- no uterine cavity
Animals lack the inner space of the uterus through which the fertilized egg passes on its way out of the nematode via the vulva (Wormatlas).
- basement membrane gap expansion variant
Animals display variations in the manner in which an opening in the basement membrane (a thin, dense, sheet-like structure built on a network of polymeric laminin and type IV collagen) expands to make way for intertissue connections, 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.