DEV01942 Supplementary Material

Files in this Data Supplement:

• Supplemental Figure 1 - Fig.S1. jba-1D floral meristem size and floral organ number. (A) Mean height and width of wild-type and jba mutant stage 3 floral meristems. The standard error is indicated (n=10). (B) Mean organ number of wild-type and jba mutant flowers. The standard error is indicated (n=100).

• Supplemental Figure 2 - Fig.S2. Double mutants of jba-1D with wus, dcl1 and rev. (A) Mature wus-1 plant, displaying multiple adventitious inflorescence meristems and a few reduced flowers. (B) Mature wus-1 jba-1D double mutant plant, which is indistinguishable from the wus-1 single mutant. (C) Inflorescence of a jba-1D/+ plant from a control cross with a highly fasciated stem phenotype (arrowhead). (D) Inflorescence of a jba-1D/+ rev-6 plant showing the same fasciated stem phenotype (arrowhead). (E) Inflorescence of a dcl1-9/+ plant from a control cross to Col. All plants had a wild-type appearance. (F) Inflorescence of a dcl1-9/+ jba-1D/+ plant, selected for the presence of the T-DNA in jba-1D. Approximately 50% of the plants had a completely wild-type appearance. (G) Higher magnification of a dcl1-9/+ inflorescence apex from the control cross to Col. (H) Inflorescence of a dcl1-9/+ jba-1D/+ plant. Approximately 50% of the plants had slight stem enlargement, but much more closely resembled wild-type plants than jba-1D/+ plants.