Skip to main content
. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Curr Opin Genet Dev. 2009 Aug;19(4):374–378. doi: 10.1016/j.gde.2009.06.001

Figure 1.

Figure 1

The phenotypes of genes involved in phase change in Arabidopsis, maize and P. patens. A) The phenotypes of wild-type Arabidopsis (Wt), and a transgenic plant constitutively expressing miR156a under the regulation of the CaMV 35S promoter (miR156++), and a plant constitutively expressing a miR156 target site mimic under the regulation of the 35S promoter (miR156- ); this mimic reduces the activity of miR156 (18). Over-expression of miR156 prolongs the expression of the juvenile phase, while reducing the acitivity of miR156 has the opposite effect. B) The phenotype of wild type maize, and dominant mutations of three different miR156 loci that cause miR156 to be over-expressed. All three mutations prolong the expression of the juvenile phase and transform reproductive structures into leaves. C) A wild type P. patens gametophyte in the juvenile stage of development, and mutants lacking ppDCL3 and ppRDR6. Both of these mutants have begun to produce leafy gametophores; figure modified with permission from (51).