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Figure 1


Fig. 1. ARF6 and ARF8 mRNA expression patterns. (A-I,L) Sections of wild-type (A-F), mARF6 (G-I) and arf6-2 (L) flowers hybridized with an antisense ARF6 probe. (J,K,M) Sections of wild-type (J), mARF8 (K) and arf8-3 (M) flowers hybridized with an antisense ARF8 probe. (A) Longitudinal section of inflorescence. Arrows indicate vasculature. (B) Longitudinal section of stage 9 flower. Arrow indicates ARF6 expression in the medial ridge of carpels. (C) Longitudinal section of a stage 12 flower. Arrow indicates stamen filament vasculature; arrowhead indicates nectary. (D) Cross section of a stage 9 flower gynoecium. Arrow indicates the medial ridge of carpels. (E) Stage 2-II ovule. Arrow indicates funiculus; arrowhead indicates the placental region. (F) Stage 3-I ovule. Arrow indicates funiculus. (G) Cross section of a stage 9 flower bud. Arrow indicates anther vasculature. (H,I) Stage 2-III (H) and stage 3 (I) ovules. Arrows indicate the integument and nucellus regions. (J) Stage 2-II ovule. Arrow indicates funiculus; arrowhead indicates the placental region. (K) Stage 3-I ovule. Arrow indicates integuments; arrowhead indicates nucellus. ch, chalaza; fu, funiculus; nu, nucellus. Scale bars: 60 µm in A-C,G; 30 µm in D-F,H-M.