Polytene chromosomes normal.
Insertion of a 17.6 element in the first intron at approximately 3R:16731980 (release 6 genome).
gypsy insertion in the cis-regulatory region.
Insertion of gypsy element.
Insertion of a 7.3kb gypsy element at map position -63.5kb.
Ubxbx-34e flies show a haltere to wing transformation.
Homozygotes have an enlarged haltere, with long, dark costal bristles. Heterozygotes have wild-type halteres.
The Ubxbx-34e phenotype is not suppressed in flies carrying su(Hw)wt or su(Hw)Δ656-705 in a su(Hw)7/su(Hw)V background, partly suppressed in flies carrying su(Hw)Δ706-736 or su(Hw)Δ881-944 in a su(Hw)7/su(Hw)V background, and strongly or completely suppressed in flies carrying su(Hw)Δ673-943, su(Hw)Δ2-203.673-943, su(Hw)Δ738-780, su(Hw)Δ2-203, su(Hw)Δ853-880 or su(Hw)Δ782-944 in a su(Hw)7/su(Hw)V background.
Does not affect the frequency of the trx bithorax-variegated phenotype in heterozygous combination with Df(3R)red-P52.
Homozygotes and transheterozygotes of Ubx alleles demonstrate a significant enhancement of the bx phenotype when in combination with E(bx)2. Haltere to winglike and metanotum to mesonotumlike transformations are enhanced.
Different genetic combinations of Pc alleles and Ubx alleles suggest that the products of the bx region of Ubx are responsible for the "cbx" phenotype of the Pc mutations and in the absence of Pc the overexpression of bx gene products suppresses the pbx insufficiency phenotype in the posterior segments.
Haltere are transformed to wing and are 10-15% of wing size, dorsal tissue of T3 is incompletely transformed to metanotum, hypopleural plates are incompletely transformed to sternopleural plates, 8-9 hypopleural bristles are still present and the anterior third leg displays a strong transformation to anterior second leg, as seen by the bristle pattern. Phenotype can be suppressed by su(Hw) mutations.
Ubxbx-34e shows the "ppx" transformation at 17oC: ventral regions of T2p and T3p are affected.
Flies usually have normal transversal fascicles in the adult CNS, although the anterior dorsal T3 fascicle is sometimes slightly malformed.
Moderate transformation of anterior third thoracic segment to second thoracic segment.
Homozygotes show homeotic transformation of anterior haltere to anterior wing.
The frequency of variegated bithorax transformations seen in Df(3R)red-P52 heterozygotes is not increased in flies also heterozygous for Ubxbx-34e.
Metathoracic outpushing is a uniform, narrow, hairy band. Balancers depressed, inflated, with elongated pointed tip and heavy line of costal bristles. Base of third leg shows sternopleural bristles like those of normal second leg. Metathoracic development of Ubxbx-34e/Ubxbx-34e > Ubxbx-34e/Ubxbx-W > Ubxbx-34e/Ubxbx-1. Ubxbx-34e/Ubx1 has round, flat, wing-like halteres; Ubxbx-34e Ubx1/+ + = Ubx1/+ (Lewis). Complements Ubxbxd-1. Reasonable viability and fecundity. Highly constant expression and easy separability. Expression increased slightly at 29oC, decreased at 15oC. RK2.
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-E43
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-E338
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Nipped-B[+]/Nipped-B292.1
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Nipped-B[+]/Nipped-B407
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-C160.1
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-D341.1
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-D263.3
Ubxbx-34e, su(Hw)e2 has visible phenotype, enhanceable by Df(2R)Nipped-E299.1
Ubxbx-34e, su(Hw)e2 has visible phenotype, non-enhanceable by Nipped-A222.3
Ubxbx-34e, su(Hw)e2 has visible phenotype, non-enhanceable by Nipped-A323
Ubxbx-34e has visible | homeotic phenotype, non-suppressible by Df(2R)ED3921
Ubxbx-34e, su(Hw)e2 has visible phenotype, non-suppressible by Nipped-A222.3
Ubxbx-34e, su(Hw)e2 has visible phenotype, non-suppressible by Nipped-A323
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC6
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC7
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-BNC23/Nipped-B[+]
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC39
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-BNC41/Nipped-B[+]
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC59
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC71
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-BNC77/Nipped-B[+]
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype, enhanceable by Nipped-B[+]/Nipped-BNC78
Ubx6.28/Ubxbx-34e has adult mesothoracic segment | anterior | ectopic phenotype, enhanceable by E(bx)Nurf301-2
Ubx6.28/Ubxbx-34e has adult metathoracic segment phenotype, enhanceable by E(bx)Nurf301-2
Ubx6.28/Ubxbx-34e has haltere phenotype, enhanceable by E(bx)Nurf301-2
Ubx6.28/Ubxbx-34e has wing | ectopic phenotype, enhanceable by E(bx)Nurf301-2
Ubx6.28/Ubxbx-34e has adult metathoracic segment phenotype, enhanceable by E(bx)ry122
Ubx6.28/Ubxbx-34e has haltere phenotype, enhanceable by E(bx)ry122
Ubx6.28/Ubxbx-34e has wing | ectopic phenotype, enhanceable by E(bx)ry122
Ubx6.28/Ubxbx-34e has adult mesothoracic segment | anterior | ectopic phenotype, enhanceable by E(bx)ry122
Ubxbx-34e has adult metathoracic segment | dorsal phenotype, enhanceable by z1-35
Ubxbx-34e has adult metathoracic segment | dorsal phenotype, enhanceable by z1-42
Ubxbx-34e has metathoracic laterotergite phenotype, enhanceable by zae(bx)
Ubxbx-34e has haltere phenotype, non-suppressible by Df(2R)ED3921
Ubxbx-34e has wing | ectopic phenotype, non-suppressible by Df(2R)ED3921
Ubxbx-34e, su(Hw)e2 has adult thorax phenotype
DIP1c.UAS, Scer\GAL4Bx-MS1096, Ubxbx-34e has haltere phenotype
Dp(1;Y)y+mal106, Ubxbx-34e has haltere phenotype
Df(2R)ED3921 fails to suppress the haltere to wing transformation of Ubxbx-34e flies.
Ubxbx-34e/+ flies carrying Dp(1;Y)y+mal106 have a punctate line of short, dark bristles on the capitellum and a denser cluster of bristles at the distal tip. Ubxbx-34e/+ flies expressing DIP1c.Scer\UAS under the control of Scer\GAL4Bx-MS1096 have long bristles along the entire surface of the haltere.
The addition of E(bx)Nurf301-2, E(bx)ry122 or Df(3L)3643 to Ubxbx-34e/Ubx6.28 animals enhances the anterior transformation seen in both the third thoracic segment and the haltere.
Schultz, 20 May 1934.
Schultz.
The sensitivity of the metanotal transformation of the Ubxunspecified/Ubxbx-34e genotype to chromosomal rearrangements has been studied in the presence and absence of za.
Partial revertant has been obtained that provides evidence that the gypsy element is responsible for the mutant phenotype.
Ubx mutants have been classified into "transvection groups", on the basis of transvection tests with Ubxbx-34e, Ubxpbx-2, and UbxCbx-1 Ubx1 mutants.
Source of the gypsy element.
The phenotype of a number of combinations of Ubx mutations has been investigated to determine the role of the bxd regulatory region in the modulation of Ubx expression.