Redundant function of <i>AtKIN13A</i> and <i>AtKIN13B</i>.

<p>(A,B) Lower-magnification (A) and higher-magnification view of opened siliques of an <i>atkin13a-3 +/atkin13a-3 atkin13b-1</i> plant to show seed abortion (arrowheads in (A)) and unfertilized ovules (arrows in (B)). (C) Quantification of seed abortion. Values are based on more than 100 seeds per genotype. (D) Whole-plant photographs of the indicated genotypes after EtOH-induction before (early) and during bolting (late). (E) Overlays of light and CFP fluorescence micrographs of flowers from the indicated genotypes after EtOH-induction. CFP fluorescence indicates expression of the amiRNA transgene. The two images on the right show a single flower and an overview of an inflorescence from an <i>amiKIN13B</i>-expressing <i>atkin13a-3</i> mutant plant. (F) Petal sizes of indicated genotypes. Values are mean ±SD of 12 petals from more than 8 plants. (G) Petal-cell sizes of the indicted genotypes. Values are mean ± SD of 50 petal cells from more than 16 petals. (H) Relative expression of <i>AtKIN13A</i> (left) and <i>AtKIN13B</i> (right) in plants of the indicated genotypes after EtOH induction. Values are mean ± SD of three technical replicates. A biological replicate experiment is shown in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1004627#pgen.1004627.s008" target="_blank">Fig. S8D</a>. Asterisk indicates significant difference from wild-type at p<0.05 (with Bonferroni correction).