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Fig. 4. Classes of mutants affecting the localisation of bicoid mRNA.
GFP-Staufen (green) and rhodamine-phalloidin staining (red) are shown in the
left panels (A,C,E). bicoid in situ hybridisations are shown on the
right (B,D,F). (A,B) Wild-type egg chambers. (C,D) 7D8-15 egg chambers, an
example of the class of mutants in which bicoid mRNA fails to
concentrate along the anterior cortex in early stages of oogenesis. (E,F)
larsen2B6-3, a member of the second class of
bicoid-specific mutants, in which bicoid mRNA localisation
in early stages is indistinguishable from wild type, but GFP-Staufen fails to
concentrate at the anterior cortex of stage 12 oocytes.