Transcriptomic analysis at organ and time scale reveals gene regulatory networks controlling the sulfate starvation response of Solanum lycopersicum

17 Pág.Sulfur is a major component of biological molecules and thus an essential element for plants. Deficiency of sulfate, the main source of sulfur in soils, negatively influences plant growth and crop yield. The effect of sulfate deficiency on plants has been well characterized at the physiological, transcriptomic and metabolomic levels in Arabidopsis thaliana and a limited number of crop plants. However, we still lack a thorough understanding of the molecular mechanisms and regulatory networks underlying sulfate deficiency in most plants. In this work we analyzed the impact of sulfate starvation on the transcriptome of tomato plants to identify regulatory networks and key transcriptional regulators at a temporal and organ scale.This work was supported by grants from Millennium Institute for Integrative Biology – iBio (Iniciativa Científica Milenio – ANID to E.A.V and J.C), Fondo Nacional de Desarrollo Científico y Tecnológico FONDECYT 1170926 to E.A.V, FONDECYT 1190812 and FONDECYT 1170913 to J. C, FONDECYT 3180269 to C. H, PCI-ANID REDES180097 to E.A.V, PCI-ANID REDI170024 to J. C and J. M, The National Institute for Agriculture and Food Research and Technology (INIA) (RTA2015–00014-c02–01 to J.M), UE Prima (PCI2019–103610 to J.M). These funding agencies were not involved in the design of the study, collection, analysis, interpretation of data, and in writing the manuscript.Peer reviewe