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Ectopic expression of NaLHY and NaZTL in A. thaliana. Arabidopsis transgenic plants harboring 35S:NaLHY and 35S:NaZTL constructs are shown at seedling (A, B) and flowering (C) stages. Mean (± SE) values of hypocotyl lengths in wild-type Col-0 (n=11), 35S:NaLHY-2 (n=12), 35S:NaLHY-3 (n=11), 35S:NaZTL-1 (n=13), and 35S:NaZTL-2 (n=13). Different letters (a and b) reflect significant differences among the lines (P<0.05, one-way ANOVA with Fisher’s post hoc test). (C) The percentage of flowering plants and number of rosette leaves of Col-0 (n=16), 35S:NaLHY-2 (n=32), 35S:NaLHY-3 (n=31), and 35S:NaZTL-1 (n=32), 35S:NaZTL-2 (n=30) when inflorescence elongation started.