Related Experiment Video
Updated: Aug 9, 2026
08:48
Peptide-derived Method to Transport Genes and Proteins Across Cellular and Organellar Barriers in Plants
Published on: December 16, 2016
Prospects for using genetic transformation for improved SIT and new biocontrol methods
1Center for Medical, Agricultural, and Veterinary Entomology, Agricultural Research Service, US Department of Agriculture, Gainesville, FL 32608, USA. handler@nersp.nerdc.ufl.edu
Genetica
|December 18, 2002
Summary
Genetic engineering in insects enables improved biological control. Transposon-based systems allow for creating transgenic insect strains for methods like sterile insect technique, enhancing pest management strategies.
Area of Science:
- Entomology
- Molecular Biology
- Genetic Engineering
Background:
- Genetic manipulation of non-drosophilid insects is achievable through recombinant DNA constructs and transposon-based vector systems.
- Existing biological control methods can be enhanced, and new efficient strategies developed using this technology.
- Transgenic insect strains offer potential for advanced pest management tools.
Purpose of the Study:
- To explore the application of genetic engineering for improving insect biological control.
- To detail the use of transposon-based vectors for creating transgenic insect strains.
- To discuss the development of genetic sexing systems for sterile insect technique (SIT) programs.
Main Methods:
- Utilizing transposon-based vector systems for integrating recombinant DNA into insect genomes.
- Employing conditional gene expression systems (e.g., GAL4, Tet-off, Tet-on) for regulated gene function.
- Incorporating fluorescent protein markers for insect detection and genetic sexing systems for operational efficiency.
Main Results:
- Transgenic strains can be developed with features like fluorescent markers for tracking released insects.
- Conditional expression systems can be designed for male sterility and female lethality, facilitating genetic sexing.
- Systems modeled on Drosophila show promise for transferability to other insect species.
Conclusions:
- Transposon-mediated genetic engineering provides a powerful toolkit for advancing insect biological control.
- Conditional gene expression and genetic sexing systems are crucial for developing effective transgenic pest management strategies.
- Further research is essential for optimizing transformation, vector stability, and conducting risk assessments for field applications.
More Related Videos
Related Concept Videos
01:59Plant Breeding and Biotechnology
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
01:33Bacterial Transformation
In 1928, bacteriologist Frederick Griffith worked on a vaccine for pneumonia, which is caused by Streptococcus pneumoniae bacteria. Griffith studied two pneumonia strains in mice: one pathogenic and one non-pathogenic. Only the pathogenic strain killed host mice.Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
02:50Transgenic Plants
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
01:26Transformation
Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...
01:22Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
01:18Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...