Salinity tolerance or any abiotic stress tolarence in plants is a complex mechanism. There is a cascade of genes responsible for various activities to maintain the homeostasis. For your reference you can go through the following two papers -
Mostafa Sir really I am very happy to read from you again and I am agree with you that Na transporters is important and maybe also raffinose sugar key enzyme for synthesis is important also as it helps to imparting salinity tolerance in plants.