Table 2.

Estimated variance components (genetic variance,${\hat{V}}_{\mathrm{G}}$, environmental variance, ${\hat{V}}_{\mathrm{E}}$, and additive genetic variance, ${\hat{V}}_{\mathrm{A}}$) and broad and narrow sense heritability estimates (H² and h², respectively) ± standard errors (SE), as well as evolvability (I_A = ${\hat{V}}_{\mathrm{A}}$/(mean CT_min)² × 100) for CT_min at the five developmental temperatures and for the slope of CT_min across temperatures

Trait	${\hat{V}}_{\mathrm{G}}$	${\hat{V}}_{\mathrm{E}}$	${\hat{V}}_{\mathrm{A}}$	H 2	h 2	I A
CTmin 17 °C	0.1005 ± 0.00101	0.1437 ± 0.00042	0.0528 ± 0.00055	0.41 ± 0.005	0.27 ± 0.004	0.669
CTmin 20 °C	0.0973 ± 0.00094	0.1078 ± 0.00031	0.0505 ± 0.00051	0.47 ± 0.005	0.32 ± 0.004	0.302
CTmin 23 °C	0.0929 ± 0.00091	0.1131 ± 0.00033	0.0503 ± 0.00051	0.45 ± 0.005	0.31 ± 0.004	0.173
CTmin 26 °C	0.1485 ± 0.00142	0.1581 ± 0.00046	0.0821 ± 0.00082	0.48 ± 0.005	0.34 ± 0.004	0.172
CTmin 29 °C	0.1943 ± 0.00198	0.2703 ± 0.00083	0.1116 ± 0.00118	0.42 ± 0.006	0.29 ± 0.005	0.184
Slope	0.0017 ± 0.00001	0.0009 ± 0.000005	0.0009 ± 0.00001	0.65 ± 0.036	0.51 ± 0.041	0.519

All variance components were significantly different from zero (Wald’s test).