Figure 6.

Growth and Flowering Phenotypes of the Arabidopsis Gene Knockout Plants in Which One to Five MYOB and/or Myosin XI-K Genes Were Inactivated.

(A) Mean plant height and sd (n = 36) at 38 d after germination. 2KO, myob2 myob3; 3KO, myob1 myob2 myob3; 4KO, myob1 myob2 myob3 myob4.

(B) Mean rosette diameter and sd (n = 36) at 38 d after germination.

(C) Time course of plant flowering measured as a percentage of flowering plants at each time point postgermination (p.g.). The time difference in flowering was quantified by comparing the times at which 50% of all plants of a given line had flowered (dotted red line).

(D) Image of a flat in which Columbia and xi-k 4KO (xi-k myob1 myob2 myob3 myob4) plants were grown next to each other for 35 d after germination.

Asterisks indicate significance limits: **P < 0.01 and ***P < 0.001; black is for comparison with the Columbia control, whereas red is for controls corresponding to each synthetic mutant (xi-k 2KO versus 2KO; xi-k 3KO versus 3KO; and xi-k 4KO versus 4KO).