FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Pp1-87B[+]/Pp1-87Bunspecified, bifR47 has photoreceptor cell R1 & axon phenotype
Pp1-87B[+]/Pp1-87Bunspecified, bifR47 has photoreceptor cell R2 & axon phenotype
Pp1-87B[+]/Pp1-87Bunspecified, bifR47 has photoreceptor cell R3 & axon phenotype
Pp1-87B[+]/Pp1-87Bunspecified, bifR47 has photoreceptor cell R4 & axon phenotype
Pp1-87B[+]/Pp1-87Bunspecified, bifR47 has photoreceptor cell R5 & axon phenotype
bifR47/+; Pp1-87Bunspecified/+ double mutant larvae show mistargeting of axons R2-R5 into the medulla and clumping of axons in the lamina. Neither single heterozygote shows this phenotype.
Pp1-87Bunspecified is rescued by Pp1-87B+t6.5
Pp1-87Bunspecified is not rescued by Pp1-87BtAM