P{lacW} insertion in an intron.
Homozygotes and taraL4/Df(3R)sbd26 animals die as late embryos or first instar larvae without any obvious cuticle pattern defects. Heterozygotes do not have a held-out wing phenotype. taraL4 homozygotes rescued by one copy of taraβ.Ubi-p63E have poor fertility and a fully penetrant wings-held-out phenotype. taraL4 homozygotes rescued by a single copy of taraβ.Ubi-p63E sometimes have a thickened arista (resembling a weak antenna-to-leg transformation) and they may have haltere defects, which appear to be result from transformation to wing margin (a row of bristles is formed). Only 30% of taraL4 homozygotes rescued by two copies of taraβ.Ubi-p63E have a held-out wings phenotype and their fertility is increased compared to those carrying one copy of taraβ.Ubi-p63E.
taraL4 is a suppressor of mesothoracic leg phenotype of Pc16
taraL4 is a suppressor of metathoracic leg phenotype of Pc16
taraL4 is a suppressor of mesothoracic leg phenotype of ph-p410
taraL4 is a suppressor of metathoracic leg phenotype of ph-p410
taraL4/tara[+] is a non-suppressor of eye phenotype of Scer\GAL4ey.PH, asf1UAS.cMa
60% of flies carrying pbhs.PB that are also heterozygous for taraL4 show partial truncation of the distal part of wing vein L4. This phenotype is not seen in either pbhs.PB single mutant or taraL4/+ single mutant flies. Deletions of wing vein L5 are also seen in the double mutant flies. pb4 taraL4/pb13 + flies show a weak but reliable transformation of the distal labium to antennal arista. 36% of osa1 taraL4 double heterozygotes have a held-out wing phenotype. 2% of trxE2 taraL4 double heterozygotes have a held-out wing phenotype. 12% of brm2 taraL4 double heterozygotes have a held-out wing phenotype. 45% of trxE2 brm2 taraL4 triple heterozygotes have a held-out wing phenotype.
taraL4/+ does not suppress the rough eye phenotype due to Scer\GAL4ey.PH; asf1Scer\UAS.cMa.
taraL4 is partially rescued by taraβ.Ubi-p63E
The recessive lethality of taraL4 and its interaction with pbhs.PB can be reverted by excision of the P{lacW} element.