 Cryptic genetic variation, CGV, is the hidden genetic variation that can be unlocked by perturbing normal conditions. Here we investigated the transcriptional architecture of CGV in response to rapid temperature changes in the nematode kinohub ditus elegans. We analyzed regulatory variation in gene expression across the course of a heat stress and recovery response. This article was offered by Basten L. Snoke, Mark G. Sturkin, Role P. J. Beavis and others.