Scientists Conclude Origin of RiceMay 6, 2011
A team of researchers from different universities has finally concluded that rice originated from China after tracing back thousands of years of evolution through extensive gene re-sequencing. As published in the latest issue of the Proceedings of the National Academy of Sciences (PNAS), New York University biologist Michael Purugganan and colleagues found that domesticated rice may have first appeared about 9,000 years ago in Yangtze Valley, China. Aside from reassessment of evolutionary history and re-sequencing of gene fragments, the researchers also used "molecular clock" of rice genes to elucidate when rice evolved. They pinpointed the origin of rice (Oryza sativa) at possibly 8,200 years ago, while japonica and indica split apart from each other about 3,900 years ago. This is consistent with the results of previous archaeological studies.
"This study is a good example of the new insights that can be gained from combining genomics, informatics and modeling," says Barbara A. Schaal, Professor of Biology at Washington University in St. Louis, who is also a co-author of the study. "Rice has a complicated evolutionary history with humans and has accompanied them as they moved throughout Asia. This work begins to reveal the genetic consequences of that movement."
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
- Global Initiative for Food and Ag Policy
- Need to Address Issues Regarding Benefit Sharing in ITPGRFA
- Restoration Seed Banks Proposed
- Seed Conditioning Facility in South Africa
- Soybean and Sunflower in Ethiopia?
- Biotech Crops in South Africa
- Atlantic Food Summit Panel Highlights Biotechnology
- Delivering Nutritionally Enhanced Sorghum to Africa
- Formidable Fungal Force Counters Biofuel Plant Pathogens
- Improving Wheat and Durum Varieties for Western Canadian Farmers
- One Corn Gene Provides Resistance to Multiple Diseases
- Selaginella Genome Sequence Maybe Key to Plant Evolutionary Puzzle
- Scientists Conclude Origin of Rice
- Plants Duplicate Chromosomes to Adapt
- ISAAA Publishes "Bt Cotton in India: A Multipurpose Crop"
- China Launches Agri-Science and Technology Program
- CAU-Purdue Research Collaboration Forged
- Filipino Farmers and Key Stakeholders Participate in Biotech Communication Workshop
- Filipino Farmers Ratify Resolution Supporting Bt Eggplant Trials
- INRA's Metaprogrammes for Global Agronomic Research
- QTL Mapping for Resistance to 1st and 2nd Generation of European Corn Borer
- Transgenic Production of Arachidonic Acid in Oilseeds
- Distribution of Genes Controlling Fruit Shape in the Tomato Germplasm and the Relationship to Fruit Shape Diversity
Beyond Crop Biotech
- GM Mosquitoes to Combat Malaria
- Japanese Scientists Engineer Retina
- France – Annual Conference of the National Federation of Farmers
- International Conference on Agricultural, Biosystems, Biotechnology and Biological Engineering
- PBS Publication on Biosafety
Read the latest:
- Crop Biotech Update (December 7, 2022)
- Genome Editing Supplement (December 7, 2022)
- Gene Drive Supplement (December 1, 2022)
Subscribe to CBU: