- M lineage variant
The descendants of the M precursor cell exhibit variations in developmental programs compared to their counterparts in control animals. In C. elegans the M lineage is a postembryonic mesodermal lineage.
- cell cycle arrest
Cells of the animals cease during one of its replicative phases (G1, S, G2, M).
- early exit cell cycle
Cells leave the M phase (mitosis and cytokinesis) at an earlier time than sister or other control cells.
- hermaphrodite sex muscle morphology variant
Any variation in the form, structure or composition of the muscles of the adult hermaphrodite reproductive system compared to control. In C. elegans hermaphrodites these muscles include the vulval and uterine muscles, located near the vulva in the midbody, which all derive from the M myoblast (Wormatlas).
- male sex muscle morphology variant
Any variation in the form, structure or composition of the muscles of the adult male reproductive system compared to control. In C. elegans males, the M myoblast gives rise to a much larger set of specialized muscles, compared to hermaphrodites, which differentiate within the tail region (Wormatlas).
- male M lineage variant
The descendants of the M precursor cell in male animals, exhibit any variation in developmental programs compared to their counterparts in control animals.
- G2 checkpoint variant
Mitotic cells exhibit variations during the passage through a cell cycle control point late in the G2 phase of the mitotic cell cycle just before entry into M phase, nuclear division, compared to control cells.
- plugged excretory pore
Males receive copulatory plugs from other males, deposited on their excretory pores. This phenotype is polymorphic among C. elegans strains and also in C. briggsae.
- sodium acetate chemotaxis defective
Failure in directed movement in response to sodium acetate. In C. elegans, sodium acetate is an attractant. Sodium acetate has also subsequently been used to assay for Na+ attraction in C. elegans.
- embryonic lethal
Animals die during embryonic development. In C. elegans, often assayed as refractile eggs that fail to hatch; when applied to large-scale RNAi screens in C. elegans, more than 10% of embryos die.