Identification of target genes in nitrogen conditions in rice and Arabidopsis

OBERTELLO, MARIANA; GRAVANO, AGUSTIN; MUSCHIETTI, JORGE

Congreso; Reunion Conjunta de Sociedades de Biociencias; 2017

Plants are sessile and therefore they are forced to adapt to environments with different stress such as cold, salinity, heavy metals, drought and nutrient deficiency essential for their growth and development. The genes that are induced in these adverse conditions not only protect the cells by producing metabolic proteins but also regulating the expression of other "master" genes, transcription factors, in response to these stresses.A MYB-like transcription factor (TF) family known as hypersensitive to low Pi-elicited primary root shortening 1, has seven members which, two of those were recently described to be involved in nitrogen and/or phosphorous regulation. Interestly, four members of these TF family were found to be involved in mediated nitrogen regulation when plants were treated for two hours with nitrate and ammonium. In these work we analysed the potential share targets under nitrogen conditions of these nitrogen regulated members in Arabidopsis thaliana and Oryza sativa. We also predicted a conserved motif sequence by statistical analysis of their targets genes through bioinformatic studies. These results will allow us to understand the regulatory mechanisms of nitrogen assimilation in these two model species.