Related Experiment Videos
A rapid and efficient transformation protocol for the grass Brachypodium distachyon
Pernille Christiansen1, Claus Henrik Andersen, Thomas Didion
1Risø National Laboratory, Frederiksborgvej 399, P.O. Box 49, 4000, Roskilde, Denmark. pernille.christiansen@risoe.dk
Plant Cell Reports
|October 27, 2004
Summary
A new protocol efficiently transforms Brachypodium distachyon using microprojectile bombardment, enabling faster functional genomics research in grasses. This method yields high transformation efficiencies and allows for T2 seed production within one year.
Area of Science:
- Plant Biotechnology
- Functional Genomics
- Grass Molecular Biology
Background:
- Brachypodium distachyon is a valuable model organism for grass functional genomics.
- Efficient transformation protocols are crucial for advancing research in Brachypodium distachyon.
Purpose of the Study:
- To develop a fast and efficient microprojectile bombardment-mediated transformation protocol for Brachypodium distachyon.
- To establish a system for rapid generation of transgenic seeds for functional analysis.
Main Methods:
- Embryogenic calli from immature embryos were transformed using a construct with uidA and bar genes.
- Bialaphos herbicide was used for selection throughout tissue culture.
- Microprojectile bombardment was employed for gene delivery.
Main Results:
- Achieved average transformation efficiencies of 5.3%, with up to 14% in single bombardments.
- Transgenic T1 seeds were harvested in 29 weeks (diploid) and 25 weeks (tetraploid).
- The protocol allows for T0 and T1 generation testing and T2 seed production within one year.
Conclusions:
- The developed protocol is efficient and rapid for Brachypodium distachyon transformation.
- This system accelerates functional genomics studies in grasses by enabling timely generation of transgenic lines.
- The protocol supports the use of Brachypodium distachyon as an alternative model plant to Oryza sativa.