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Fig. 4. Gametophytic maternal effect mutants with a fis phenotype. KS117
GFP is misexpressed. In mutant seeds, the level of GFP accumulation is much
higher and the expression is not restricted to the posterior pole in mutant
seeds. More than 25% of seeds abort. One line from each mutant group is
presented here. (A-G) Seeds observed by epifluorescence stereomicroscopy.
(H-N) Seeds observed by light microscopy. All aborting seeds are indicated by
red dots. (A,H) WT KS117; (B,I) dme-4/DME; (C,J)
mea-6/MEA; (D,K) fis2-6/FIS2; (E,L)
fie-11/FIE; (F,M) bga-1/BGA; (G,N) msi1-2/MSI1.
Scale bar: 200 µm (all images).