SDS PAGE for ecotypes (numbered 1 to 6) Kalati (E1), Tazehabad (E2), Fetrezamin (E3), Gavdareh (E4), Baharband (E5) and Telvar (E6). Plants were grown under watered condition (a), drought stress condition (b) and drought stressed plants treated with salicylic acid (c). Abbreviations: salicylic acid; DSA, drought stress∗salicylic acid; DSAE, drought stress∗salicylic acid∗Ecotype.