Differentially expressed genes induced by cold and UV-B in Deschampsia antarctica Desv.

摘要: Antarctica is one of the most extreme environments on Earth. Deschampsia antarctica Desv. only monocot vascular plant that colonizes Antarctic Peninsula. The survival this species in harsh environment suggests possesses genes associated with cold and UV tolerance. Using suppression subtractive hybridization, we identified a total 112 differentially expressed under irradiance conditions. Northern blot analysis real-time RT-PCR confirmed expression differences among several genes. similarity search analysis, number have not been previously reported. results showed radiation mainly induce related to transcription, energy defense response. Interestingly, part isolated corresponds unknown or hypothetical proteins. This set tolerance-related could be relevant uncover mechanisms by which extremophile survives its contribute development biotechnology species.