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Figure 2


Fig. 2. Role of targeted AUX1 expression in lateral root formation. (A) Root tip of a GAL4-GFP-expressing line (J0951) used for targeted expression of AUX1 to the lateral root cap and epidermis. Arrowheads mark the end of the root cap. (B,C) Analysis of lateral root initiation and positioning in wild type (Col-0), aux1-22, both parental lines (UAS:AUX1,aux1-22 and J0951,aux1-22), and transactivation line (J0951>>AUX1,aux1-22). (B) Lateral root density (seedlings grown at 45°). *, statistically significant differences for values compared with wild type as determined by Student's t-test (P<0.001). (C) Quantification of left-right alternation of lateral roots in vertically grown seedlings. *, statistically significant difference for right side values compared with wild type as determined by Student's t-test (P<0.001). Error bars, s.e.m.