Max Planck Institute: Pod Corn is Not a Maize AncestorApril 27, 2012
Pod corn, a crop that is said to be maize's wild ancestor, is proved to be a product of mutation that results to development of leaves in the wrong places. Max Planck Institute for Plant Breeding Research and Friedrich Schriller University said that the cause of leaf generation in the cob area is a leaf gene that is usually not active there. This type of maize has bewildered scientists for years with its covered kernels. These "covers" are long membranous husks which are known as glumes. In contrary to those who believe that this is an old relative of our normal maize today, pod corn is said to be just a mutant corn.
Findings of Heinz Saedler, Günter Theißen and their team have discovered how the mysterious look of the pod corn arises and the results show that it has nothing to do with the domestication of the maize as it is today. Saedler said that from the old crossing experiments the mutation must consist of at least two genetic components that can be inherited separately. When one component is inherited, the glumes that surround the kernels in this mutant are significantly smaller and less noticeable than that of the samples with both genetic components. Thus, these results show that the two components involved are copies of the same gene which are usually together and located in chromosome four (4). The region that controls the transcription of the gene is said to be damaged according to researchers and as a result, glumes develop a leaf-like pattern and mature until the kernels are completely wrapped.
The mutated gene is proved to belong to an entire family of development control genes known as the MADS-box gene family and other representatives of this family control other developmental processes in the plant.
Read more at http://www.mpg.de/5755791/pod_corn_leaves_inflorescences .
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
- BIO: Agri-biotech, An Environmental Success Story
- IFPRI Publishes Global Food Policy Report
- African Ministers Endorse Agricultural Biotechnology
- Tunisia Strengthens Science Ties with India
- Health Professionals Support Biotech Use in Food Products
- Survey on Biotech Fruits and Nuts Studied in California
- MSU Researchers Find Out How Plants Decide to Go into Defense Mode
- CropLife America Highlights Ag Advancements on Earth Day 2012
- New Downy Mildew Resistant Cucumber
- ICRISAT and BGI to Work Together for More Productive Crops
- Philippines' Agri Dept Holds Biotech Conference for Teachers
- UK and Vietnam Turns Agricultural Waste into Biofuels
- Australian Growers to Produce Super-High Oleic Safflower
- CSIRO Develops Super Wheat to Combat Bowel Cancer
- China Implements Biological Breeding Capacity Building and Industrialization Project
- NCGC and KBCH Sign MOU for Sharing Information
- New Corn Research Institute in China
- Science and Industry Groups Team Up to Deliver Improved Crops
- New Sequencing Techniques for Fine Mapping Wheat Genes
- Scientists Find First Chemical Signal to Attract Beneficial Bacteria
- Max Planck Institute: Pod Corn is Not a Maize Ancestor
- UK's Food Industry President Calls on Europe to Rethink GM
- ISAAA BOD Member Receives Prestigious E.C. Stakman Award
- Metabolic Characteristics in Ruminants of Proteins in Hull-less Barley Varieties
- Scientists Study Ryegrass' Resistance to Glyphosate in Arkansas
- Researchers Study Coupling of Biological Clock and Cells in Plants
Beyond Crop Biotech
- Geneticists Identify Genes Associated with Neurodevelopmental Disorders
- Scientists Develop Artificial DNA
- First Description of A Triple DNA Helix in Vacuum
- Scientists Target a Gene to Stop MRSA's Virulence
- China Produces First GM Sheep
Subscribe to CBU: