Temperature affects all stages of plant growth and development. Even a small increase in ambient temperature can have a substantial impact on plant productivity. At seedling stage, the length of the hypocotyl is dependent on the growth temperature and provides a nice biological readout of thermal response. Higher temperatures typically increase the expression of genes involved in auxin biosynthesis and a subsequent increase in auxin results in long hypocotyls. Chromatin remodelling involving H2A.Z nucleosomal dynamics has been implicated in thermal response. We have previously shown that histone deacetylation is essential for this temperature-induced hycotyl elongation and mutations in POWERDRESS (PWR) leads to attenuated response to higher temperatures (Tasset et al, PLoS Genetics, 2018). We have also suggested based on the comparison of transcriptomes that the two distinct processes viz., histone deacetylation and H2A.Z nucleosomal dynamics may be interconnected. Subsequently it has been shown that HDA9 induced deacetylation influences H2A.Z eviction in response to temperature (van Zanten et al, PNAS, 2019). My group has carried out a genetic suppressor screen in pwr background for mutants in which the thermal sensitivity is restored. Using a fast-forward approach, which we term as "Get Your Gene Instantly (GyGi), we have identified the underlying mutations in a variety of genetic suppressors that encode genes that act at the levels of thermal perception, chromatin remodelling/transcription and translation. I will present our latest unpublished findings and the progress on this genetic approach for factors that govern thermal response in plants.