Loss of rno increases photoreceptor number

Phenotype of ommatidiaWTrno1rno2rno3
% wild type99.252.756.259.0
% +1 outer R cell0.137.832.530.2
% +1 R70.
% +2 or more R cells0.
% – 1 or more R cells0.
Total ommatidia scored11496171000807

Ommatidia from homozygous rno eye clones or wild-type (WT) control clones were scored for the number and type of photoreceptors present. See materials and methods for details.