TBPHQ367X/TBPHQ367X mutant adults (with higher penetrance in females than males) have an increase in supernumerary large sensory bristles on the mesothoracic tergum, most often on the scutellum, but some show supernumerary bristles at the anterior postalar or dorsocentral bristle positions; there are also some flies that show supernumerary sensory bristles on the anterior wing margin, and some embryos show additional sensory neurons in the abdominal dorsal cluster.
TBPHQ367X/+ mutant adults exhibit supernumerary bristles on the mesothoracic tergum at low penetrance, usually scutellar bristles.
A subset of TBPHQ367X/TBPHΔ142 mutant adults (with higher penetrance in females than males) display supernumerary anterior postalar bristles (most common phenotype when reared at 18[o]C or 25[o]C), supernumerary scutellar bristles (most common phenotype when reared at 30[o]C) or, in a small fraction of cases, supernumerary dorsocentral bristles. supernumerary bristles in mutants are accompanied by supernumerary sensory neurons. In general, supernumerary bristles are observed more frequently when flies are grown at 18[o]C than when reared at 25[o]C or 30[o]C.
There is a significant decrease in dendritic branching in the ddaE and ddaF neurons of homozygous third instar larvae.
Expression of TBPHGD6943 under the control of Scer\GAL4221 in a TBPHQ367X/+ background results in a significant decrease in dendritic branching in the ddaE and ddaF neurons of third instar larvae.
Homozygous single cell ddaE mutant clones show a significant reduction in the number of dendritic ends compared to controls.