66E;66F
66E;66F
bk1 << Scf << bk2
Df(3L)knittrigΔ1 embryos transheterozygous with Df(3L)Scf-R6 show reduced formation of ganglionic tracheal branches with significant penetrance - the majority of embryos show disruption in at least one ganglionic branch. No abnormal phenotype is detected for midline glial cells.
Df(3L)knittrigΔ1 flies transheterozygous with Df(3L)Scf-R6 show reduced viability and only rare escaper flies are found. Most mutants die during pupal stages or as pharate adults. Most escapers are unable to undergo complete wing inflation, causing wrinkled wings. Some escapers show partially inflated and abnormally opaque wings. Mutant pupal wings appar normal.
The Df(3L)Scf-R6 chromosome does not act as a dominant suppressor of telomeric silencing (assayed using the effect of the chromosome on the eye colour phenotype of flies carrying "P{wvar}KR3-2", a stable "brown-red" variant of the P{3'WP-2,wvar}2Lt insertion).
Heterozygosity for Df(3L)Scf-R6 results in 1.2% X chromosome nondisjunction and 0.5% fourth chromosome nondisjunction in In(1)FM7/X ; svspa-pol females.
Homozygous lethal.
All limits from polytene analysis (FBrf0099019)