Extended Data Fig. 1: Role of auxin transport in floral arrest. | Nature Plants

Extended Data Fig. 1: Role of auxin transport in floral arrest.

From: Auxin export from proximal fruits drives arrest in temporally competent inflorescences

Extended Data Fig. 1

a, Weight in milligrams of 5 fertile (Ler) or sterile (ms1-1) fruits harvested at six days post anthesis. The upper and lower confines of the box indicate the interquartile range, the central line indicates the median, and the whiskers represent the maximum and minimum values. Bars with the same letter are not statistically different from each other (two-tailed T-test, p < 0.001). b, Temporal production of flowers by the PI of male-sterile ams plants upon application of either 5 mg/g NAA in lanolin, or a mock treatment consisting of lanolin and DMSO, to the de-fruited pedicels of the top 10 fruit in ams at 23 dpa; any further fruit which were produced were also treated in the same manner. n = 12 biologically independent samples, bars indicate s.e.m. Asterisks indicate significance. c, Effect of the auxin transport mutants pin3-3 pin4-3 pin7-1 (pin347), aux1 lax1 lax2 lax3 (aux1 lax123) and smxl6-4 smxl7-1 smxl8-1 (smxl678) on primary inflorescence (PI) duration, relative to Col-0 wild-type. n = 9-12 (Col-0 n = 9, pin347 n = 10, aux1 lax123 n = 12, smxl678 n = 11). The upper and lower confines of the box indicate the interquartile range, the central line indicates the median, and the whiskers represent the maximum and minimum values. Bars with the same letter are not statistically different from each other (ANOVA, Tukey HSD test). d, Effect of subapical NPA treatment on temporal flower production in the PI of the male-sterile line ams. An approximately 1 cm region directly below the apex of the PI was either treated with NPA (0.1 mg/g) in lanolin or a mock at 12 dpa. n = 5 biologically independent samples, bars indicate s.e.m. Asterisks indicate significance as determined by Sidak’s multiple comparisons following fitting of a mixed-effects model; * = <0.05; ** = <0.01; *** = 0.001; **** = 0.0001. e, Effect of the strigolactone mutants max4-5 and d14-1 on primary inflorescence (PI) duration, relative to Col-0 wild-type. n = 8-11 biologically independent samples (Col-0 n = 8, max4-5 n = 11, d14-1 n = 8). The upper and lower confines of the box indicate the interquartile range, the central line indicates the median, and the whiskers represent the maximum and minimum values. Bars with the same letter are not statistically different from each other (ANOVA, Tukey HSD test).

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