Background: Salinity is one of the major abiotic stresses that limit the production and yields of agricultural crops worldwide.
Objectives: In order to identify key barley genes under salinity stress, the available metadata were examined by two methods of Cytoscape and R software. Next, the hub expression of the selected gene was evaluated under different salinity stress treatments and finally, this gene was cloned into cloning and expression vector and recombinant plasmid was made.