Developmental Microarray Expression Data (AtGenExpress) of plant developmental tissues, combined with LDSS sequence analysis of regulatory (8mer) motif calculations (PPDB). We took the median of triplicate measurements from AtGenExpress, then sorted the developmental series into plant tissues, with one category for seedlings (8 days old or less) and another for whole plants (older than 8 days). For each motif, we calculated the position relative to the TSS as determined experimentally (PPDB).

References (for PPDB):
http://www.ncbi.nlm.nih.gov/pubmed/17947329
http://www.ncbi.nlm.nih.gov/pubmed/17346352
References (for AtGenExpress)
http://www.ncbi.nlm.nih.gov/pubmed/15806101