A 10bp deletion that results in a frame shift, introducing 15 novel residues at the C-terminus followed by a stop codon.
Homozygous dmt3999 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system. Inhibiting apoptosis specifically in the trachea (through expression of BacA\p35 under the control of Scer\GAL4btl.PU) significantly rescues the trachea and salivary duct defects.
dmt3999/dmtI184 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system.
dmt589/dmt3999 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing.
dmt3999/Df(3R)GB104 mutant embryos exhibit frequent breaks and/or gaps in the dorsal trunk, often associated with shorter ventral tracheal branches. Individual salivary ducts often have significant gaps or are completely missing. Defects are also seen in the peripheral nervous system.
In aul3999 embryos, the dorsal trunk and ventral branches of the tracheal system appear broken or fail to form at all.
dmt3999 is rescued by dmtUAS.cKa/Scer\GAL4Tub.PU
dmt3999 is rescued by dmtUAS.N.GFP/Scer\GAL4Tub.PU
dmt3999 is partially rescued by Scer\GAL4btl.PU/dmtUAS.cKa
dmt3999 is partially rescued by dmtUAS.cKa/Scer\GAL4sens.PU
dmt3999 is partially rescued by Scer\GAL4elav.PU/dmtUAS.cKa
dmt3999 is partially rescued by dmtUAS.N.GFP/Scer\GAL4btl.PU
dmt3999 is partially rescued by dmtUAS.N.GFP/Scer\GAL4elav.PU
dmt3999 is partially rescued by dmtUAS.N.GFP/Scer\GAL4sens.PU
Global expression of dmtScer\UAS.cKa under the control of Scer\GAL4tub.PU significantly rescues the salivary duct and trachea gap phenotypes seen in homozygous dmt3999 mutant embryos. Trachea and duct-specific expression under the control of Scer\GAL4btl.PU rescues the defects in the duct and trachea. Expression in the peripheral nervous system (PNS) under the control of Scer\GAL4sens.PU or Scer\GAL4elav.PU rescues the PNS and salivary duct defects, but gaps are still observed in the trachea.
Global expression of dmtScer\UAS.N.T:Avic\GFP under the control of Scer\GAL4tub.PU significantly rescues the salivary duct and trachea gap phenotypes seen in homozygous dmt3999 mutant embryos. Trachea and duct-specific expression under the control of Scer\GAL4btl.PU rescues the defects in the duct and trachea. Expression in the peripheral nervous system (PNS) under the control of Scer\GAL4sens.PU or Scer\GAL4elav.PU rescues the PNS and salivary duct defects, but gaps are still observed in the trachea.
Selected as: a mutation that disrupts tracheal development when homozygous.