Figure 3.

The relk mutants are phenotypically normal. Relative to A619 A), mature field grown plants of B)relk1, C)relk2, and D)relk3 are phenotypically WT. Scale bar = 30 cm. E–H) Mature ears of relk1, relk2, and relk3 are similar in size and seed yield to wild type. Scale bar = 2.5 cm. I–K) Similar to rel2, relk2, and relk3 have a significant increase in IM width without the concomitant increase in IM height. In I) SEM images were digitally extracted for comparison, Scale bar = 100 μm. Quantification by two-tailed Student's t-test. Box plot center line corresponds to median; box limits, upper and lower quantiles; whiskers, maximum and minimum values. ns = nonsignificant (P > 0.05), * = P ≤ 0.05, ** = P ≤ 0.01, ***P ≤ 0.001, ****P ≤ 0.0001.