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Fig. 1 | BMC Plant Biology

Fig. 1

From: High-resolution Hi-C maps highlight multiscale chromatin architecture reorganization during cold stress in Brachypodium distachyon

Fig. 1

Comparison of chromatin interaction profiles between normal and cold-treated Bd21. A Multiresolution Hi-C contact heatmaps for normal and cold-treated Bd21. Normalized Hi-C matrices were constructed at resolutions of 50 kb, 20 kb, and 5 kb. B Hi-C heatmaps of relative contact differences between normal and cold-treated Bd21. The relative difference is calculated as the log2 ratios of the Hi-C matrices of the cold-treated and normal samples. In the heatmap, Hi-C interactions that become stronger under cold conditions compared with normal conditions are in white to red, whereas Hi-C interactions that become weaker under cold conditions compared with normal conditions are in white to blue. Hi-C interactions that do not change under cold compared with normal conditions are in white. C Boxplots of CHESS z-scores for genomic windows with and without genes differentially expressed between cold-treated and normal Bd21. Low values indicate greater differences in chromatin conformation. The Wilcoxon test was used to analyse statistical significance. ‘**’ represents a P value < 0.01. D Hi-C heatmaps and RNA-seq tracks surrounding the Bradi1g60490 (COR27) locus (grey region). E Boxplots of changes in relative contact frequencies between gene promoters and their distal regions under cold stress

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