Amino acid replacement: E157K.
Nucleotide substitution: ?469?.
G6534884A
?469?
E158K | dx-PA
E157K
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
Homozygous females have an excess of microchaetae, having 133.13 +/- 1.88 thoracic microchaetae per heminotum (compared to the wild-type number of 130.35 +/- 1.54).
Thickened wing veins and wing margin loss.
Viable. Extra wing vein material at distal ends, nicked margins an tips. Ocelli are fused or closed, hairs and bristles are abnoral or missing. Weak rough eye phenotype: irregular ommatidia, bristles are duplicated or missing. No visual abnormality. Homozygotes rescue the mutant phenotype of NAx-E2, NAx-9 and NAx-75c transheterozygotes. 40% eggs from homozygous females fail to hatch: defective dorsal appendages and no cuticular structures. Hemizygote males with NAx-E2 have a low fertility. Nnd-1/dxENU and Nnd-2/dxENU transheterozygous flies never reach adulthood (stage of lethality not determined). An extra wild type copy of N suppresses the wing nicks and thickened veins, and partially suppresses the ocellar phenotype. An extra wild type copy of Dl or mam causes some pupal lethality, escapers have small eyes. Flies heterozygous for H and homozygous for dxENU have eyes smaller than wild type, infrequent missing or duplicated bristle phenotype and ommatidia are square wih a bristle at each corner.
NAx-9/NAx-E2, dxENU/dx[+] has partially lethal - majority die phenotype, enhanceable by krzS095214
Nunspecified, dxENU has lethal phenotype, suppressible by Su(dx)4
Nunspecified, dxENU has lethal phenotype, suppressible by Su(dx)56
dxENU/dx[+] is a suppressor | partially of partially lethal - majority die phenotype of NAx-9/NAx-E2
Nunspecified, dxENU has lethal phenotype
dxENU has phenotype, enhanceable by Pcif1EY11352/CG11399[+]
dxENU has wing vein phenotype, suppressible by Df(2L)Su(dx)-7
dxENU has wing phenotype, suppressible by Df(2L)Su(dx)-7
dxENU/dx[+] is an enhancer of microchaeta | increased number | heat sensitive phenotype of dshhs.PA
The percentage of NAx-9/NAx-E2 flies surviving to adulthood is dramatically increased by dxENU/+. Survival of NAx-9/NAx-E2 dxENU/+ flies to adulthood is significantly decreased by krzS047819/+ or krzS095214/+.
dxENU dominantly suppresses the loss of microchaetae seen in NMcd1, NMcd5 or NMcd8 heterozygotes, increasing the number of microchaetae per heminotum to 78.33 +/- 1.09, 94.25 +/- 1.15 or 90.30 +/- 1.61 respectively. dxENU dominantly enhances the increase in microchaetae seen when dshhs.PA is expressed using heat shock, increasing the number to 142.12 +/- 2.53 thoracic microchaetae per heminotum.
Triple homozygotes of Su(dx)sp with NAx-E2, dxENU are inviable. NAx-E2, dxENU/NAx-9+;Su(dx)1/+ are inviable, whereas Nnd-1, dxENU; Su(dx)1 are viable though the wing blade is reduced. The mutant wing, eye and ocelli phenotypes are dominantly suppressed by Su(dx)1, Su(dx)2 and Su(dx)sp. Flies that are dxENU/Y; Su(dx)1/+; mam10/+ are viable but display clear dx phenotypes in the ocelli and wings. Flies that are dxENU/Y; Su(dx)1/+; Dl9P/+ are viable but display clear dx phenotypes in the ocelli and wings.
Xu and Artavanis-Tsakonas.
Strong dx allele.
Variable maternal effect lethality of the dxENU chromosome is not linked to dx function.