TABLE 1

Phenotypic distributions of well-fed wild-type animals

Fraction of:
Cultivation
 temperature17202517/25
17°0.800.020.070.11
20°0.100.740.050.11
25°0.150.010.750.09
  • Most well-fed wild-type animals migrated to their cultivation temperatures, 17°, 20°, and 25°, on the radial temperature-gradient assay. Animals' tracks were categorized into four groups after thermotaxis assay (see legend of Figure 1, B and C, for detail classification of the thermotaxis phenotype). Thermotaxis was evaluated using “fraction of 17,” “fraction of 20,” “fraction of 25,” and “fraction of 17/25.” About 10–20 animals were examined at each assay in 42 (17°), 17 (20°), and 34 (25°) trials.