- dorsal nerve cord development variant
Variations in the progression of the anatomical structures that consist of processes of ventral cord motor neurons that send commissures to the dorsal side, as well as processes of certain head and tail neurons, over time from initial formation to mature structure compared to control (Wormatlas).
- cord commissures variant
Variations in the structure, organization or path of axon tracts that grow circumferentially around the animal in a single, directed trajectory to bridge the ventral and dorsal cords, compared to control animals.
- long range axon migration variant
Animals exhibit axons with migration behaviors that differ from those observed in control animals after the axons cross a half-way point between opposing neural cords. In C. elegans this point is marked by the lateral seam cells between the ventral and dorsal cords.
- short range axon migration variant
Animals exhibit axons with migration behaviors that differ from those observed in control animals before the axons reach a half-way point between opposing neural cords. In C. elegans this point is marked by the lateral seam cells between the ventral and dorsal cords.
- dorsal ganglion development variant
Any variation in the progression of the ganglion that lies dorsally beside the nerve ring in the head over time from its initial formation to its mature form compared to control. In C. elegans, It contains neuron cell bodies that send their neuronal processes into the ring and longitudinal nerves, but form no local neuropil separate from the nerve ring. The dorsal ganglion is in close contact with the dorsal hypodermal cord (Wormatlas).
- dorsal intercalation defective
Animals exhibit defects in the generation of the dorsal epithelial sheet, which entails distinct cell shape changes and movements to affect the interdigitation of two rows of dorsal cells resulting in a single row of cells across the dorsal midline.
- humpback
A body elongation defect in which embryos develop abnormally bulged dorsal surfaces.
- body bend variant
Any variation in the maximum ventral and dorsal flex of the animal compared to control animals.
- exaggerated body bends
The maximum ventral and dorsal flex of the animal is greater than that observed for control animals.