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. Author manuscript; available in PMC: 2014 Sep 15.
Published in final edited form as: Dev Biol. 2013 Jul 11;381(2):482–490. doi: 10.1016/j.ydbio.2013.07.001

Fig. 4. ewg functions in R8 subtype specification and is required to maintain repression of Rh6 in pR8 photoreceptors.

Fig. 4

(A–C) Confocal images of 4 weeks old adult retina stained with antibodies against Rh5 (blue) and Rh6 (red) with zoomed-in images. (A) ewgl1 mutant retina shows expanded expression of Rh6 in all R8. Arrows point R8 cells co-expressing Rh5 and Rh6. (A') Rh6 channel only. (A”) Rh5 channel only. Note the co-expression of Rh5 and Rh6 in the bottom panels of A and A'. (B) A four week old wild-type retina shows no expansion of Rh6 expression, and maintains mutually exclusive Rh5 and Rh6 expression. (B') Rh6 channel only. (B”) Rh5 channel only. (C) ewgl1 mutant rescued with ewg cDNA shows no expansion of Rh6 in 4 weeks old flies. (C') Rh6 channel only. (C”) Rh5 channel only.