Triple-gene Transgenic Cotton Exhibits Tolerance Against Insects, Herbicide
November 9, 2022| |
A group of scientists from Pakistan and China developed a cotton variety with Cry1Ac and Cry2Ab Bt toxin genes that, under field conditions, was found to be effective against cotton bollworms, armyworms, and pink bollworms. It also contained the ESPS gene for herbicide tolerance.
Prior to the field trials that were conducted Tando Jam, Pakistan during Kharif seasons of 2019-2020 and 2020-2021, the transgenic cotton variety underwent molecular analysis to confirm the presence of the three genes, bioassay tests to prove its resistance against the three insect pests, glyphosate assay for herbicide tolerance, and plant characterization to identify the best-performing transgenic cotton line. The successful line was named NIBGE 20-01 and it showed mortality of more than 90% against the three insect pests. Succeeding tests exhibited the stability of all three genes, and these were inherited by the next generation after being planted under glasshouse and field conditions.
The scientists were prompted to develop the transgenic cotton due to the developing resistance of the pink bollworm against Cry1Ac. They designed the triple gene construct using a strategy where all three genes are cloned in the same T-DNA, followed by successful cotton transformation via Agrobacterium-mediated transformation, as these will be helpful for breeders for introgression in elite cultivars.
More details can be found in Scientific Reports.
| |
You might also like:
- Cotton Gene Editing Project to Help Reduce Infestations and Pesticide Use
- 92% Cotton, 90% Corn Areas in the US Produced with GE Seeds
- Biotech Cotton Planted in 15 Countries in 2018
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
- IAEA and FAO Send Seeds to Space
- PH Nat’l Biotech Week Webinar Highlights More Filipino Biotech Innovations
- EFSA Publishes Scientific Opinion for Market Release of GM Oilseed Rape GT73
- Scientists Discover How Plants Grow Away from Salt
-
Research Highlights
- Triple-gene Transgenic Cotton Exhibits Tolerance Against Insects, Herbicide
- Foxtail Millet Protein Confers Tolerance to Low Nitrogen Stress in Rice
- Genetically Engineered Duckweed As Potential Biofuel Source
- University of Punjab Researchers Develop Healthier Potatoes
-
Read the latest: - Biotech Updates (October 2, 2024)
- Gene Editing Supplement (September 26, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet