glial cell & lamina
photoreceptor cell R1 & axon
photoreceptor cell R2 & axon
photoreceptor cell R3 & axon
photoreceptor cell R4 & axon
photoreceptor cell R5 & axon
photoreceptor cell R6 & axon
In Ptp69Dunspecified mutants, R cell axons form a largely normal topographic array in both the lamina and medulla. However the lamina plexus is wavy, of varying thickness, and discontinuous. In contrast to wild type, thicker than normal bundles of axon extend into the medulla. These features suggest that in Ptp69Dunspecified mutants, many R1-R6 axons fail to stop in the lamina and terminate in the medulla. Many of these axons remain within the medulla in the adult. In Ptp69Dunspecified mutants LPC (lamina precursor cell) proliferation and lamina neuron differentiation were normal. The organisation of lamina neurons was also largely normal. Glia migrate into the lamina as in wild type but form irregular rows.
Ptp10D1, Ptp69Dunspecified has larval VL3/4 motor neuron phenotype
Ptp10D1, Ptp69Dunspecified has larval RP2 motor neuron phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval VL3/4 motor neuron phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval RP2 motor neuron phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval intersegmental nerve phenotype
Ptp10D1, Ptp69Dunspecified has larval intersegmental nerve phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval VO2 motor neuron phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval VO1 motor neuron phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval abdominal segmental nerve phenotype
Ptp10D101/Ptp10D1, Ptp69Dunspecified has larval RP5 motor neuron phenotype
Df(1)101, Ptp69Dunspecified has larval VL3/4 motor neuron phenotype
Df(1)101, Ptp69Dunspecified has larval RP2 motor neuron phenotype
Df(1)101, Ptp69Dunspecified has larval intersegmental nerve phenotype
Df(1)101, Ptp69Dunspecified has larval VO2 motor neuron phenotype
Df(1)101, Ptp69Dunspecified has larval VO1 motor neuron phenotype
Df(1)101, Ptp69Dunspecified has larval abdominal segmental nerve phenotype
Df(1)101, Ptp69Dunspecified has larval RP5 motor neuron phenotype
Df(1)Δ59, Ptp69Dunspecified has larval VL3/4 motor neuron phenotype
Df(1)Δ59, Ptp69Dunspecified has larval RP2 motor neuron phenotype
Df(1)Δ59, Ptp69Dunspecified has larval intersegmental nerve phenotype
Df(1)Δ59, Ptp69Dunspecified has larval VO2 motor neuron phenotype
Df(1)Δ59, Ptp69Dunspecified has larval VO1 motor neuron phenotype
Df(1)Δ59, Ptp69Dunspecified has larval abdominal segmental nerve phenotype
Df(1)Δ59, Ptp69Dunspecified has larval RP5 motor neuron phenotype
Ptp10D1, Ptp69Dunspecified has larval VO2 motor neuron phenotype
Ptp10D101, Ptp69Dunspecified has larval VL3/4 motor neuron phenotype
Ptp10D101, Ptp69Dunspecified has larval RP2 motor neuron phenotype
Ptp10D101, Ptp69Dunspecified has larval intersegmental nerve phenotype
Ptp10D101, Ptp69Dunspecified has larval VO2 motor neuron phenotype
Ptp10D101, Ptp69Dunspecified has larval VO1 motor neuron phenotype
Ptp10D101, Ptp69Dunspecified has larval abdominal segmental nerve phenotype
Ptp10D101, Ptp69Dunspecified has larval RP5 motor neuron phenotype
Ptp10D1, Ptp69Dunspecified has larval VO1 motor neuron phenotype
Ptp10D1, Ptp69Dunspecified has larval abdominal segmental nerve phenotype
Ptp10D1, Ptp69Dunspecified has larval RP5 motor neuron phenotype
When RhoGAP93BdsRNA.Scer\UAS is driven by Scer\GAL4elav.PLu in a Ptp69Dunspecified/Ptp10Dunspecified background no midline crossing defects are seen.
Ptp69Dunspecified in double mutant combination with either Ptp10D1, Ptp10D1/Ptp10D101, Df(1)101 or Df(1)Δ59 results in alterations in many central nervous system axonal pathways in the embryo. The contralaterally projecting interneuronal axons of the NB 2-5 lineage cross the midline and turn anteriorly in a normal manner, but then double back across the midline after about two segments and grow posteriorly in the ipsilateral longitudinal tract. The axons of the ipsilateral intersegmental neurons grow anteriorly for a short distance and stop. The ISNd motorneuron extends an axon toward the midline that stalls and never enters the ISN root. In the NB 4-2 lineage, the RP2 axons stall before reaching their target, and the CoR axons do not branch onto all of their target muscles. The projection of local interneurons across the midline in the anterior commissure appears wild type, except that the axons always defasciculate into two bundles after crossing the midline. Ectopic interneuronal projections form on the ipsilateral side, and project across segmental boundaries in the anterior direction (these axons never form in wild type). In the NB 3-1 lineage, the RP neurons (RP1, RP3, RP4 and RP5) extend axons normally across the commissure and into the ISNb nerve, although they do not form normal synapses. The interneuronal projections are radically altered; they still cross the midline, but do not form defined anterior and posterior projections in the contralateral connective. Instead, they grow anteriorly in a circular path around the neuropil, contacting the midline at the end of their trajectory. No alterations in the numbers or positions of cell bodies of the progeny of NBs 3-1, 4-2 or 2-5 are seen in these embryos.
Ptp69Dunspecified is rescued by Ptp69D+t10.5