Related Experiment Videos
TILLING. Traditional mutagenesis meets functional genomics
Steven Henikoff1, Bradley J Till, Luca Comai
1Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA. steveh@fhcrc.org
Plant Physiology
|May 25, 2004
Summary
Targeting Induced Local Lesions in Genomes (TILLING) is a versatile reverse genetics method. It efficiently identifies point mutations for functional genomics and agricultural applications across diverse organisms.
Area of Science:
- Genetics
- Genomics
- Molecular Biology
Background:
- Most genes are sequenced, but their functions (phenotypes) remain largely unknown.
- Reverse genetics aims to link gene sequences to their functions.
- Existing reverse genetics methods have limitations in broad applicability.
Purpose of the Study:
- To provide an overview of the Targeting Induced Local Lesions in Genomes (TILLING) methodology.
- To highlight the applicability and adoption of TILLING in various biological systems.
- To introduce Ecotilling for detecting natural genetic variation.
Main Methods:
- Utilizes traditional chemical mutagenesis to induce mutations.
- Employs high-throughput screening to identify point mutations.
- Includes Ecotilling for screening natural genetic variations.
Main Results:
- TILLING is a generally applicable reverse genetics strategy.
- It does not require transgenic modifications, making it suitable for agriculture.
- Public TILLING efforts are underway in model organisms like Arabidopsis, maize, and zebrafish.
Conclusions:
- TILLING is a powerful and adaptable technology for functional genomics.
- Its non-transgenic nature broadens its utility in agricultural research.
- The methodology, originating in plants, is increasingly adopted across diverse species.