organism: Arabidopsis thaliana
description: This sample consists of cDNA tags that query the mRNA-poly(A) junction, prepared using RNA isolated from Arabidopsis leaf tissue.  Plants were grown in a growth room in soil or hydroponically and leaf tissue harvested after 17-20 days.  cDNA was prepared and the desired tags made as described in Wu et al. (submitted).  These paired-end tags are bar-coded and mixed with other samples in the various experiments.  Wild-type leaf tags have the following codes:  5' reads begin with either CATG or ACGT, and 3' reads begin with the sequence NNNCCTTTT.  These codes can be used to extract leaf tags for analysis.