Monitoring animal development from embryo to adulthood. (a–b) A
representative N2 wild type animal. (c–d) A representative
clk-1(e2519) mutant. Dotted line represents hatch time of
the animal. The gray bar between the activity and fraction of quiescence plots
indicates non-lethargic (light) and lethargic (dark) periods. Activity is
averaged over a 15-minute window, whereas the fraction of quiescence is average
over a 30-minute window. (e) Duration of developmental stages strains N2
(n=39), clk-1(c2519) (n=10),
cat-2(e1112) (n=11), egl-4(n479)
(n=11). Duration of each stage includes both non-lethargic and lethargic
periods. Significance tests are performed in comparison to equivalent stages in
N2. *P<0.05, **P<0.005 (2-tailed Student’s
t-test). Absence of label represents P>0.05. (f) total development time for
each strain.