Exploration of Drought Responding Genes in Camelina sativa

A Camelina sativa belongs to Brassicaceae family and is called as gold-of-pleasure or false flax in English. It completes a life cycle in 80-100 days and can grow well in marginal lands or requires relatively low inputs. Due to higher oil and unsaturated fatty acid contents and low freezing point of the biodiesel when manufactured from it, it has become as one of biofuel feedstocks. However those marginal lands are usually not equipped with irrigation system, drought tolerant cultivar will be a good choice. Here we report data on the expression profilings responding to drought stress in the Camelina species. From four soil water conditions (well-watered, 10, 100 kPa, and rehydration), up-regulated genes of 107, 2,989 and 982 were obtained when the species was exposed to 10, 100 kPa, and rehydrated conditions, respectively. Similarly down-regulated genes were 146, 3,659 and 1,189 for the three drought regimes compared to control (well-watered), respectively. We successfully grouped those genes responding to soil water content into up or down-regulation types. One of the highly expressed genes at 100kPa seemed to be involved in auto-regulatory senescence-inhibiting system where drought-inducing IPT expression resulted in suppression of leaf senescence, which will be subjected to see if the gene is associated with higher yielding or seed oil production.