Fig. 4

GhWDL3 inhibited fiber cell elongation. A qRT-PCR analysis of the expression level of GhWDL3 in 15 DPA fibers of J02-508 (WT) and VIGS-GhWDL3 lines. GhUBQ was used as the internal control. B Mature fibers of WT(VA) and VIGS- GhWDL3 lines. C Statistical analysis of mature fiber length of WT and VIGS-GhWDL3 lines. The error bars in this figure represent the standard deviations (SDs) for at least three independent experiments. Bars in (B) = 1 mm. Statistical significance was determined using one-way ANOVA combined with Tukey’s test. ***, P < 0.001