These cells develop normally in the thoraxĪnd abdomen but do not form structures in the ventral anteriorĪspect of the head specifically the vibrissae and maxillary X-ray-induced somatic clones of Dfd- cells have shown that the locus is also required for adult
Reason for its low-penetrance production by this particularĪllele is not known. Has not been observed in any other mutant genotype and the To be replaced by cephalopharyngeal plates. Transformation of the H piece and lateral-graten which appear Penetrance) has also been noted in animals hemizygous for aīreakpoint-associated revertant of the single dominant gain-of-function allele (Dfdrv1). The remaining gnathal structures are present albeit disarranged likely due to abnormalities in the movements associated Maxillary segments, the dorsal lateral papillae of the maxillary sense organ, the mouth hooks, and the maxillary cirri. Missing structures normally derived from the mandibular and
There are no discernibleĭefects in the trunk. Or hemizygous animals die at the end of embryogenesis and showĪ spectrum of defects in the head.
