Premature lethality during the adult stage. When applied to large-scale RNAi screens in C. elegans, this phenotype is present in at least 10% of analyzed worms, or at least 30% in the case of rrf-3 perturbed background.
Animals die during the final stages of embryogenesis. In C. elegans, this lethality refers to death during the last (3-fold) stage of embryogenesis, which normally occurs 620-800 min after the first cleavage at 20C, the stage after elongation.
Any variation in the progression of somatic (striated) muscles that run longitudinally in males over time from its initial formation to its mature form compared to control. In C. elegans males have 3 additional sets of sex-specific longitudinal muscles (anterior and posterior outer, anterior and posterior inner, and caudal) that contribute to the body wall musculature (Wormatlas).