Approved in Argentina
- Epigenetics Research Could Lead to More Resilient Crops
- ERS Publishes Report on Development, Adoption, and Management of Drought Tolerant Corn in the United States
- Battle to Save the US Citrus Industry Hinges on Consumer Acceptance of GM Food
- SEARCA BIC Policy Brief Highlights Global Scientific Consensus on the Safety of GMO Technology
- New Evidence on Vernalization Has Been Found
- Wageningen Economic Research Conducts Comparative Analysis of Global Agricultural Policies for the EU
- Overexpression of OsFTL10 Induces Early Flowering Improves Drought Tolerance in Rice
- Co-expression of Soybean Genes Leads to Improved Folate Content in Maize and Wheat
Plant Breeding Innovations
- CRISPR-Cas9 Mutations in a Rice Gene Changes Starch Biosynthesis in the Endosperm
- Transgene-Free Genome Editing in Tomato and Potato Plants Using CRISPR-Cas9 Cytidine Base Editor
- Global Congress on Biotechnology
- Gene Editing: A Potential GameChanger for Crop Agriculture
- ISAAA in 2018: Accomplishment Report
Subscribe to CBU: