Quantitative PCR analysis of dynamic expression of PtoWOXs in the regeneration of AS and AR. (A) Dynamic changes of PtoWOXs in AS regeneration. The expression of PtoWUSa, PtoWOX4a, 4b, 5a, and 5b is significantly changed. B1–B6 are six chronological stages during AS regeneration. (B) Dynamic changes of PtoWOXs in AR regeneration. PtoWOX5a, 5b, 11/12a, and 11/12b are significantly changed. R1–R4 are four chronological stages during AR regeneration. Insignificant differences, according to LSD test (P < 0.01), are denoted using the same letters. Error bars represent standard deviation.