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Fig. 1. Morphology of jag floral and vegetative organs. (A) Wild-type
Landsberg erecta flower. (B,C) jag-3 flower with narrow
petals curling towards adaxial surface. Sepal with serrations at the distal
tip is marked with an asterisk. (D) jag-2 flower. (E) SEM of
jag-3 flower with a narrow sepal (arrowhead). (F) jag-3
abaxial petal with buckled margins. (G) jag-3 stamens fused along
filament margins. (H) jag-3 gynoecium abnormally fused at the stigma.
(I) Wild-type inflorescence with sepals enclosing floral buds. (J)
jag-3 inflorescence with gynoecium protruding from floral bud
(arrowhead). A wide medial sepal is present on the same flower (white arrow).
A black arrow indicates a stage 7 flower with carpels protruding. (K)
jag-3 early floral primordia with an extra sepal primordium initiated
(arrow). (L) Petal primordium (p) from stage 9 jag-3 flower. (M)
Petal primordium (p) from stage 10 jag-3 flower. (N) Wild-type 7-day
post germination seedling. (O) jag-3 seedling with altered cotyledon
shape. (P) Fifth rosette leaf from wild-type (left) or jag-3 (right)
that has serrated margins. Scale bar: 100 µm (E-K,M); 10 µm (L); 1 mm
(N-P).
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