Clustering of nucleosomal and transcriptional features (A) and an example to illustrate actively-transcribed chromosomal blocks (ACB) and inactively-transcribed chromosomal blocks (ICB) (B).
The NO signals and sequence tags from rmRNA-seq are aligned in a 100-kb window (the tag densities from high to low are scaled from red to green). Criteria about the grouping scheme (Group1 and Group2) are discussed in the main text and they are corresponding to LOG and HOG. We observed large genomic regions where NO intensity and transcriptional activity are constantly low (ICB) or high (ACB), and examples are highlighted in red boxes.