HSFA1a controls plant heat stress response through its action on the 3D chromatin reorganization of enhancer-promoter interactions [Capture Hi-C]. HSFA1a controls plant heat stress response through its action on the 3D chromatin reorganization of enhancer-promoter interactions [Capture Hi-C]

We investigated the role of HSFA1a, a master regulator of heat stress response, in this reorganization through promotion of the formation of promoter/enhancer chromatin loops. To determine whether distal REs come into contact with promoters, instead of using a classical Hi-C, we further combined Hi-C with a capture enrichment step. We generated a biotinylated RNA bait library specifically targeting 212,735 promoter regions and performed a capture Hi-C after 0h, 1h and 6h after stress. Overall design: Comparative interaction profiling analysis of Capture Hi-C data for tomato M82 wild type after 0h, 1h and 6h of heat stress. 2 biological replicates for each time point.