non apoptotic cell death variant

Animals exhibit variations in the specific activation or halting of processes within a cell that occur through necrosis or programmed cell death pathways different from apoptosis, so that its vital functions markedly cease, rather than simply deteriorating gradually over time, which culminates in cell death, compared to control.

precise vulval location variant

Any variation in the mating process that includes the male positioning his tail precisely over the vulva so that he may insert his spicules and ejaculate compared to control. In C. elegans precise vulva location (coordinating movement and tail positioning) requires the post cloacal sensillium and the spicules.

vulva location variant

Any variation in the male's ability to locate his partner's vulva when backing along the ventral side of the partner during mating compared to control. In C. elegans the male stops at the vulva, coordinates his movements to the hermaphrodite's, and positions his tail precisely over the vulva so that he may insert his spicules and ejaculate.

spicule insertion defective

Males exhibit defects in the insertion of the male copulatory spicules into the mating partner. In C. elegan spicule insertion behavior initiates when the male cloaca contacts the vulva. During most mating encounters, the spicule tips will prod the vulva continuously until they partially penetrate, which then causes the protractors to contract completely so that the spicules extend through the vulva.

gustatory learning abnormal

Variations in the behavioral plasticity induced by the integration of two sensory signals (one of which is gustation (taste)) compared to control. For example, C. elegans animals can be trained to associate the taste of a substance (e.g. sodium chloride, normally an attractant) to an aversive stimuli (e.g. starvation) so that trained worms will avoid the substance in the absence of the aversive stimuli. Animals with this phenotype have an abnormal response to the trained stimuli compared to controls.

gustatory aversive learning abnormal

Variations in the aversion of animals to substances sensed by gustation (taste) previously associated with an aversive stimuli during a gustation training protocol, compared to control. For example, C. elegans animals can be trained to associate the taste of a substance (e.g. sodium chloride, normally an attractant) to an aversive stimuli (e.g. starvation) so that trained worms will avoid the substance in the absence of the aversive stimuli. Animals with this phenotype will not exhibit the same aversion to the substance as compared to control animals.