Marker Free GM Soybean Produced by Gene Excision
September 7, 2007| |
Marker genes, usually for antibiotic resistance, have always been the focus of criticisms in genetic improvement of crops. Various selectable marker genes are used in plant transformation systems to select transgenic events, but often the marker gene is no longer needed after the transgenic plants are regenerated. A group of researchers from DuPont recently produced marker-gene-free glyphosate-tolerant transgenic soybean lines through a self –activating gene excision system.
Unlike other approaches to produce marker-free plants, the gene excision system employed by the researchers delivers precise outcomes and does not require additional manipulations of the transformation and regeneration process. The glyphosate tolerance and marker genes were introduced together with a gene coding for the enzyme, Cre recombinase, which will instantly remove itself and the marker gene upon induction. This self-activating gene excision strategy is currently being applied to numerous plants like maize, cotton, peanut, and many coniferous trees.
The full paper is available at http://www.springerlink.com/content/m5725xk427115102/fulltext.pdf Non subscribers can read the abstract at http://www.springerlink.com/content/m5725xk427115102/?p=baabe18c455f40d38cfe38220db07408&pi=0
| |
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
- Soybean Growers Alliance Formed
- Insights from Grain Fungus' Gene Sequence
- Culprit in Decline of Honeybee Population Identified
- Mozambique and USDA Align to Fight Cassava Root Rot Disease
- Egypt NBC and Parliament Visit Bt Maize Trials
- Argentina Approves First Stacked Transgenic Corn Variety
- Hold Your Breath: The Longest Maize Ears in the World
- USDA to Advance Tree Genomics and Breeding of Conifers
- US Regulation of Biotech Crops to be Revised
- Dow AgroSciences and Exelixis Announce Research Collaboration
- Sweet Sorghum Processing for Bioethanol Made Easy
- Iowa State and Monsanto Resolve Soybean Patent Dispute
- Cheap and Effective Technique to Detect Herbicide-Resistance
- Philippines Awaits Golden Rice Release in 2011
- Sugarcane Areas in Phils to Expand for Bioethanol Production
- Indian Farmers Willing to Pay More for Bt Eggplant Hybrids than for Conventional Seeds
- Need for Food Safety Commission for GMs in Indonesia
- NSW Farmers Urge Government to End GM Moratorium
- CORRA Holds 11th Annual Meeting in Vietnam
- Swiss Authorities Allow GM Wheat Field Trials
-
Research Highlights
- Alleviating Peanut Allergy Using RNAi
- Cleistogamy Allele for Gene Containment in GM Rice
- Marker Free GM Soybean Produced by Gene Excision
- Maize Endosperm Proteins Associated with Aflatoxin Resistance
-
Announcements
- GMF Conference in Jordan
- Translational Seed Biology Symposium
-
Resources
- Pocket K on Kenya Biotech Devt Policy Highlights
-
Read the latest: - Biotech Updates (April 30, 2025)
- Gene Editing Supplement (April 30, 2025)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet