FIGURE 2.
Relative expression level of NAC57 gene in P. alba × P. glandulosa. (A) Relative expression levels of NAC57 gene in leaves of P. alba × P. glandulosa under salt stress for 0–48 h; (B) Relative expression levels of NAC57 gene in different tissues of P. alba × P. glandulosa. Mean values and deviations were calculated from three independent biological experiments.