Figure 6.

Localization of greenA and uv mRNA in the ocelli and compound eyes. Transverse sections through the head of an adult male were hybridized with sense (s) and antisense (as) riboprobes. (A-B, E-F) Right ocellus sectioned longitudinally. (C, G) Left ocellus (to the left) sectioned longitudinally and median ocellus (to the right) sectioned tangentially. (D, H) Ventral part of the compound eye sectioned longitudinally. Whereas greenA is transcribed in all three ocelli (B-C), it is absent from the retina of the compound eyes (D). uv, on the other hand, is clearly detectable in the compound eyes (H) but cannot be found in the ocelli (F-G). Up corresponds to dorsal in all panels. Broken line = basement membrane, scale bars = 100 μm.

Henze et al. BMC Evolutionary Biology 2012 12:163   doi:10.1186/1471-2148-12-163
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