From gene networks to network motif dynamics: how the presense of positive feed-back and -forward loops between PERIANTHIA, WUSCHEL-RELATED HOMEOBOX5 and GRF-INTERACTING FACTOR 1 modulates gene expression and function in the Arabidopsis roots.

We isolated QC and CEI cells and obtained their cell-type specific transcriptional profiles in a WT and in a wox5 mutant background by sorting GFP+ cells marked with pWOX5::GFP and pCYCD6::GFP. Seedlings were grown for 5 days. Cells expressing WOX5::GFP and CYCD6::GUS-GFP were collected by FACS. RNA was extracted from the collected cells.