Egg-laying profile (A) and total brood size
(B) of WT (n = 27),
pamn-1 (n = 35),
pgal-1 (n = 32),
pghm-1 (n = 22), and
pghm-1;pamn-1 (n = 21) mutant
worms. The single mutants do not show any severe defects in
egg-laying behavior nor a difference in total brood size. Inactivation of both
pghm-1 and pamn-1, however, results in a
severely diminished brood size that is reduced by 42% compared with WT (*,
p < 0.05; **, p < 0.01; ***,
p < 0.001).