Genome-wide analysis of Rice OsDHSRP gene family and their Expression profiles under different Abiotic Stresses

Rice serves as a principal food class globally and the crop have been gradually impeded by environmental constraints such as drought, floods, salinity, heat, and cold. Plants adapt their physiological operations in response to external stimuli via signal transduction, thereby modulates gene expression and triggers a range of cellular responses. To feed the current population expansion, it is necessary to develop crops which are able to withstand climate change is highly desirable. OsDHSRP1 is an E3-ubiquitin ligase whose expression is highly stimulated by salinity, heat, and drought conditions, and it acts as a negative modulator by boosting ROS production. The genome-wide comprehensive and expression analysis of OsDHSRP1 in rice have still not been reported. In the current research, we are providing genome wide prediction, structural, evolutionary characterization, and expression analysis of OsDHSRP gene family of Oryza under diverse abiotic stresses. A total of 15 OsDHSRP genes were discovered in Oryza genome, which contains C3HC4 zinc finger conserved domain. The elucidation of Intron/Exon and motif patterns provide structural aspects of these genes. Cis-regulatory analysis and Transcription factor prediction studies revealed their roles and interaction with genes involved in multiple abiotic variables. Expression evaluation of OsDHSRP genes by q-RT PCR revealed that OsDHSRP1 exhibited strong expression trends in leaflets during cold stress followed by drought and salt stress conditions, suggests the role of OsDHSRP1 under diverse abiotic stress circumstances in Oryza . This study provides further insights into regulation of expression of OsDHSRP genes for developing climate resilient crops.