The number of ommatidia is abnormal in heterozygotes.
"Furrow stop" mutant. The eye discs contain 7-8 columns of ommatidial R cell clusters.
Barunspecified has visible phenotype, suppressible by Low[+]/Low1
Barunspecified has phenotype, enhanceable by oro1
Barunspecified has phenotype, enhanceable by E(Bar)1
Barunspecified has eye phenotype, suppressible by Low[+]/Low1
Barunspecified has phenotype, suppressible by ptc9