Brachypodium distachyon and Setaria viridis: Model Genetic Systems for the Grasses

The family of grasses encompasses the world’s most important food, feed, and bioenergy crops, yet we are only now beginning to develop the genetic resources to explore the diversity of form and function that underlies economically important traits. Two emerging model systems, Brachypodium distachyon and Setaria viridis, promise to greatly accelerate the process of gene discovery in the grasses and to serve as bridges in the exploration of panicoid and pooid grasses, arguably two of the most important clades of plants from a food security perspective. We provide both a historical view of the development of plant model systems and highlight several recent reports that are providing these developing communities with the tools for gene discovery and pathway engineering.

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