Heterozygotes do not show a malformed leg phenotype. Heterozygotes have normal bristle morphology. Homozygotes show 17 +/- 10% embryonic lethality and 100% of homozygous larvae fail to form pupae. Homozygotes show larval moulting defects.
38% of br1 ; SbEbr448/+ flies show a malformed leg phenotype. The predominant leg phenotype in br1/Y ; SbEbr448/+ flies is short, fat femurs and tibias. 25% of br5/+ ; SbEbr448/+ flies show a malformed leg phenotype. 15% of SbEbr448 Rho1J3.8 double heterozygotes show a malformed leg phenotype in at least one leg. 2% of SbEbr448 Rho1k02107b double heterozygotes show a malformed leg phenotype in at least one leg. 9% of SbEbr448 Rho1E3.10 double heterozygotes show a malformed leg phenotype in at least one leg. 4% of SbEbr448 RhoGEF204291 double heterozygotes show a malformed leg phenotype in at least one leg. 4% of SbEbr448 RhoGEF211-3 double heterozygotes show a malformed leg phenotype in at least one leg. 57% of SbEbr448 zipEbr double heterozygotes show a malformed leg phenotype in at least one leg. 1% of SbEbr448 zip1 double heterozygotes show a malformed leg phenotype in at least one leg. 11% of SbEbr448 zip33-1 double heterozygotes show a malformed leg phenotype in at least one leg.
Selected as: a mutation that enhances the br1 malformed leg phenotype.