Brassica juncea cv. Varuna seeds were germinated on half strength Murashige and Skoog (MS) medium in Magenta boxes (Magenta vessel Corp., United States) at 24 ± 2°C under cool white florescent light (90–150 μmol photons/m2s) in a 16/8 h (light/dark) photoperiod (Murashige and Skoog, 1962). BjNPR1 transgenic plants were generated through Agrobacterium mediated co-cultivation method according to protocol with some modifications (Sharma et al., 2009). Seeds obtained from T0 transformed B. juncea plants were primary screened on kanamycin selection medium and then transferred into pots for further analysis.
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