Imprecise excision of P{EP}I-2GE26681, resulting in retention of the P{EP} extremity in I-2 and deletion of 882 bp proximal to the original P{EP}I-2GE26681 insertion, including the C-terminal one third of Cdk8 protein-coding sequences.
Approximate endpoints of an 882 bp deletion associated with the imprecise excision of P{EP}I-2GE26681.
Pupariation is delayed by approximately 2-3 days in homozygous animals. This developmental delay is slightly rescued by feeding with 20-hydroxyecdysone.
96% of homozygous prepupae fail to evert their anterior spiracles, and the prepupae are partially separated from the pupal case.
The level of ecdysteroids is significantly lower than normal in homozygous wandering third instar larvae and white prepupae.
Homozygous larvae have a significantly increased triglyceride content compared to controls.
Generation of Cdk8K185 clones specifically in the leg (using Scer\GAL4Dll-em212 and Scer\FLP1Scer\UAS.cUa) and in a Minute background results in severely stunted legs. In an other wild type background, these clones result in tarsal segmentation defects in all three paris of adult legs. Male prothoracic (T1) legs exhibit sex combs with slightly elevated teeth number and discontinuities in the tooth alignment, leading to irregularly grouped, fragmented sex combs. Leg size is relatively unaffected, but the most proximal tarsal joint is usually abnormal.
Generation of large Cdk8K185 clones specifically in the eye (using Scer\FLP1ey.PB) in a Minute background results in full-sized eyes with mostly normal differentiated ommatidia.
Heat-induced Cdk8K185 clones in the adult notum are associated with loss of bristles.
Generation of large Cdk8K185 clones specifically in the eye (using Scer\GAL4ap-md544 and Scer\FLP1Scer\UAS.cUa) in a Minute background results in extensive loss of notal macrochaetes.
Df(3L)AC1/Cdk8K185 has increased mortality during development phenotype, suppressible by Hsap\CDK19UAS.Tag:HA/Scer\GAL4Act5C.PI
Df(3L)AC1/Cdk8K185 has lethal phenotype, non-suppressible by Scer\GAL4Act5C.PI/Hsap\CDK19T196A.UAS.Tag:HA
Df(3L)AC1/Cdk8K185 has lethal phenotype, non-suppressible by Hsap\CDK19Y32H.UAS.Tag:HA/Scer\GAL4Act5C.PI
Cdk8K185, ktoT241 has sex comb tooth | somatic clone phenotype
Cdk8K185, ktoT241 has prothoracic tarsal segment | somatic clone phenotype
Cdk8K185, ktoT241 has eye | somatic clone - Minute background phenotype
The distal leg phenotypes provoked by Cdk8K185, ktoT241 double mutant clones induced specifically in the leg (using Scer\GAL4Dll-em212 and Scer\FLP1Scer\UAS.cUa) are indistinguishable from ktoT241 alone but distinct from Cdk8K185 alone, both for sex comb differentiation and for overall leg structure.
The phenotypes of Cdk8K185, ktoT241 double mutant clones induced specifically in the eye (using Scer\FLP1ey.PB) in a Minute background are indiscernible from ktoT241 alone.
Df(3L)AC1/Cdk8K185 is rescued by Scer\GAL4Act5C.PI/Cdk8UAS.cUa
Cdk8K185 is rescued by Cdk8Ubi-p63E.PL
Cdk8T:Avic\GFP-EGFP rescues the developmental delay to pupariation, the failure of prepupal anterior spiracle eversion and the prepupal lethality of Cdk8K185 animals.
Cdk8K185 homozygotes are fully rescued to yield viable, morphologically normal, fertile adults by expression of Cdk8Ubi-p63E.PL.