SRP220583 PRJNA564197 PRJNA563789 The transcriptomic responses of the sugar kelp Saccharina latissima to the prolonged darkness at two temperatures To investigate the survival strategy of kelps during polar night, we studied the transcriptomic responses of Saccharina latissima, one of the most common kelps in the Arctic, after a two-week dark exposure at two temperatures (0°C and 4°C) versus the same temperatures under low light conditions.