Scientists share blueprint for programmable on-off switches in plants
Khan A, Herring G, Zhu JY, Petterson M, Lister R
Crispr
The wheat in your bread and the canola oil in your pantry could one day carry precisely tunable genetic switches, thanks to a lab protocol now shared openly for researchers to replicate in just four weeks.
Researchers figured out a reliable way to build tiny genetic switches inside plant cells that can turn specific genes on or off, almost like a dimmer switch for plant traits. They tested the method across several very different plants, from a mustard relative to wheat to moss, and packaged the whole process into a step-by-step guide so other scientists can replicate it in about a month. This kind of tool could eventually help breeders engineer crops that resist disease or handle drought better, though it's still a lab technique rather than something gardeners will see soon.
Key Findings
The protocol uses CRISPR interference (CRISPRi) circuits combined with a 96-well protoplast-based dual luciferase assay for high-throughput testing
The method was validated across four plant species: Arabidopsis thaliana, Brassica napus (canola), Triticum aestivum (wheat), and the moss Physcomitrium patens
The full design-to-test workflow for building and validating a synthetic gene circuit takes approximately 4 weeks
chevron_right Technical Summary
Scientists built a detailed how-to guide for designing genetic 'circuits' that can switch plant genes on and off using CRISPR, testing the method in mustard, wheat, moss, and a common lab plant. The protocol could speed up efforts to engineer crops with new traits like disease resistance or stress tolerance.
Abstract Preview
Original paper
Designing and testing CRISPRi-based synthetic gene circuits in plants.
Synthetic gene circuits are powerful tools for precisely programming gene expression and introducing novel cellular functions. However, their development and application in plants has lagged behind...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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