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Fig. 5. sal is required for the transformation of R3/R4 into R7 in
svp mutants. (A-C) Tangential cross-sections of adult eyes containing
clones for svp (A), sal
(B) and svp/sal double (C)
mutants. The mutant cells are visualized by the absence of the w
marker, and the svpe22 transcript null allele was used.
(D) Quantitative analysis of the number of photoreceptors with large or small
rhabdomeres in svp, sal and
svp/sal mutants. The numbers
under the columns represent the number of large (diagrams on the left) or
small (diagrams on the right) rhabdomeres observed for each individual
ommatidium. The number of ommatidia with a particular number of large or small
rhabdomeres is indicated as a percentage of the total number of ommatidia
analyzed (116 in svp, 127 in
sal and 79 in
svp/sal).