Figure 2. Phenotypes of transgenic Arabidopsis overexpressing JcLFY.

(A) Wild-type (WT) Arabidopsis under LD conditions (30 d). (B) Transgenic Arabidopsis L8 grown under LD conditions (40 d); the white arrow indicates a branch and a solitary flower formed in a cauline leaf axil. (C,D) Transgenic Arabidopsis L11 and L12 grown under LD conditions (20 d); the red arrows indicate the solitary flowers, while the pink arrow indicates the terminal flower. (E) WT Arabidopsis grown under SD conditions (120 d). (F) Detailed image of contents of the red box in (E). (G) Transgenic plant L11 grown under SD conditions, exhibiting opposite leaves and solitary flowers formed in leaf axils; fruit development was normal. (H) Transgenic plant L12 grown under SD conditions; two flowers formed in a leaf axil and fruit development was normal. All Arabidopsis plants were derived from the Columbia ecotype. (I,J) Schematic comparison of WT and 35S:JcLFY transgenic Arabidopsis plants grown under LD and SD conditions, respectively. Arrowheads indicate shoot meristems, while circles indicate flowers. In WT plants, the primary shoot can be subdivided into a basal rosette, which contains leaves separated by short internodes, and an apical shoot with elongated internodes; the apical shoot, often referred to as an inflorescence, bears a few bracts (small stem leaves) with associated secondary shoots, as well as a potentially indeterminate number of flowers. Scale bar = 1 cm.