Fig. 4

Dynamics of DNase I sensitivity between temperature treatments and between tissue types for genes in different expression level categories in potato. a Comparison of DNase I sensitivity for genes with different expression levels (FPKM) between cold tubers and RT tubers. b Comparison of DNase I sensitivity for genes with different expression levels between leaves and RT tubers. Active genes were identified if they were expressed in both temperature conditions with FPKM greater than 1 or in both tissues with FPKM greater than 1. Active genes were divided into 4 groups and sorted from low expression (0–25%) to high expression (75–100%) according to their expression levels (FPKM) in each sample. Constitutively silenced genes were genes with FPKM equal to 0 in all tissues and temperature treatments. Genes were divided into 100 bins and aligned together from TSSs to TTSs. Gene flanking regions (± 1 kb) were also analyzed in 100 bins