M285 << bk1 << E(spl) << gro << bk2
Heterozygotes raised at 29oC have extra vein material in the posterior cell of the wing, with a penetrance of less than 20%.
Embryos exhibit few, if any, fused muscles. The unfused, birefringent fibres, have a random pattern of fine fibres apparently radiating out from small fragments of dorsal cuticle.
Hyperplasia of replicating sensory precursors: due to an increased number of ectodermal cells being recruited as sensory precursor cells.
Homozygous embryos have a extreme neurogenic phenotype: minuscule patch of dorsoposterior cuticle or two patches of posterior lateral cuticle due to failure in dorsal closure.
Strong phenotypic reversion: 250--350 facets per eye. Severe embryonic phenotype: loss of ventral, lateral and majority of dorsal cuticle. Viable when heterozygous with a Dl allele.
Embryonic lethal, extreme neurogenic phenotype.
Lethal in combination with gro and E(spl)1. Homozygotes have extreme neural hyperplasia and suppress the Nspl-1 phenotype.
Embryonic lethal affecting epidermal development.