My lab doesn’t work on plants, but following a request from somebody in Malcom Campbell’s lab at U of Toronto, I’ve just added the Poplar to the list of organisms supported by FIRE.
The genome data comes from http://genome.jgi-psf.org/Poptr1_1/
To analyze Poplar expression data, you’ll need to download FIRE, then download the poplar_data.zip file from http://tavazoielab.princeton.edu/FIRE/
I tested it on a clustered dataset of Poplar tissue expression profiles (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE6422), and I got very impressive results. The test expression profile is included in the EXPFILES directory in poplar_data.zip file.